FCC ID: QISRRU3276 Remote Radio Unit

Compliance and Safety Manual RRU3276 Issue: 02 Date:2015-5-14 HUAWEI TECHNOLOGIES CO., LTD. Copyright Huawei Technologies Co., Ltd. 2010. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied. Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website:

http://www.huawei.com Email:

support@huawei.com Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i 1 Safety 1 Safety About This Chapter 1.1 Health and Safety 1.2 Equipment Safety 1.3 Electromagnetic Field Exposure 1.1 Health and Safety 1.1.1 Overview 1.1.2 Electrical Safety 1.1.3 Inflammable Environment 1.1.4 Battery 1.1.5 Radiation 1.1.6 Working at Heights 1.1.7 Mechanical Safety 1.1.8 Bundling Signal Cables 1.1.1 Overview Introduction This section describes the safety precautions you must take before installing or maintaining Huawei equipment. To ensure safety of humans and the equipment, pay attention to the safety symbols on the equipment and all the safety instructions in this document. The "NOTE", "CAUTION", and "WARNING" marks in other documents do not represent all the safety instructions. They are only supplements to the safety instructions. Installation and maintenance personnel must understand basic safety precautions to avoid hazards. Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-1 1 Safety When operating Huawei equipment, in addition to following the general precautions in this document, follow the specific safety instructions given by Huawei. Only trained and qualified personnel are allowed to install, operate, and maintain Huawei equipment. Local Safety Regulations When operating Huawei equipment, you must follow the local laws and regulations. The safety instructions in this document are only supplements to the local laws and regulations. General Requirements To minimize risk of personal injury and damage to equipment, read and follow all the precautions in this document before performing any installation or maintenance. Ensure that the instructions provided in this document are followed completely. This section also provides guidelines for selecting the measuring and testing devices. Installation The device (or system) must be installed in an access-controlled location. The device must be fixed securely on the floor or to other immovable objects such as walls and mounting racks before operation. When installing the unit, always make the ground connection first and disconnect it at the end. Tighten the thumbscrews by using a tool after initial installation and subsequent access to the panel. The device must be fixed securely on the floor or other reliable objects, such as the walls and the mounting racks before operation. The device (or system) must be installed in an restricted access location. A readily accessible disconnect device shall be incorporated in the building installation wiring. Ground Do not damage the ground conductor or operate the device in the absence of a properly installed ground conductor. Conduct the electrical inspection carefully. The device (or system) must be connected permanently to the protection ground before an operation. The cross-sectional area of the protective ground conductor must be at least 16 mm2. Power Supply For DC-supplied model: The device applies to DC power source that complies with the Safety Extra-Low Voltage (SELV) requirements in IEC 60950-1 based safety standards. Prepared conductors are connected to the terminal block, and only the appropriate AWG/Type of wire is secured with the lug terminals. Short-circuit (overcurrent) protection of the device varies according to the building's installation. Ensure that a fuse or circuit breaker no larger than 80 VDC, 30A for DC-supplied model is used on the phase conductors (all current-carrying conductors). 1-2 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. To minimize the risk of fire, use only No. 26 AWG or larger telecommunication line cord. Reinforced insulation or double insulation must be provided to isolate DC source from 1 Safety AC mains supply. Human Safety Operator Do not operate the device or cables during lightning strikes. To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telecommunication network voltage (TNV) circuits. Move or lift the chassis by holding its lower edge. Do not hold the handles on certain modules such as power supply, fans, and boards because they cannot support the weight of the device. Do not look into the optical port without eye protection. Do not wear jewelry or watches when you operate the device. Only qualified professional personnel are allowed to install, configure, operate, and disassemble the device. Only the personnel authenticated or authorized by Huawei are allowed to replace or change the device of the parts of the device (including the software). Any fault or error that might cause safety problems must be reported immediately to a supervisor. Only qualified personnel are allowed to remove or disable the safety facilities and to troubleshoot and maintain the device. Operation temperature

-40 to +50C. 1.1.2 Electrical Safety High Voltage The high voltage power supply provides power for the device operation. Direct or indirect contact (through damp objects) with high voltage and AC mains supply may result in fatal danger. During the installation of the AC power supply facility, follow the local safety regulations. The personnel who install the AC facility must be qualified to perform high voltage and AC operations. Do not wear conductive articles, such as watches, hand chains, bracelets, and rings during the operation. Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-3 1 Safety When water is found in the rack or the rack is damp, switch off the power supply immediately. When the operation is performed in a damp environment, make sure that the device is dry. Non-standard and improper high voltage operations may result in fire and electric shock. Therefore, you must abide by the local rules and regulations when bridging and wiring AC cables. Only qualified personnel are allowed to perform high voltage and AC operations. Before powering on a device, ground the device. Otherwise, personal injury or device damage may be caused by high leakage current. Thunderstorm Do not perform any operation, including high voltage and AC operations, on a steel tower or mast during a thunderstorm. Tools Dedicated tools must be used during high voltage and AC operations. Avoid using ordinary tools. High Electrical Leakage Ground the device before powering it on. Otherwise, personal injury or device damage may be caused by high leakage current. 1-4 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. If a "high electrical leakage" tag is present on the power terminal of the device, you must ground the device before powering it on. 1 Safety Power Cable Do not install or remove power cables when the device is on. Transient contact between the core of the power cable and the conductor may generate electric arcs or sparks, which may cause fire or hurt human eyes. Before installing or removing the power cable, turn off the power switch. Before connecting a power cable, check that the label on the power cable is correct. If the device is connected with the DC power supply, use 4 mm or 10 AWG minimum power supply cord. Use type H03VV-F or light PVC-sheathed flexible cord according to IEC 60227. 1.1.3 Inflammable Environment Operating the electrical device in an inflammable environment can be fatal. Do not place the device in an environment that has inflammable and explosive air or gas. Do not perform any operation in this environment. 1.1.4 Battery Storage Battery Before operating storage batteries, carefully read the safety precautions for battery handling and connection. Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-5 1 Safety Improper handling of storage batteries causes hazards. When operating storage batteries, avoid short circuit and overflow or leakage of the electrolyte. Electrolyte overflow may damage the device. It will corrode metal parts and circuit boards, and ultimately damage the device and cause short circuit of circuit boards. Basic Precautions Before installing and maintaining the battery, note the following:

Do not wear metal articles such as wristwatch, hand chain, bracelet, and ring. Use special insulation tools. Take care to protect your eyes when operating the device. Wear rubber gloves and a protective coat in case of electrolyte overflow. When handling a storage battery, ensure that its electrodes are upward. Leaning or reversing the storage battery is prohibited. Short Circuit Battery short circuit may cause human injuries. Although the voltage of ordinary batteries is low, the instantaneous high current caused by the short circuit releases a great deal of energy. There is danger of explosion if the battery is incorrectly replaced. Therefore, replace the battery only with the same or equivalent type recommended by the manufacturer. Keep away metal objects, which may cause battery short circuit, from batteries. If metal objects must be used, first disconnect the batteries in use before performing any other operations. Hazardous Gas 1-6 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. 1 Safety Do not use unsealed lead acid storage batteries. Lead acid storage batteries must be placed horizontally and stably to prevent the batteries from releasing flammable gas, which may cause fire or erode the device. Lead acid storage batteries in use emit flammable gas. Therefore, ventilation and fireproofing measures must be taken at the sites where lead acid storage batteries are used. Battery Temperature If a battery overheats, the battery may be deformed or damaged, and the electrolyte may overflow. When the temperature of the battery is higher than 60, check the battery for electrolyte overflow. If the electrolyte overflows, absorb and counteract the electrolyte immediately. Battery Leakage When the electrolyte overflows, absorb and counteract the electrolyte immediately. When moving or handling a battery whose electrolyte leaks, note that the leaking electrolyte may hurt human bodies. When you find the electrolyte leaks, use the following substances to counteract and absorb the leaking electrolyte:

Sodium bicarbonate (baking soda): NaHCO3 Sodium carbonate (soda): Na2CO3 Select a substance to counteract and absorb the leaking electrolyte according to the instructions of the battery manufacturer. 1.1.5 Radiation Electromagnetic Field Exposure Radio-frequency signals with high intensity are harmful to human body. Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-7 Before installing or maintaining an antenna on a steel tower or a mast with a large number of transmitter antennas, coordinate with the parties concerned to shut down the transmitter antennas. 1 Safety Laser The laser hazard level of this device is Class 1. When handling optical fibers, do not stand close to or look at the optical fiber outlet directly with unprotected eyes. General Laser Information Laser transceivers or transmitters are used in optical transmission systems and associated test tools. The wavelength of the laser is between 780 nm and 1600 nm. The laser transmitted through optical fibers has very high power density and is invisible to human eyes. A beam of light causes damage to the retina. Laser of wavelengths used in telecommunications causes thermal damage to the retina. Lasers used in lightwave systems have a larger beam divergence, typically 10 to 20 degrees. Looking at an un-terminated fiber or damaged fiber with unprotected eyes at a distance greater than 150 mm (6 inches) does not cause eye injury. Eye injury, however, may be caused if an optical tool such as a microscope, magnifying glass, or eye loupe is used to view the energized fiber end. A lightwave system in normal operating mode is totally enclosed and presents no risk of eye injury. The automatic laser shutdown (ALS) feature of the lightwave system also ensures safety. The ALS, however, can be applied to bi-directional transmission only. If the receiver side does not detect the laser from the transmitter side, it sends the transmitter side a signal. Upon receiving the signal, the ALS shuts down the laser emission within 100 ms. Safety Guidelines Follow the following guidelines to avoid laser radiation:

Read the instructions before installing, operating, and maintaining the device. Ignoring the instructions can cause exposure to dangerous laser radiation. Wear a pair of eye-protective glasses when you are handling lasers or fibers. Only qualified personnel are allowed to perform laser-related operations. Make sure that the optical source is switched off before disconnecting optical fiber connectors. Before opening the front door of an optical transmission system, make sure that you are not exposed to laser radiation. Do not look at the end of an exposed fiber or an open connector when you are not sure whether the optical source is switched off or not. Use an optical power meter to check that the optical source is switched off and verify that it is off by measuring the optical power. 1-8 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. Do not use an optical tool such as a microscope, a magnifying glass, or an eye loupe to view the optical connector or fiber. 1 Safety Handling Fibers Read the instructions before handling fibers:

Only trained and qualified personnel can cut or splice fibers. Before cutting or splicing a fiber, ensure that the fiber is disconnected from the optical source. After disconnecting the fiber, use protecting caps to protect all the optical connectors. 1.1.6 Working at Heights Avoid object falling when you work at heights. When working at heights, fulfill the following requirements:

Only trained personnel can work at heights. Prevent the devices and tools that you carry from falling down. Take safety and protection measures, for example, wear a helm and safety belt. Wear warm clothes when working at heights in a cold region. Before working at heights, check that all the lifting facilities are in good condition. Hoisting Heavy Objects Do not walk below the cantilever or hoisted objects when heavy objects are being hoisted. Only trained and qualified personnel can perform hoisting operations. Before hoisting heavy objects, check that the hoisting tools are complete and in good condition. Before hoisting heavy objects, ensure that the hoisting tools are fixed to a secure object or wall with good weight capacity. Issue orders with short and explicit words to avoid misoperations. Ensure that the angle formed by two cables is not larger than 90 degrees. See Figure 1-1. Issue () Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-9 1 Safety Figure 1-1 Hoisting heavy objects Using Ladders Checking a Ladder Before using a ladder, check whether the ladder is damaged. Only the ladder in good condition can be used. Before using a ladder, you should know the maximum weight capacity of the ladder. Avoid overweighing the ladder. Placing a Ladder The recommended gradient of ladders is 75 degrees. You can measure the gradient of the ladder with an angle square or your arms. When using a ladder, ensure that the wider feet of the ladder are downward, or take protection measures for the ladder feet to prevent the ladder from sliding. Ensure that the ladder is placed securely. Climbing Up a Ladder When climbing up a ladder, note the following:

Ensure that the center of gravity of your body does not deviate from the edges of the two long sides. To minimize the risk of falling, hold your balance on the ladder before any operation. 1-10 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. Do not climb higher than the fourth rung of the ladder (counted from up to down). If you want to climb up a roof, ensure that the ladder top is at least one meter higher than the roof. 1 Safety 1.1.7 Mechanical Safety Drilling Holes Do not drill the cabinet at will. Drilling holes without complying with the requirements affects the electromagnetic shielding performance of the cabinet and damages the cables inside the cabinet. In addition, if the scraps caused by drilling enter the cabinet, the printed circuit boards (PCBs) may be short circuited. Before you drill a hole in the cabinet, wear insulated gloves and remove the internal cables from the cabinet. Wear an eye protector when drilling holes. This is to prevent your eyes from being injured by the splashing metal scraps. Ensure that the scraps caused by drilling do not enter the cabinet. Drilling holes without complying with the requirements affects the electromagnetic shielding performance of the cabinet. After drilling, clean the metal scraps immediately. Sharp Objects Before you hold or carry a device, wear protective gloves to avoid getting injured by sharp edges of the device. Handling Fans When handling fans, note the following:

When replacing a component, place the component, screws, and tools in a safe place. Otherwise, if any of them fall into the operating fans, the fans may be damaged. When replacing a component near fans, do not insert your fingers or boards into the operating fans until the fans are switched off and stops running. When maintaining fan unit, disconnect the fan power prior to maintain it. Fan blades are hazardous moving parts. Keep away from moving fan blades. Issue () Huawei Proprietary and Confidential 1-11 Copyright Huawei Technologies Co., Ltd. 1 Safety Lifting Heavy Objects When heavy objects are being lifted, do not stand or walk under the cantilever or the lifted object. 1.1.8 Bundling Signal Cables Do not bundle signal cables with high current cables or high voltage cables. Maintain a minimum space of 150 mm between adjacent ties. 1.2 Equipment Safety 1.2.1 Electricity Safety 1.2.2 Electrostatic Discharge 1.2.3 Installing and Removing a Board 1.2.4 Laying Cables 1.2.1 Electricity Safety Thunderstorm During thunderstorms, the electromagnetic field generated in the thunderstorm area may damage the electronic parts. To prevent damage to the device during lightning, ground the device properly. High Electrical Leakage 1-12 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. 1 Safety If the "high electrical leakage" tag is present on the power terminal of the device, you must ground the device before powering it on. Fuse If a fuse is to be replaced, the new fuse must be of the same type and specifications. Table 1-1 lists the fuses that affect the safety of the device (or system). Use fuses according to this list. Table 1-1 Fuse description Position Manufacturer Type Rating Fuse F1, F2 (on SS01OPU) 19040089 Littelfuse 0215010.M 250 V, 10 A Fuse F1 (on LVC) Littelfuse 0217.500.M F500 mAL/250 V 19040013 Fuse F1, F2 (on APIU) 19040079 Bussman Littelfuse Bussman S500-500mA 0313025.M 25 A MDL-25A 1.2.2 Electrostatic Discharge The static electricity generated by human bodies may damage the electrostatic-sensitive components on boards, for example, the large-scale integrated (LSI) circuits. Human body movement, friction between human bodies and clothes, friction between shoes and floors, or handling of plastic articles causes static electromagnetic fields on human bodies. These static electromagnetic fields cannot be eliminated until the static is discharged. To prevent electrostatic-sensitive components from being damaged by the static on human bodies, you must wear a well-grounded ESD wrist strap when touching the device or handling boards or application-specific integrated circuits (ASICs). Issue () Huawei Proprietary and Confidential 1-13 Copyright Huawei Technologies Co., Ltd. 1 Safety Figure 1-2 shows how to wear an ESD wrist strap. Figure 1-2 Wearing an ESD wrist strap 1.2.3 Installing and Removing a Board When installing a board, use proper force to prevent the pins on the backplane from being leaned. When installing or removing a board, note the following:

Insert the board along the guide rails. Prevent the surface of a board from contacting the surface of another board. This is to prevent the boards from being short-circuited or scratched. To prevent electrostatic-sensitive devices from being damaged by the ESD, do not touch the circuits, components, connectors, or connection slots on boards. 1.2.4 Laying Cables When the temperature is very low, violent strike or vibration may damage the cable sheathing. To ensure safety, comply with the following requirements:

Cables can be laid or installed only when the temperature is higher than 0. Before laying cables which have been stored in a temperature lower than 0, move the cables to an environment of the ambient temperature and store them at the ambient temperature for at least 24 hours. Handle cables with caution, especially at a low temperature. Do not drop the cables directly from the vehicle. 1-14 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. 1.3 Electromagnetic Field Exposure Introduction 1 Safety The Base Transceiver Station (BTS) emits Radio Frequency (RF) radiation. Follow the local safety regulations when installing and operating the BTS to avoid radiation hazard. Guidelines on Limiting Exposure to Electromagnetic Fields There are a number of international regulations, standards, and guidelines for exposure to electromagnetic fields. Some European countries have adopted the recommendation of the council of the European Union (1999/519/EC), released on July 12, 1999, focusing on the hazards of exposure to electromagnetic fields. The recommendation is based on the guideline published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Reference levels are provided for exposure assessment, that is, to determine whether the minimum limit of human exposure to electromagnetic fields is exceeded. The minimum limit on exposure to electromagnetic fields is based on established health effects and biological considerations. Location of Base Station Antennas Base station antennas, the source of the radiation, are usually mounted:

On freestanding towers, with a height up to 30 m On a tower on the top of buildings To the side of buildings, on rare occasions Generally, the antenna cannot be located in a position lower than 10 m. The energy usually forms a horizontal main beam and is slightly tilted downwards. The remaining energy forms into weaker beams on both sides of the main beam. The main beam, however, does not reach the ground if the antenna is around 50200 m away from the ground. The highest level of emission would be expected in close vicinity of the antenna and in line of sight to the antenna. Exclusion Zones The requirements for exclusion zones are as follows:

The antenna should be properly located to prevent the public from accessing the area where the RF radiation exceeds the previously mentioned limits. If areas with excessive RF radiation are accessible to the operation and maintenance

(O&M) personnel, ensure that they know the source of radiation and can power off or shut down the transmitters before entering high radiation areas. In addition, such areas must be confined within a distance of 10 m from the antennas. Each exclusion zone should be defined by a physical barrier and by a recognizable sign warning the public or O&M personnel. Guidelines on Choosing Antenna Sites The guidelines on choosing the antenna sites are as follows:

Issue () Huawei Proprietary and Confidential 1-15 Copyright Huawei Technologies Co., Ltd. 1 Safety For roof-mounted antennas, raise the antennas above the height of the personnel who may have to work on the rooftop. For roof-mounted antennas, keep the transmitter antennas away from the areas accessible to the public, such as roof access points, telephone service points, and HVAC devices. For roof-mounted directional antennas, place the antennas near the periphery, and do not make the antennas face the building. Consider the trade-off between large aperture antennas (lower maximum RF) and small aperture antennas (lower visual impact). Keep higher-power antennas away from accessible areas. Keep the antennas in a site that is far away from urban areas, though this may contradict the coverage area requirements. Exercise extra caution when designing co-location sites, that is, antennas owned by different companies are located in the same site or are co-sited. This applies particularly to sites that include high-power broadcast (FM/TV) antennas. Local zone often favors co-location, but co-location may cause safety problems. Take special precautions for antenna sites near hospital and schools. Location of BTS The BTS is shielded from RF radiation hazards. The device has been tested to comply with the radioactive spurious emission requirements of international standards or local regulations. Therefore, the BTS under normal operating conditions does not cause danger to the public and O&M engineers. However, the limits for RF radiation might be exceeded due to faulty antenna cables or for other causes. BTS sites shall not be accessible to the public. Only authorized and trained personnel can access BTS sites or equipment rooms. A sign of excessive RF radiation must be present on the doors of the sites or equipment rooms to warn the personnel inside the site or equipment room of excessive RF radiation. BTS sites must be regularly monitored and inspected after installation. Prediction of the Exposure to Electromagnetic Fields This section provides a theoretical approach to calculate possible exposure to electromagnetic radiation around a BTS antenna. Precise statements are possible either with measurements or complex calculations considering the complexity of the environment, such as soil conditions, nearby buildings and other obstacles. The complexity may cause reflection, deflection, and scattering of electromagnetic fields. The maximum output power (given in EIRP) of a BTS is usually limited by license conditions of the network operator. A rough estimation of the expected exposure in power flux density on a given point can be made with the following equation:

S = (P(W) x Gnumeric)/(4 x r(m) x ) Where, P = Maximum output power at antenna port of the BTS in W Gnumeric = Numeric gain (see below) r = Distance between the antenna and the point of exposure in meters 1-16 Huawei Proprietary and Confidential Issue () Copyright Huawei Technologies Co., Ltd. For the calculation of the Gnumeric, Gnumeric = 10GdB/10 GdB = Gantenna(dB) Bcable(dB) Bvertical-attenutation(dB) Bhorizontal-attenuation(dB) B = attenuation in dB 1 Safety Issue () Huawei Proprietary and Confidential 1-17 Copyright Huawei Technologies Co., Ltd.

DBS3900 (ICR) Installation Guide Issue Date 12 2015-04-30 HUAWEI TECHNOLOGIES CO., LTD. Copyright Huawei Technologies Co., Ltd. 2015. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website:

Email:

http://www.huawei.com support@huawei.com Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i DBS3900 (ICR) Installation Guide About This Document About This Document Overview This document describes the process of installing the DBS3900 on an indoor centralized rack

(ICR). Product Version The following table lists the product versions related to this document. Product Name Solution Version Product Version DBS3900 SRAN7.0 and later versions V100R007C00 and later versions GBSS14.0 and later versions V100R014C00 and later versions RAN14.0 and later versions V200R014C00 and later versions eRAN3.0 and later versions V100R005C00 and later versions Intended Audience This document is intended for:

Base station installation personnel Content Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii DBS3900 (ICR) Installation Guide Contents Contents About This Document.....................................................................................................................ii 1 Changes in the DBS3900 (ICR) Installation Guide.................................................................1 2 Installation Preparations..............................................................................................................6 2.1 Reference Documents.....................................................................................................................................................7 2.2 Tools and Instruments....................................................................................................................................................7 2.3 Skills and Requirements for Onsite Personnel...............................................................................................................8 3 Information to Be Known Before the Installation..................................................................9 3.1 Introduction to the Equipment......................................................................................................................................10 3.2 Installation Scenarios....................................................................................................................................................13 3.2.1 Installation Scenarios.................................................................................................................................................13 3.2.2 Height-Restricted Scenarios......................................................................................................................................15 3.2.3 Height-Unrestricted Scenarios...................................................................................................................................26 3.3 Requirements for Dimensions and Clearances.............................................................................................................42 4 Unpacking the Equipment.........................................................................................................50 5 Obtaining the ESN......................................................................................................................52 6 Installation Process.....................................................................................................................54 7 Assembling the IFS06.................................................................................................................56 8 Installing the IFS06.....................................................................................................................61 8.1 Installing the IFS06 on the Concrete Floor..................................................................................................................62 8.2 Installing the IFS06 on the ESD Floor.........................................................................................................................65 9 Installing the Main Brackets for RRUs...................................................................................70 9.1 Introduction to the Bracket Assembly..........................................................................................................................71 9.2 Installing the Main Brackets for DC RRUs..................................................................................................................72 9.3 Installing the Main Brackets for AC RRUs..................................................................................................................74 10 Installing the GPS Surge Protector........................................................................................77 11 Installing the IMB03.................................................................................................................80 11.1 Installing the Upper IMB03 Independently................................................................................................................81 11.2 Installing the Lower IMB03 Independently...............................................................................................................82 Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii DBS3900 (ICR) Installation Guide Contents 11.3 Installing the IMB03s on the Upper and Lower Levels.............................................................................................84 12 Installing the Equipotential Cable and PGND Cable........................................................88 13 Installing Components in the IMB03....................................................................................90 13.1 Components in an IMB03...........................................................................................................................................91 13.2 Installing the BBU......................................................................................................................................................91 13.3 Installing the DCDU-03B, DCDU-11B or DCDU-12B.............................................................................................93 13.4 (Optional) Installing the DC/DC Power System........................................................................................................94 13.5 (Optional) Installing the AC/DC Power System........................................................................................................96 14 Installing RRUs..........................................................................................................................99 14.1 Installing DC RRUs..................................................................................................................................................100 14.2 Installing AC RRUs..................................................................................................................................................102 15 Installing Cables......................................................................................................................104 15.1 Cabling Requirements..............................................................................................................................................106 15.2 Cable Connections....................................................................................................................................................112 15.2.1 Cable Connections (-48 V DC).............................................................................................................................112 15.2.2 Cable Connections (220 V AC).............................................................................................................................116 15.2.3 Cable Connections (+24 V DC).............................................................................................................................118 15.3 Cable Installation Process.........................................................................................................................................119 15.4 Cable Routes.............................................................................................................................................................120 15.5 Installing PGND Cables for RRUs...........................................................................................................................121 15.6 Installing the BBU Power Cable..............................................................................................................................123 15.7 Installing Input Power Cables...................................................................................................................................125 15.8 (Optional) Installing the DCDU Power Cable and Monitoring Signal Cable..........................................................128 15.9 Installing RRU Power Cables...................................................................................................................................132 15.10 (Optional) Installing BBU Inter-connection Cable................................................................................................138 15.11 Installing Transmission Cables...............................................................................................................................142 15.11.1 Installing E1/T1 Cables.......................................................................................................................................142 15.11.2 Installing FE/GE Ethernet Cables........................................................................................................................143 15.11.3 Installing FE/GE Optical Cables.........................................................................................................................144 15.12 Installing CPRI Optical Cables...............................................................................................................................147 15.13 Installing RF Jumpers.............................................................................................................................................151 15.14 Installing the GPS Clock Signal Cable...................................................................................................................152 16 Installation Checklist..............................................................................................................157 17 Power-On Check......................................................................................................................158 18 Installing the Cover Plate of the IMB03..............................................................................160 Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv DBS3900 (ICR) Installation Guide 1 Changes in the DBS3900 (ICR) Installation Guide 1 Changes in the DBS3900 (ICR) Installation Guide This chapter describes the changes in the DBS3900 (ICR) Installation Guide. 12(2015-04-30) This is the twelfth commercial release. Compared with issue 11(2014-11-20), no information is added or deleted. Compared with issue 11(2014-11-20), this issue incorporates the following changes:

Topic Change Description 15.11.3 Installing FE/GE Optical Cables Added a caution of replacing the optic module. This is the eleventh commercial release. Compared with issue 10 (2014-07-30), no information is added or deleted. Compared with issue 10 (2014-07-30), this issue incorporates the following changes:

Topic Change Description 13.2 Installing the BBU Added descriptions of BBU ventilation channel. 11(2014-11-20) 10 (2014-07-30) This is the tenth official release. Compared with issue 09 (2013-12-23), this issue does not include any new information. Compared with issue 09 (2013-12-23), this issue includes the following changes:

Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1 DBS3900 (ICR) Installation Guide 1 Changes in the DBS3900 (ICR) Installation Guide Topic Change Description 8.1 Installing the IFS06 on the Concrete Floor 8.2 Installing the IFS06 on the ESD Floor Modified drill holes with a depth ranging from 52 mm (1.94 in.) to 60 mm (2.36 in.) to a depth ranging from 55 mm (2.05 in.) to 60 mm (2.36 in.). Compared with issue 09 (2013-12-23), no information is deleted from this issue. 09 (2013-12-23) This is the ninth official release. Compared with issue 08 (2013-11-28), this issue does not include any new information. Compared with issue 08 (2013-11-28), this issue includes the following changes:

Topic Change Description 15.9 Installing RRU Power Cables Added the installation procedure of ground clip for RRU power cable. Compared with issue 08 (2013-11-28), no information is deleted from this issue. 08 (2013-11-28) This is the eigth official release. Compared with issue 07 (2012-12-30), this issue does not include any new information. Compared with issue 07 (2012-12-30), this issue includes the following changes:

Topic Change Description 9.1 Introduction to the Bracket Assembly Added two kinds of Bracket Assembly. Modified the label of main brackets. 9.2 Installing the Main Brackets for DC RRUs 9.3 Installing the Main Brackets for AC RRUs Compared with issue 07 (2012-12-30), no information is deleted from this issue. 07 (2012-12-30) This is the seventh official release. Compared with issue 06 (2012-09-15), this issue does not include any new information. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 2 DBS3900 (ICR) Installation Guide 1 Changes in the DBS3900 (ICR) Installation Guide Compared with issue 06 (2012-09-15), this issue includes the following changes:

Topic Change Description 15.10 (Optional) Installing BBU Inter-

connection Cable Modified the description of BBU interconnection signal cables in the context. Compared with issue 06 (2012-09-15), no information is deleted from this issue. 06 (2012-09-15) This is the sixth official release. Compared with issue 05 (2012-07-06), this issue does not include any new information. Compared with issue 05 (2012-07-06), this issue includes the following changes:

Topic Change Description 3.1 Introduction to the Equipment Improved the structure of the IMB03. 3.3 Requirements for Dimensions and Clearances 11 Installing the IMB03 13 Installing Components in the IMB03 15 Installing Cables Compared with issue 05 (2012-07-06), no information is deleted from this issue. 05 (2012-07-06) This is the fifth official release. Compared with issue 04 (2012-05-19), this issue does not include any new information. Compared with issue 04 (2012-05-19), this issue includes the following changes:

Topic About This Document Change Description Added the version V100R007C01 to DBS3900 and V100R005C01 to DBS3900 LTE. Compared with issue 04 (2012-05-19), no information is deleted from this issue. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 3 DBS3900 (ICR) Installation Guide 04 (2012-05-19) 1 Changes in the DBS3900 (ICR) Installation Guide This is the fourth official release. Compared with issue 03 (2012-01-20), this issue does not include any new information. Compared with issue 03 (2012-01-20), this issue includes the following changes:

Topic Change Description 9.2 Installing the Main Brackets for DC RRUs Added the description about using expansion bolts to install the main bracket. 9.3 Installing the Main Brackets for AC RRUs 13.3 Installing the DCDU-03B, DCDU-11B or DCDU-12B Deleted the operations of installing the ground cable for the DCDU-03B. Compared with issue 03 (2012-01-20), no information is deleted from this issue. 03 (2012-01-20) This is the third official release. Compared with issue 02 (2011-08-30), this issue does not include any new information. Compared with issue 02 (2011-08-30), this issue includes the following changes:

Topic Change Description 4 Unpacking the Equipment Modified the unpacking check operations. Compared with issue 02 (2011-08-30), no information is deleted from this issue. 02 (2011-08-30) This is the second official release. Compared with issue 01 (2011-03-30), this issue includes the following changes:

Topic Change Description Reorganized these sections and optimized the related description and figures. 3.1 Introduction to the Equipment Height-Restricted Scenarios (-48 V DC) Height-Restricted Scenarios (220 V AC) Height-Restricted Scenarios (+24 V DC) Height-Unrestricted Scenarios (-48 V DC) Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 4 DBS3900 (ICR) Installation Guide 1 Changes in the DBS3900 (ICR) Installation Guide Topic Change Description Height-Unrestricted Scenarios (220 V AC) Height-Unrestricted Scenarios (+24 V DC) 10 Installing the GPS Surge Protector Added the tools used for installing the surge protector. 15.3 Cable Installation Process 15.14 Installing the GPS Clock Signal Cable Optimized the figures. Optimized the figures. Compared with issue 01 (2011-03-30), this issue does not include any new information. Compared with issue 01 (2011-03-30), no information is deleted from this issue. 01 (2011-03-30) This is the first official release. Compared with draft A (2011-01-30), this issue does not include any changes. Compared with draft A (2011-01-30), this issue does not include any new information. Compared with draft A (2011-01-30), no information is deleted from this issue. Draft A (2011-01-30) This is a draft. Compared with the issues for the MBTS V100R003C00, WCDMA NodeB V200R012C00, GSM BTS V100R012C00, and eNodeB V100R002C00, this issue includes the following changes:

Topic 3.2 Installation Scenarios Change Description Reorganized this section. Compared with the issues for the MBTS V100R003C00, WCDMA NodeB V200R012C00, GSM BTS V100R012C00, and eNodeB V100R002C00, this issue includes the following new information:

l Added triple-mode scenarios. l Added the cable connections in triple-mode scenarios. Compared with the issues for the MBTS V100R003C00, WCDMA NodeB V200R012C00, GSM BTS V100R012C00, and eNodeB V100R002C00, no information is deleted from this issue. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 5 DBS3900 (ICR) Installation Guide 2 Installation Preparations 2 Installation Preparations About This Chapter This chapter lists the tools and instruments that must be obtained before the installation, and it also specifies the skills that the engineering personnel must have. 2.1 Reference Documents This section describes the documents that you need to obtain before performing the installation. 2.2 Tools and Instruments This section lists the tools and instruments that must be obtained before the installation. 2.3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained. Before performing any operation, onsite personnel must be familiar with correct operation methods and safety precautions. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 6 DBS3900 (ICR) Installation Guide 2 Installation Preparations 2.1 Reference Documents This section describes the documents that you need to obtain before performing the installation. l Before the installation, familiarize yourself with related information in the following documents:

BBU3900 Hardware Description For how to install RRUs, see the related RRU installation guide. Safety Precautions l During the installation, familiarize yourself with related information in the following document:

Installation Reference 2.2 Tools and Instruments This section lists the tools and instruments that must be obtained before the installation. Marker Phillips screwdriver (M4, M5, M6, M8) Diagonal pliers Flat-head screwdriver (M4, M5, M6, M8) Adjustable wrench (size 19 mm or 0.75 in.) Socket wrench (M10, M12) Torque socket (30 Nm to 50 Nm or 265.52 lbfin. to 442.54 lbfin.) Torque screwdriver COAX crimping tool Wire clippers Rubber mallet Utility knife Wire stripper Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 7 DBS3900 (ICR) Installation Guide 2 Installation Preparations Hammer drill (16) Heat gun Level Multimeter Measuring tape Vacuum cleaner ESD gloves ESD wrist strap Hydraulic pliers 2.3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained. Before performing any operation, onsite personnel must be familiar with correct operation methods and safety precautions. Before the installation, pay attention to the following items:

l The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods. l The number of onsite personnel depends on the engineering schedule and installation environment. Generally, only three to five onsite personnel are necessary. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 8 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation 3 Information to Be Known Before the Installation About This Chapter This chapter describes the information about the installation, including exteriors, installation scenarios, and clearance requirements. 3.1 Introduction to the Equipment This section describes the devices involved in the DBS3900 installation. 3.2 Installation Scenarios This section describes ICR installation scenarios. 3.3 Requirements for Dimensions and Clearances This section describes the requirements for dimensions and clearances of devices to be installed. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 9 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation 3.1 Introduction to the Equipment This section describes the devices involved in the DBS3900 installation. NOTE An indoor centralized rack (ICR) consists of an IFS06 and an IMB03:

l An IFS06 is a type of indoor floor installation support (IFS). l An IMB03 is a type of indoor mini box. IFS06 An IFS06 is an indoor floor installation support. It is used for installing the IMB03 and RRUs in a centralized manner. Figure 3-1 shows an IFS06. Figure 3-1 IFS06

(1) Cable tray

(5) Adjustable beam

(2) Ground bar 2

(6) Ground bar 1

(3) Rear foot

(4) Front foot

(7) Main frame

-

IMB03 An IMB03 is an indoor mini box. It is used for installing the BBU and power devices. Figure 3-2 shows an IMB03. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 10 DBS3900 (ICR) Installation Guide Figure 3-2 IMB03 3 Information to Be Known Before the Installation

(1) NO STEPPING sign

(4) Slot assignment label

(2) Protective plate

(3) Cover plate

(5) Cable outlet

(6) Dust disposal vent Figure 3-3 shows a BBU. Figure 3-3 BBU Power devices are the DCDU-03B, DCDU-11B, and AC/DC and DC/DC power devices. Figure 3-4 shows a DCDU-03B. Figure 3-5 shows a DCDU-11B. Figure 3-6 shows an AC/DC power device. Figure 3-7 shows a DC/DC power device. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 11 DBS3900 (ICR) Installation Guide Figure 3-4 DCDU-03B 3 Information to Be Known Before the Installation Figure 3-5 DCDU-11B Figure 3-6 AC/DC power device Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 12 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-7 DC/DC power device 3.2 Installation Scenarios This section describes ICR installation scenarios. 3.2.1 Installation Scenarios The ICR installation options vary according to height-restricted and height-unrestricted scenarios. In the scenario where a cable tray is 1.8 m to 2 m (5.91 ft to 6.56 ft) above the floor (referred to as the height-restricted scenario), RRUs are installed on beam 2 and beam 4, as shown in Figure 3-8. NOTE l In height-restricted scenarios, the adjustable beams need to be moved to the position marked 1.8 m

(5.91 ft). l When RRUs are installed on beam 1 or 2, they are installed at the upper layer. l When RRUs are installed on beam 3 or 4, they are installed at the lower layer. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 13 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-8 Height-restricted scenarios

(1) Cable tray

(2) Beam 1

(3) Beam 2

(4) Beam 3

(5) Beam 4 In the scenario where a cable tray is higher than 2 m (6.56 ft) above the floor (referred to as the height-unrestricted scenario), RRUs are installed on beam 1 and beam 3, as shown in Figure 3-9. NOTE l When RRUs are installed on beam 1 or 2, they are installed at the upper layer. l When RRUs are installed on beam 3 or 4, they are installed at the lower layer. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 14 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-9 Height-unrestricted scenarios

(1) Cable tray

(2) Beam 1

(3) Beam 2

(4) Beam 3

(4) Beam 4 3.2.2 Height-Restricted Scenarios This section describes the height-restricted scenarios for installing the DBS3900 on an ICR. Height-Restricted Scenarios (-48 V DC) This section describes the height-restricted scenarios with external -48 V DC power supply. In these scenarios, DC RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In this scenario, a single IFS06 supports a maximum of six DC RRUs, and a single site supports a maximum of 12 DC RRUs. When only three DC RRUs need to be installed, they are installed at the lower layer. l 1 IFS06+1 IMB03+3 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 15 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-10 1 IFS06+1 IMB03+3 DC RRUs Table 3-1 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Lower layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. l 1 IFS06+1 IMB03+6 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 16 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-11 1 IFS06+1 IMB03+6 DC RRUs Table 3-2 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS Upper layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-3 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE Upper layer 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 17 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-4 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE Upper layer Lower layer 3 RRU3804s 3 RRU3804s 3 RRU3201s 3 RRU3201s l 2 IFS06s+2 IMB03s+12 DC RRUs Figure 3-12 2 IFS06s+2 IMB03s+12 DC RRUs Co-Cabinet of UMTS and LTE 3 RRU3804s 3 RRU3201s Table 3-5 12 DC RRUs (in GSM/UMTS mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3804s 6 RRU3008s 6 RRU3804s Table 3-6 12 DC RRUs (in GSM/LTE mode) Position ICR 1 Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE 6 RRU3908s 6 RRU3008s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 18 DBS3900 (ICR) Installation Guide Position ICR 2 3 Information to Be Known Before the Installation Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE 6 RRU3201s 6 RRU3201s Table 3-7 12 DC RRUs (in UMTS/LTE mode) Position ICR 1 ICR 2 Co-Cabinet of UMTS and LTE 6 RRU3804s 6 RRU3201s DC RRUs Installed Independently (IFS06+DC RRUs) In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-13 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the lower layer. Figure 3-13 DC RRUs installed on the IFS06 Height-Restricted Scenarios (220 V AC) This section describes the height-restricted scenarios with external 220 V AC power supply. In these scenarios, RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 19 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In this scenario, a single IFS06 supports a maximum of three DC RRUs, and a single site supports a maximum of six DC RRUs. l 1 IFS06+2 IMB03s+3 DC RRUs Figure 3-14 1 IFS06+2 IMB03s+3 DC RRUs Table 3-8 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Upper layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. l 2 IFS06s+2 IMB03s+6 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 20 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-15 2 IFS06s+2 IMB03s+6 DC RRUs Table 3-9 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS ICR 1 ICR 2 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-10 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE ICR 1 ICR 2 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 21 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-11 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE ICR 1 ICR 2 3 RRU3804s 3 RRU3804s 3 RRU3201s 3 RRU3201s Co-Cabinet of UMTS and LTE 3 RRU3804s 3 RRU3201s RRUs Installed Independently (IFS06+RRUs) l 1 IFS06+6 DC RRUs In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-16 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the upper layer. Figure 3-16 DC RRUs installed on the IFS06 l 1 IFS06+2 AC RRUs In this scenario, a single IFS06 supports a maximum two AC RRUs, as shown in Figure 3-17. NOTE This document uses AC RRU3908s as examples. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 22 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-17 AC RRUs installed on the IFS06 Height-Restricted Scenarios (+24 V DC) This section describes the height-restricted scenarios with external +24 V DC power supply. In these scenarios, DC RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In this scenario, a single IFS06 supports a maximum of three DC RRUs, and a single site supports a maximum of six DC RRUs. l 1 IFS06+2 IMB03s+3 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 23 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-18 1 IFS06+2 IMB03s+3 DC RRUs Table 3-12 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Upper layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. l 2 IFS06s+2 IMB03s+6 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 24 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-19 2 IFS06s+2 IMB03s+6 DC RRUs Table 3-13 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS ICR 1 ICR 2 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-14 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE ICR 1 ICR 2 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 25 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-15 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE ICR 1 ICR 2 3 RRU3804s 3 RRU3804s 3 RRU3201s 3 RRU3201s Co-Cabinet of UMTS and LTE 3 RRU3804s 3 RRU3201s DC RRUs Installed Independently (IFS06+DC RRUs) In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-20 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the upper layer. Figure 3-20 DC RRUs installed on the IFS06 3.2.3 Height-Unrestricted Scenarios This section describes the height-unrestricted scenarios for installing the DBS3900 on an ICR. Height-Unrestricted Scenarios (-48 V DC) This section describes the height-unrestricted scenarios with external -48 V DC power supply. In these scenarios, DC RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 26 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In single- or dual-mode scenarios, a single IFS06 supports a maximum of six DC RRUs, and a single site supports a maximum of 12 DC RRUs. When only three DC RRUs need to be installed, they are installed at the lower layer. l 1 IFS06+1 IMB03+3 DC RRUs Figure 3-21 1 IFS06+1 IMB03+3 DC RRUs Table 3-16 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Lower layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. l 1 IFS06+1 IMB03+6 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 27 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-22 1 IFS06+1 IMB03+6 DC RRUs Table 3-17 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS Upper layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-18 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE Upper layer 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Table 3-19 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE Co-Cabinet of UMTS and LTE Upper layer 3 RRU3804s 3 RRU3201s 3 RRU3804s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 28 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Position UMTS LTE Co-Cabinet of UMTS and LTE Lower layer 3 RRU3804s 3 RRU3201s 3 RRU3201s l 2 IFS06s+2 IMB03s+12 DC RRUs Figure 3-23 2 IFS06s+2 IMB03s+12 DC RRUs Table 3-20 12 DC RRUs (in GSM/UMTS mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3804s 6 RRU3008s 6 RRU3804s Table 3-21 12 DC RRUs (in GSM/LTE mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3201s 6 RRU3008s 6 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 29 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-22 12 DC RRUs (in UMTS/LTE mode) Position ICR 1 ICR 2 NOTE Co-Cabinet of UMTS and LTE 6 RRU3804s 6 RRU3201s In triple-mode scenarios, when only one ICR is used, two BBUs are installed separately in two IMB03s. BBU 0 (primary BBU) is installed in the upper IMB03, and BBU 1 (secondary BBU) is installed in the lower IMB03, as shown in Figure 3-24. Figure 3-24 Triple-mode scenario (6 DC RRUs) Table 3-23 6 DC RRUs (in GSM/UMTS/LTE mode) GU+LTE 3 RRU3908s 3 RRU3201s GL+UMTS 3 RRU3908s 3 RRU3804s Position Upper layer Lower layer NOTE In triple-mode scenarios, when two ICRs are used, two BBUs are installed separately in two IMB03s. BBU 0 (primary BBU) is installed on the left IFS06, and BBU 1 (secondary BBU) is installed on the right IFS06, as shown in Figure 3-25. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 30 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-25 Triple-mode scenario (12 DC RRUs) Table 3-24 12 DC RRUs (in GSM/UMTS/LTE mode) Position ICR 1 ICR 2 GU+LTE 6 RRU3908s 6 RRU3201s GL+UMTS 6 RRU3908s 6 RRU3804s RRUs Installed Independently (IFS06+DC RRUs) In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-26 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the lower layer. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 31 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-26 DC RRUs installed on the IFS06 Height-Unrestricted Scenarios (220 V AC) This section describes the height-unrestricted scenarios with external 220 V AC power supply. In these scenarios, RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In single- or dual-mode scenarios, a single IFS06 supports a maximum of six DC RRUs, and a single site supports a maximum of 12 DC RRUs. When only three DC RRUs need to be installed, they are installed at the lower layer. l 1 IFS06+2 IMB03s+3 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 32 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-27 1 IFS06+2 IMB03s+3 DC RRUs Table 3-25 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Lower layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. l 1 IFS06+2 IMB03s+6 DC RRUs Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 33 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-28 1 IFS06+2 IMB03s+6 DC RRUs Table 3-26 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS Upper layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-27 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE Upper layer 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Table 3-28 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE Co-Cabinet of UMTS and LTE Upper layer 3 RRU3804s 3 RRU3201s 3 RRU3804s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 34 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Position UMTS LTE Co-Cabinet of UMTS and LTE Lower layer 3 RRU3804s 3 RRU3201s 3 RRU3201s l 2 IFS06s+4 IMB03s+12 DC RRUs Figure 3-29 2 IFS06s+4 IMB03s+12 DC RRUs Table 3-29 12 DC RRUs (in GSM/UMTS mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3804s 6 RRU3008s 6 RRU3804s Table 3-30 12 DC RRUs (in GSM/LTE mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3201s 6 RRU3008s 6 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 35 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-31 12 DC RRUs (in UMTS/LTE mode) Position ICR 1 ICR 2 Co-Cabinet of UMTS and LTE 6 RRU3804s 6 RRU3201s NOTE In triple-mode scenarios, when two ICRs are used, two BBUs are installed separately in two IMB03s. BBU 0 (primary BBU) is installed on the left IFS06, and BBU 1 (secondary BBU) is installed on the right IFS06, as shown in Figure 3-30. Figure 3-30 Triple-mode scenario (12 DC RRUs) Table 3-32 12 DC RRUs (in GSM/UMTS/LTE mode) Position ICR 1 ICR 2 GU+LTE 6 RRU3908s 6 RRU3201s GL+UMTS 6 RRU3908s 6 RRU3804s RRUs Installed Independently (IFS06+RRUs) l IFS06+DC RRUs In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-31 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the lower layer. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 36 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-31 DC RRUs installed on the IFS06 l IFS06+AC RRUs In this scenario, a single IFS06 supports a maximum two AC RRUs, as shown in Figure 3-32. NOTE This document uses AC RRU3908s as examples. Figure 3-32 AC RRUs installed on the IFS06 Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 37 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Height-Unrestricted Scenarios (+24 V DC) This section describes the height-unrestricted scenarios with external +24 V DC power supply. In these scenarios, DC RRUs can be installed together with an IMB03 on an IFS06 or independently on an IFS06. DC RRUs and IMB03 Installed Together (IFS06+IMB03+DC RRUs) In single- or dual-mode scenarios, a single IFS06 supports a maximum of six DC RRUs, and a single site supports a maximum of 12 DC RRUs. When only three DC RRUs need to be installed, they are installed at the lower layer. l 1 IFS06+2 IMB03s+3 DC RRUs Figure 3-33 1 IFS06+2 IMB03s+3 DC RRUs Table 3-33 3 DC RRUs Position GSM UMTS LTE GSM+UMTS/

GSM+LTE 3 RRU3008s 3 RRU3804s 3 RRU3201s 3 RRU3908s Lower layer NOTE l RRU3008s are used as examples for RRUs in GSM mode. l RRU3804s are used as examples for RRUs in UMTS mode. l RRU3201s are used as examples for RRUs in LTE mode. l RRU3908s are used as examples for RRUs in multiple modes. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 38 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation l 1 IFS06+2 IMB03s+6 DC RRUs Figure 3-34 1 IFS06+2 IMB03s+6 DC RRUs Table 3-34 6 DC RRUs (in GSM/UMTS mode) Position GSM UMTS GSM

+UMTS Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS Upper layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3804s 3 RRU3908s 3 RRU3804s 3 RRU3804s Table 3-35 6 DC RRUs (in GSM/LTE mode) Position GSM LTE Co-Cabinet of GSM+LTE and LTE Co-Cabinet of GSM and LTE Upper layer 3 RRU3008s 3 RRU3201s 3 RRU3908s 3 RRU3008s Lower layer 3 RRU3008s 3 RRU3201s 3 RRU3201s 3 RRU3201s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 39 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Table 3-36 6 DC RRUs (in UMTS/LTE mode) Position UMTS LTE Upper layer Lower layer 3 RRU3804s 3 RRU3804s 3 RRU3201s 3 RRU3201s l 2 IFS06s+4 IMB03s+12 DC RRUs Figure 3-35 2 IFS06s+4 IMB03s+12 DC RRUs Co-Cabinet of UMTS and LTE 3 RRU3804s 3 RRU3201s Table 3-37 12 DC RRUs (in GSM/UMTS mode) Position ICR 1 ICR 2 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3804s 6 RRU3008s 6 RRU3804s Table 3-38 12 DC RRUs (in GSM/LTE mode) Position ICR 1 Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3908s 6 RRU3008s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 40 DBS3900 (ICR) Installation Guide Position ICR 2 3 Information to Be Known Before the Installation Co-Cabinet of GSM

+UMTS and UMTS Co-Cabinet of GSM and UMTS 6 RRU3201s 6 RRU3201s Table 3-39 12 DC RRUs (in UMTS/LTE mode) Position ICR 1 ICR 2 Co-Cabinet of UMTS and LTE 6 RRU3804s 6 RRU3201s NOTE In triple-mode scenarios, when two ICRs are used, two BBUs are installed separately in two IMB03s. BBU 0 (primary BBU) is installed on the left IFS06, and BBU 1 (secondary BBU) is installed on the right IFS06, as shown in Figure 3-36. Figure 3-36 Triple-mode scenario Table 3-40 12 DC RRUs (in GSM/UMTS/LTE mode) Position ICR 1 ICR 2 GU+LTE 6 RRU3908s 6 RRU3201s GL+UMTS 6 RRU3908s 6 RRU3804s Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 41 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation RRUs Installed Independently (IFS06+DC RRUs) In this scenario, a single IFS06 supports three or six DC RRUs. Figure 3-37 shows the scenario where six DC RRUs are installed. When only three DC RRUs need to be installed, they are installed at the lower layer. Figure 3-37 DC RRUs installed on the IFS06 3.3 Requirements for Dimensions and Clearances This section describes the requirements for dimensions and clearances of devices to be installed. Dimensions Figure 3-38 shows the dimensions of an IFS06. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 42 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-38 Dimensions of an IFS06 Figure 3-39 shows the dimensions of an IMB03. Figure 3-39 Dimensions of an IMB03 Recommended Clearances Figure 3-40 shows the recommended clearances for installing DC RRUs. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 43 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-40 Recommended clearances (for DC RRUs) Figure 3-41 shows the recommended clearances for installing AC RRUs. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 44 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-41 Recommended clearances (for AC RRUs) NOTE When an IFS06 needs to provide the recommended clearances for used for AC RRUs, it can be installed with its left side close to a wall. Minimum Clearances Figure 3-42 shows the minimum clearances for installing DC RRUs in height-unrestricted scenarios. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 45 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-42 Minimum clearances for installing DC RRUs in height-unrestricted scenarios Figure 3-43 shows the minimum clearances for installing DC RRUs in height-restricted scenarios. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 46 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-43 Minimum clearances for installing DC RRUs in height-restricted scenarios NOTE When an IFS06 needs to provide the minimum clearances for DC RRUs, it can be installed with its rear and both sides close to walls. Figure 3-44 shows the minimum clearances for installing AC RRUs. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 47 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-44 Minimum clearances (for AC RRUs) NOTE When an IFS06 needs to provide the minimum clearances for AC RRUs, it can be installed with its rear and both sides close to walls. Clearance Requirements of Combined Cabinets Figure 3-45 shows the clearance requirements of combined cabinets. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 48 DBS3900 (ICR) Installation Guide 3 Information to Be Known Before the Installation Figure 3-45 Clearance requirements of combined cabinets Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 49 DBS3900 (ICR) Installation Guide 4 Unpacking the Equipment 4 Unpacking the Equipment This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact. Context NOTE When transporting, moving, or installing the equipment, components, or parts, you must:

Prevent them from colliding with doors, walls, shelves, or other objects. l l Wear clean gloves, and avoid touching the equipment, components, or parts with bare hands, sweat-

soaked gloves, or dirty gloves. NOTICE l After a cabinet or an BBU is unpacked, it must be powered on within 7 days. l After an RRU is unpacked, it must be powered on within 24 hours. Procedure Step 1 Check the total number of articles in each case according to the packing list. If ... Then ... The total number tallies with the packing list Go to Step 2. The total number does not tally with the packing list Find out the cause and report any missing articles to the local Huawei office. Step 2 Check the exterior of the packing case. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 50 DBS3900 (ICR) Installation Guide 4 Unpacking the Equipment If ... Then ... The outer packing is intact Go to Step 3. The outer packing is severely damaged or soaked Find out the cause and report it to the local Huawei office. Step 3 Check the type and quantity of the equipment in the cases according to the packing list. If ... Then ... Types and quantity of the article tally with those on the packing list Sign the Packing List with the customer. Either shipment shortage, wrong shipment or damaged articles. Report to the local Huawei office. CAUTION l To protect the equipment and prevent damage to the equipment, you are advised to keep the unpacked equipment and packing materials indoors, take photos of the stocking environment, packing case or carton, packing materials, and any rusted or eroded equipment, and then file the photos. l Verify that the insulation layers of all RRU cables are intact. If the insulation layers are damaged or broken, water will penetrate into the cables, which may cause damages to RRUs or human injury.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 51 DBS3900 (ICR) Installation Guide 5 Obtaining the ESN 5 Obtaining the ESN This chapter describes how to obtain the Electronic Serial Number (ESN). The ESN is a unique identifier of a Network Element (NE). Record the ESN for later commissioning of the base station before installation. Procedure Step 1 Record the ESN on the BBU. l If there is not a label on the FAN unit of the BBU, you must record the ESN and site information that is printed on a mounting ear of the BBU. Figure 5-1 shows the position of the ESN. l If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mounting ear of the BBU. In this case, you must take the label and record the site information on the side labeled Site, as shown in Figure 5-2. Figure 5-1 Obtaining the ESN (1) Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 52 DBS3900 (ICR) Installation Guide Figure 5-2 Obtaining the ESN (2) 5 Obtaining the ESN Step 2 Record the ESN on the WMPT. Figure 5-3 shows the position of the ESN. Figure 5-3 Obtaining the ESN Step 3 Report the ESN to the engineer for the commissioning of the base station. NOTE If multiple BBUs need to be configured on site, record the ESN for each BBU and report them to the engineer responsible for base station commissioning.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 53 DBS3900 (ICR) Installation Guide 6 Installation Process 6 Installation Process This section describes the process of installing the DBS3900 on an ICR. Figure 6-1 shows the installation process. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 54 DBS3900 (ICR) Installation Guide Figure 6-1 Installation process 6 Installation Process Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 55 DBS3900 (ICR) Installation Guide 7 Assembling the IFS06 7 Assembling the IFS06 This chapter describes the procedure for assembling an IFS06. Procedure Step 1 Use four M1230 bolt assemblies to secure rear feet to the main frame, with a torque of 50 Nm

(442.54 lbfin.), as shown in Figure 7-1. NOTE Place a foam pad or cardboard under the IFS06 to prevent any damage to the paint. Figure 7-1 Installing the rear feet Step 2 Turn over the IFS06 and use six M1230 bolt assemblies to secure front feet to the main frame, with a torque of 50 Nm (442.54 lbfin.), as shown in Figure 7-2. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 56 DBS3900 (ICR) Installation Guide Figure 7-2 Installing the front feet 7 Assembling the IFS06 Step 3 Optional: In height-restricted scenarios, move the adjustable beams from the positions marked 2 m (6.56 ft) to the positions marked 1.8 m (5.91 ft), as shown in Figure 7-3. NOTE The adjustable beams do not need to be moved in height-unrestricted scenarios. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 57 DBS3900 (ICR) Installation Guide 7 Assembling the IFS06 Figure 7-3 Moving the adjustable beam Step 4 Insert the tabs of the cable trays into the slots on the columns of the IFS06, as shown in Figure 7-4. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 58 DBS3900 (ICR) Installation Guide Figure 7-4 Installing cable trays 7 Assembling the IFS06

(1) Slots for installing cable trays in height-unrestricted scenarios

(2) Slots for installing cable trays in height-restricted scenarios Step 5 Secure the attachment plates for the GPS surge protector onto the upper adjustable beam, as shown in Figure 7-5. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 59 DBS3900 (ICR) Installation Guide 7 Assembling the IFS06 Figure 7-5 Installing the attachment plates for the GPS surge protector

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 60 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 8 Installing the IFS06 About This Chapter This chapter describes the procedures for installing the IFS06 on the concrete floor and ESD floor. 8.1 Installing the IFS06 on the Concrete Floor This section describes the procedure for installing the IFS06 on the concrete floor. 8.2 Installing the IFS06 on the ESD Floor This section describes the procedure for installing the IFS06 on the ESD floor. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 61 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 8.1 Installing the IFS06 on the Concrete Floor This section describes the procedure for installing the IFS06 on the concrete floor. Procedure Step 1 Place the marking-off template on the floor. Then use a marker to mark four anchor points, as shown in Figure 8-1. Figure 8-1 Marking anchor points

(1) Wall

(2) Front

(3) Left Step 2 Drill holes at the anchor points and install expansion bolt assemblies in the holes, as shown in the following figure. CAUTION Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. NOTE Generally, the concrete floor is solid and smooth. Therefore, you can use the center punch to help locate the drill bit. If the conditions of the floor allow direct drilling, skip this step. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 62 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 Figure 8-2 Drilling a hole and inserting an expansion bolt assembly

(1) M12x60 bolts

(2) Spring washer

(3) Flat washer

(4) Expansion tube 1. Use a hammer drill with a 16 drill bit to drill holes with a depth ranging from 55 mm

(2.05 in.) to 60 mm (2.36 in.). 2. Use a vacuum cleaner to clear the dust out from inside and around the holes, and measure the distances between holes. If any of the hole is beyond the acceptable range, mark a new anchor point and drill a new hole. Tighten an expansion bolt slightly and place it vertically into each hole. 3. 4. Hit the expansion bolt with a rubber mallet until the expansion tube completely enters the 5. hole. Turning the M12x60 bolt, spring washer, and flat washer counterclockwise, and remove them in sequence. CAUTION After dismantling the expansion bolt assembly, ensure that the top of the expansion tube is level with the concrete floor. Otherwise, the cabinet cannot be installed on the concrete floor evenly and securely. Step 3 Place the IFS06, as shown in Figure 8-3. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 63 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 1. 2. 3. Place the IFS06, with the mounting holes on the IFS06 aligned with the anchor points on the floor. Lead each bolt through the spring washer, flat washer, and insulation washer in sequence. Then install the bolts in the mounting holes on the IFS06. Partially tighten the bolts into the expansion tubes. Figure 8-3 Installing the bolts

(1) M12x60 bolt

(2) Spring washer

(3) Flat washer

(4) Insulation washer Step 4 Use a level to measure all sides of the frame and use spacers to level the frame if necessary, as shown in Figure 8-4. NOTE Spacers must be added at the positions where the expansion bolt assemblies are installed. Figure 8-4 Checking and leveling the IFS06

(1) Level

(2) Spacer Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 64 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 Step 5 Use a socket wrench to tighten the bolts to 50 Nm (442.54 lbfin.), as shown in Figure 8-5. Figure 8-5 Tightening the bolts

----End 8.2 Installing the IFS06 on the ESD Floor This section describes the procedure for installing the IFS06 on the ESD floor. Context The following figure shows the support for installing the ESD floor. Figure 8-6 Support for installing the ESD floor

(1) Mounting holes for the ESD floor (2) Support

(3) Mounting holes for the concrete floor There are three models of ESD floor supports, all of which are adjustable. The heights of ESD floors supported by the three models are listed in the following table. Table 8-1 Heights of the two types of supports Component Applicable Height Remark Model I Model II 200 (7.87 in.) H 270 (10.63 in.) l The height can be adjusted within the adjustable range. 270 (10.63 in.) H 410 (16.14 in.) l When the height of the ESD floor is the same as the maximum or minimum value of the adjustable ranges, the model with a smaller adjustable range is preferred. For example, when the height of the Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 65 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 Component Applicable Height Remark Model III 410 (16.14 in.) H 700 (27.56 in.) ESD floor is 410 mm (16.14 in.), model II is preferentially selected. NOTE The height of an ESD floor is the spacing between the concrete floor and the upper surface of the ESD floor. Procedure Step 1 Place the marking-off template on the ESD floor. Then use a marker to mark four anchor points, as shown in Figure 8-7. Figure 8-7 Marking anchor points

(1) Wall

(2) Front

(3) Left Step 2 Drill holes on the ESD floor, as shown in Figure 8-8. Ensure that the hammer drill penetrates the ESD floor. NOTE Use a vacuum cleaner to clear the dust out from inside and around all the holes, and measure the distances between holes. If any hole does not meet the requirements, mark new anchor points and drill new holes. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 66 DBS3900 (ICR) Installation Guide Figure 8-8 Drilling holes 8 Installing the IFS06 Step 3 Drill holes on the concrete floor, as shown in Figure 8-9. 1. Place the support under the ESD floor, and use M12x70 bolts to fix the ESD floor to the support temporarily. 2. According to the support's mounting hole for the concrete floor, use a marker to mark the positions for installing expansion bolts. 3. Use a measuring tape to measure the inter-hole spacing, and ensure that the center-to-center separations of the holes are consistent. Figure 8-9 Fixing the support to the ESD floor

(1) Mounting holes on the ESD floor

(2) ESD floor

(3) Mounting holes for the concrete floor Step 4 Drill holes at the anchor points and install expansion bolt assemblies in the holes, as shown in the following figure. CAUTION Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. NOTE Generally, the concrete floor is solid and smooth. Therefore, you can use the center punch to help locate the drill bit. If the conditions of the floor allow direct drilling, skip this step. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 67 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 Figure 8-10 Drilling a hole and inserting an expansion bolt assembly

(1) M12x60 bolts

(2) Spring washer

(3) Flat washer

(4) Expansion tube 1. Use a hammer drill with a 16 drill bit to drill holes with a depth ranging from 55 mm

(2.05 in.) to 60 mm (2.36 in.). 2. Use a vacuum cleaner to clear the dust out from inside and around the holes, and measure the distances between holes. If any of the hole is beyond the acceptable range, mark a new anchor point and drill a new hole. Tighten an expansion bolt slightly and place it vertically into each hole. 3. 4. Hit the expansion bolt with a rubber mallet until the expansion tube completely enters the 5. hole. Turning the M12x60 bolt, spring washer, and flat washer counterclockwise, and remove them in sequence. CAUTION After dismantling the expansion bolt assembly, ensure that the top of the expansion tube is level with the concrete floor. Otherwise, the cabinet cannot be installed on the concrete floor evenly and securely. Step 5 Use a level to measure all sides of the frame and use spacers to level the frame if necessary, as shown in Figure 8-11. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 68 DBS3900 (ICR) Installation Guide 8 Installing the IFS06 Figure 8-11 Checking and leveling the IFS06

(1) Level

(2) Spacer Step 6 Use a socket wrench to tighten the bolts to 50 Nm (442.54 lbfin.), as shown in Figure 8-12. Figure 8-12 Tightening the bolts

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 69 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs 9 Installing the Main Brackets for RRUs About This Chapter This chapter describes the procedures for installing the main brackets for DC RRUs and AC RRUs. 9.1 Introduction to the Bracket Assembly This section describes the bracket assembly. 9.2 Installing the Main Brackets for DC RRUs This section describes the procedure for installing the main brackets for DC RRUs. 9.3 Installing the Main Brackets for AC RRUs This section describes the procedure for installing the main brackets for AC RRUs. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 70 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs 9.1 Introduction to the Bracket Assembly This section describes the bracket assembly. Bracket assembly has three kinds, Figure 9-1, Figure 9-2 and Figure 9-3 shows a bracket assembly. NOTE Only the main bracket is required for installing an RRU on an IFS06. Figure 9-1 Bracket assembly (1)

(1) Auxiliary bracket

(2) Dual-headed nut

(3) Main bracket

(4) Hoist clamp on the main bracket Figure 9-2 Bracket assembly (2)

(1) Plastic cap

(2) Standard M10 nut

(3) Spring washer

(4) Thick flat washer

(5) M10x150 bolt

(6) Auxiliary bracket

(7) Hoist clamp on the main bracket

(8) Main bracket Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 71 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs Figure 9-3 Bracket assembly (3)

(1) Plastic cap

(2) Standard M10 nut (3) Spring washer

(4) Thick flat washer

(5) Square-neck bolt

(6) Hoist clamp on the main bracket

(7) Main bracket

(8) Inner hexagon screw

(9) Pole installation bracket

(10) Auxiliary bracket 9.2 Installing the Main Brackets for DC RRUs This section describes the procedure for installing the main brackets for DC RRUs. Context NOTICE l Use the M10x50 bolts delivered with the IFS06 to install the main brackets for DC RRUs. l Install RRUs in the sequence from bottom to top and from left to right. l Ensure that the contact pieces on the main brackets are locked before RRUs are mounted. l Rubber washers are easily compressed or broken, whereas do not need to be replaced. Procedure l Height-unrestricted scenarios Install the main brackets according to the label on the IFS06, as shown in Figure 9-4. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 72 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs Figure 9-4 Installing the main brackets in height-unrestricted scenarios

(1) Spring washer

(2) Rubber washer l Height-restricted scenarios Use one of your fingers to push and remove the rubber plugs on the beam and install the main brackets according to the label on the IFS06, as shown in Figure 9-5. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 73 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs Figure 9-5 Installing the main brackets in height-restricted scenarios

(1) Spring washer

(2) Rubber washer

----End 9.3 Installing the Main Brackets for AC RRUs This section describes the procedure for installing the main brackets for AC RRUs. Context NOTICE l Use the M10x50 bolts delivered with the IFS06 to install the main brackets for AC RRUs. l Install RRUs in the sequence from bottom to top and from left to right. l Ensure that the contact pieces on the main brackets are locked before RRUs are mounted. l Rubber washers are easily compressed or broken, whereas do not need to be replaced. Procedure l Height-unrestricted scenarios Install the main brackets according to the label on the IFS06, as shown in Figure 9-6. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 74 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs Figure 9-6 Installing the main brackets in height-unrestricted scenarios

(1) Spring washer

(2) Rubber washer l Height-restricted scenarios Use one of your fingers to push and remove the rubber plugs on the beam and install the main brackets according to the label on the IFS06, as shown in Figure 9-7. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 75 DBS3900 (ICR) Installation Guide 9 Installing the Main Brackets for RRUs Figure 9-7 Installing the main brackets in height-restricted scenarios

(1) Spring washer

(2) Rubber washer

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 76 DBS3900 (ICR) Installation Guide 10 Installing the GPS Surge Protector 10 Installing the GPS Surge Protector This chapter describes the procedure for installing the GPS surge protector. Context Two types of GPS surge protector can be installed on the IFS06, as shown in Figure 10-1. NOTE l One or two GPS surge protectors can be installed on the IFS06, depending on the onsite requirements. l GPS surge protector A does not require a PGND cable. Figure 10-1 GPS surge protector

(1) GPS surge protector A

(2) GPS surge protector B Procedure Step 1 Remove the nut and toothed washer from the type N female connector of the GPS clock signal cable, as shown in Figure 10-2. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 77 DBS3900 (ICR) Installation Guide 10 Installing the GPS Surge Protector Figure 10-2 Removing the nut and toothed washer Step 2 Fix the type N female connector of the GPS clock signal cable to the attachment plate, as shown in Figure 10-3. Figure 10-3 Installing the type N female connector Step 3 Secure the GPS surge protector to the attachment plate. Partially tighten the GPS surge protector with hands, and use an adjustable wrench to tighten it, as shown in Figure 10-4. Figure 10-4 Installing the GPS surge protector Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 78 DBS3900 (ICR) Installation Guide 10 Installing the GPS Surge Protector Step 4 Connect the OT terminal at one end of the PGND cable for the GPS surge protector to the ground terminal on the GPS surge protector, and the other end of the PGND cable to the ground bar on the IFS06, as shown in Figure 10-5. Figure 10-5 Installing the PGND cable for the GPS surge protector Step 5 Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Step 6 Label the installed cables according to the instructions in Attaching a Sign Plate Label.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 79 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 11 Installing the IMB03 About This Chapter This chapter describes the procedure for installing the IMB03. 11.1 Installing the Upper IMB03 Independently This section describes the procedure for installing the upper IMB03 independently. 11.2 Installing the Lower IMB03 Independently This section describes the procedure for installing the lower IMB03 independently. 11.3 Installing the IMB03s on the Upper and Lower Levels This section describes the procedure for installing the IMB03s on the upper and lower levels. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 80 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 11.1 Installing the Upper IMB03 Independently This section describes the procedure for installing the upper IMB03 independently. Context NOTE The operations in this section apply to the scenario where only the upper IMB03 is required. Procedure Step 1 Use one of your fingers to push and remove the two protective plates on the top of the IMB03, as shown in Figure 11-1. Figure 11-1 Removing the protective plates NOTE After all cables are installed, if there is spare space in the cable holes, cut the protective plates to an appropriate shape to seal the cable holes. Step 2 Install two mounting ears horizontally on both sides of the IMB03 and tighten the three screws on each side to 1.2 Nm (10.62 lbfin.), as shown in Figure 11-2. Figure 11-2 Installing mounting ears horizontally Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 81 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 Step 3 Place the IMB03 on the feet and tighten the two screws on both feet to secure the IMB03 onto the ICR, with a torque of 3 Nm (26.55 lbfin.), as shown in Figure 11-3. Figure 11-3 Securing the IMB03 to the feet of the ICR

----End 11.2 Installing the Lower IMB03 Independently This section describes the procedure for installing the lower IMB03 independently. Context NOTE The operations in this section apply to the scenario where only the lower IMB03 is required. Procedure Step 1 Use one of your fingers to push and remove the two protective plates on the top of the lower IMB03, as shown in Figure 11-4. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 82 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 Figure 11-4 Removing the protective plates NOTE After all cables are installed, if there is spare space in the cable holes, cut the protective plates to an appropriate shape to seal the cable holes. Step 2 Install two mounting ears vertically on both sides of the IMB03 and tighten the three screws on each side to 1.2 Nm (10.62 lbfin.), as shown in Figure 11-5. Figure 11-5 Installing mounting ears vertically Step 3 Place the IMB03 in between the feet and tighten the two screws on both feet to secure the IMB03 onto the ICR, with a torque of 3 Nm (26.55 lbfin.), as shown in Figure 11-6. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 83 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 Figure 11-6 Securing the IMB03 to the feet of the ICR

----End 11.3 Installing the IMB03s on the Upper and Lower Levels This section describes the procedure for installing the IMB03s on the upper and lower levels. Context NOTE To install two IMB03s on an ICR, install the lower IMB03 first and then the upper IMB03. Procedure Step 1 Use one of your fingers to push and remove the two protective plates on the top of the lower IMB03, as shown in Figure 11-7. Figure 11-7 Removing the protective plates Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 84 DBS3900 (ICR) Installation Guide NOTE 11 Installing the IMB03 After all cables are installed, if there is spare space in the cable holes, cut the protective plates to an appropriate shape to seal the cable holes. Step 2 Install two mounting ears vertically on both sides of the IMB03 and tighten the three screws on each side to 1.2 Nm (10.62 lbfin.), as shown in Figure 11-8. Figure 11-8 Installing mounting ears vertically Step 3 Place the IMB03 in between the feet and tighten the two screws on both feet to secure the IMB03 onto the ICR, with a torque of 3 Nm (26.55 lbfin.), as shown in Figure 11-9. Figure 11-9 Securing the IMB03 to the feet of the ICR Step 4 Use one of your fingers to push and remove the two protective plates on the top and two protective plates at the bottom of the upper IMB03, as shown in Figure 11-10. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 85 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 Figure 11-10 Removing the protective plates from the upper IMB03 Step 5 Install two mounting ears horizontally on both sides of the IMB03 and tighten the three screws on each side to 1.2 Nm (10.62 lbfin.), as shown in Figure 11-11. Figure 11-11 Installing mounting ears horizontally Step 6 Place the IMB03 on the feet and tighten the two screws on each foot to secure the IMB03 onto the ICR, with a torque of 3 Nm (26.55 lbfin.), as shown in Figure 11-12. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 86 DBS3900 (ICR) Installation Guide 11 Installing the IMB03 Figure 11-12 Securing the IMB03 to the feet of the ICR

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 87 DBS3900 (ICR) Installation Guide 12 Installing the Equipotential Cable and PGND Cable 12 Installing the Equipotential Cable and PGND Cable Prerequisites This chapter describes the procedures for installing the equipotential cable and PGND cable. A PGND cable and an equipotential cable need to be prepared onsite. Table 12-1 lists the specifications of a PGND cable and an equipotential cable. Table 12-1 Cable specifications Cable Connector at One End Connector at the Other End PGND cable OT terminal (M8) Depending on the external ground bar Cross-Sectional Area of the Cable 16 mm2 (0.025 in.2) OT terminal (M6) OT terminal (M6) 16 mm2 (0.025 in.2) OT terminal (M4) OT terminal (M4) 6 mm2 (0.009 in.2) Equipotential cable between the IFS06 and the IMB03 Equipotential cable between the upper and lower IMB03s Procedure Step 1 Cut the cable to a length suitable for the actual cable route. Step 2 Add an OT terminal to each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. Step 3 Install the PGND cable and equipotential cable, as shown in Figure 12-1. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 88 DBS3900 (ICR) Installation Guide 12 Installing the Equipotential Cable and PGND Cable 1. Connect one end of the PGND cable to ground bar 2 on the IFS06. 2. Connect one end of the equipotential cable to ground bar 1 on the IFS06 and the other end to the ground bar on the upper IMB03. 3. Connect one end of the equipotential cable to the ground bar on the upper IMB03 and the other end to the ground bar on the lower IMB03. Figure 12-1 Installing a PGND cable and an equipotential cable

(1) Ground bar 1

(2) Ground bar 2

(3) Lower IMB03

(4) Upper IMB03 Step 4 Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Step 5 Label the installed cables according to the instructions in Attaching a Cable-Tying Label.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 89 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 13 Installing Components in the IMB03 About This Chapter This chapter describes the procedures for installing components in the IMB03. 13.1 Components in an IMB03 This section describes the components to be installed in an IMB03. 13.2 Installing the BBU This chapter describes the procedure for installing the BBU in the IMB03. 13.3 Installing the DCDU-03B, DCDU-11B or DCDU-12B This chapter describes the procedure for installing the DCDU-03B, DCDU-11B or DCDU-12B in the IMB03. 13.4 (Optional) Installing the DC/DC Power System This section describes the procedure for installing the DC/DC power system in the IMB03. 13.5 (Optional) Installing the AC/DC Power System This section describes the procedure for installing the AC/DC power system in the IMB03. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 90 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 13.1 Components in an IMB03 This section describes the components to be installed in an IMB03. See 3.2 Installation Scenarios for the number of required IMB03 subracks and the components to be installed in each IMB03 subrack. Then see the slot assignment label in the IMB03 for the component installation positions. Figure 13-1 shows the scenario where the DCDU, BBU, and power devices are installed in two IMB03 subracks. Figure 13-1 IMB03 slot assignment

(1) DCDU

(2) BBU

(3) Power device 13.2 Installing the BBU This chapter describes the procedure for installing the BBU in the IMB03. Context NOTE l The BBU3900/BBU3910 has a left-in-right-out ventilation channel. It can be stacked with equipment using a left-in-right-out ventilation channel but cannot be stacked with equipment using a right-in-left-out ventilation channel. l For an indoor application, the BBU3900/BBU3910 can be installed in a standardized indoor equipment room but cannot be installed in an equipment room using direct ventilation. l For an outdoor application, the BBU3900/BBU3910 can be installed in a cabinet using a heat exchanger but cannot be installed in a cabinet using direct ventilation. For the specific cabinet types, see the related hardware documentation. Procedure Step 1 Install a mounting ear reversely on each side of the BBU, as shown in Figure 13-2. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 91 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 1. Remove the four M4 screws from the mounting ear on each side of the BBU. 2. Install the mounting ears reversely and tighten the four M4 screws on each of the mounting ears, with a torque of 1.2 Nm (10.62 lbfin.). Figure 13-2 Installing mounting ears reversely Step 2 Install the BBU into the corresponding slot in the IMB03. Then tighten the four M6x16 screws on the mounting ears to 3 Nm (26.55 lbfin.), as shown in Figure 13-3. Figure 13-3 Installing the BBU

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 92 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 13.3 Installing the DCDU-03B, DCDU-11B or DCDU-12B This chapter describes the procedure for installing the DCDU-03B, DCDU-11B or DCDU-12B in the IMB03. Context Procedure The method of installing the DCDU-11B and DCDU-12B is the same as the method of installing the DCDU-03B. This section uses the DCDU-03B as an example. Step 1 Move the mounting ears on the DCDU-03B, as shown in Figure 13-4. 1. Remove the four M4 screws from the mounting ear on each side of the DCDU-03B. 2. Move each mounting ear backwards by one hole and tighten the four removed M4 screws on the mounting ear to 1.2 Nm (10.62 lbfin.). Figure 13-4 Installing the DCDU-03B Step 2 Install the DCDU-03B into the corresponding slot in the IMB03. Then tighten the four M6x16 screws on the mounting ears to 3 Nm (26.55 lbfin.), as shown in Figure 13-5. Figure 13-5 Installing the DCDU-03B Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 93 DBS3900 (ICR) Installation Guide

----End 13 Installing Components in the IMB03 13.4 (Optional) Installing the DC/DC Power System This section describes the procedure for installing the DC/DC power system in the IMB03. Context Procedure The DC/DC power system needs to be installed in the scenarios with +24 V DC power supply. Step 1 Move the mounting ears on the DC/DC power system to the middle holes, as shown in Figure 13-6. 1. Remove the screws on the mounting ears on both sides of the DC/DC power system. 2. Move the mounting ears backwards to the middle holes. 3. Tighten the mounting ear on each side of the DC/DC power system to 1.2 Nm (10.62 lbfin.). Figure 13-6 Moving the mounting ears to the middle holes Step 2 Install the DC/DC power system into the corresponding slot in the lower IMB03. Then tighten the four M6x16 panel screws to 3 Nm (26.55 lbfin.), as shown in Figure 13-7. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 94 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 Figure 13-7 Installing the DC/DC power system Step 3 Cut the PGND cable to a length suitable for the actual cable route. Step 4 Add an OT terminal to each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. Step 5 Connect the OT terminal (M6) at one end of the PGND cable to the DC/DC power system and the OT terminal (M6) at other end to the IFS06, as shown in Figure 13-8. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 95 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 Figure 13-8 Installing the PGND cable for the DC/DC power system

(1) OT terminal (M6)

----End 13.5 (Optional) Installing the AC/DC Power System This section describes the procedure for installing the AC/DC power system in the IMB03. Context Procedure The AC/DC power system needs to be installed in the scenarios with 220 V AC power supply. Step 1 Install the AC/DC power system into the corresponding slot in the lower IMB03. Then tighten the four M6x16 panel screws to 3 Nm (26.55 lbfin.), as shown in Figure 13-9. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 96 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 Figure 13-9 Installing the AC/DC power system Step 2 Cut the PGND cable to a length suitable for the actual cable route. Step 3 Add an OT terminal to each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. Step 4 Connect the OT terminal (M6) at one end of the PGND cable to the AC/DC power system and the OT terminal (M6) at other end to the IFS06, as shown in Figure 13-10. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 97 DBS3900 (ICR) Installation Guide 13 Installing Components in the IMB03 Figure 13-10 Installing the PGND cable for the AC/DC power system

(1) OT terminal (M6) Step 5 Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Step 6 Label the installed cable according to the instructions in Attaching a Cable-Tying Label.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 98 DBS3900 (ICR) Installation Guide 14 Installing RRUs 14 Installing RRUs About This Chapter This chapter describes the procedures for installing DC and AC RRUs. 14.1 Installing DC RRUs This section describes the procedure for installing DC RRUs. 14.2 Installing AC RRUs This section describes the procedure for installing AC RRUs. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 99 DBS3900 (ICR) Installation Guide 14 Installing RRUs 14.1 Installing DC RRUs This section describes the procedure for installing DC RRUs. Context Procedure The method of installing DC RRUs in the IFS06+IMB03+RRU scenario is the same as the method of installing DC RRUs in the IFS06+RRU scenario. This section uses the IFS06+RRU scenario as an example. NOTE l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation. l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU. l The bolts used for installing an attachment plate on one side of an RRU are the bolts removed from the attachment plate at the rear of the RRU. Step 1 Interchange the attachment plate and stainless steel screws at the rear of the RRU and the cover plate and plastic screws on one side of the RRU, as shown in Figure 14-1. Figure 14-1 Interchanging the attachment plate at the rear of the RRU with the cover plate on one side of the RRU 1. Use a hex key wrench to remove the attachment plate from the rear of the RRU. 2. Optional: Remove the cover plate from one side of the RRU, and use a Phillips screwdriver to remove the plastic screws from the RRU. NOTE The plastic screws of some RRUs do not need to be removed. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 100 DBS3900 (ICR) Installation Guide 14 Installing RRUs 3. Optional: Install the plastic screws onto the rear of the RRU, and use a torque screwdriver 4. 5. to tighten the screws to 0.25 Nm (2.21 lbfin.). Install the cover plate onto the rear of the RRU. Install the attachment plate onto one side of the RRU, and use a torque screwdriver to tighten the stainless steel screws on the attachment plate to 5 Nm (44.25 lbfin.). Step 2 Install the RRU onto the main bracket, as shown in Figure 14-2. NOTICE Do not step on the IMB03 when installing an RRU. Figure 14-2 Installing the RRU onto the main bracket Step 3 Repeat Step 1 and Step 2 to install more RRUs, as shown in Figure 14-3. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 101 DBS3900 (ICR) Installation Guide 14 Installing RRUs Figure 14-3 Installing multiple RRUs

----End 14.2 Installing AC RRUs This section describes the procedure for installing AC RRUs. Context NOTE l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation. l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU. Procedure Step 1 Install the AC RRU onto the main bracket, as shown in Figure 14-4. NOTE When installing AC RRUs, install the lower RRU first and then the upper RRU. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 102 DBS3900 (ICR) Installation Guide 14 Installing RRUs Figure 14-4 Installing AC RRUs onto the main brackets

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 103 DBS3900 (ICR) Installation Guide 15 Installing Cables 15 Installing Cables About This Chapter This chapter describes the procedure and precautions for installing and routing all ICR cables. 15.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. 15.2 Cable Connections This section describes the cable connections for scenarios with various power supplies. 15.3 Cable Installation Process This section describes the process of installing ICR cables. 15.4 Cable Routes This section describes the cable routes. 15.5 Installing PGND Cables for RRUs This section describes the procedure for installing PGND cables for RRUs. 15.6 Installing the BBU Power Cable This section describes the procedure for installing the BBU power cable. 15.7 Installing Input Power Cables This section describes the procedure for installing input power cables. 15.8 (Optional) Installing the DCDU Power Cable and Monitoring Signal Cable This section describes the procedures for installing the DCDU power cable and monitoring signal cable for the scenarios with 220 V AC or +24 V DC power supply. 15.9 Installing RRU Power Cables This section describes the procedures for installing RRU power cables, which feed DC power to RRUs. 15.10 (Optional) Installing BBU Inter-connection Cable This section describes the procedure for installing inter-BBU signal cables for a base station. 15.11 Installing Transmission Cables This chapter describes the procedures and precautions for installing transmission cables. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 104 DBS3900 (ICR) Installation Guide 15 Installing Cables 15.12 Installing CPRI Optical Cables This section describes the procedure for installing CPRI optical cables, which transmit CPRI signals between a BBU and RRUs. 15.13 Installing RF Jumpers This section describes the procedure for installing RF jumpers. 15.14 Installing the GPS Clock Signal Cable This section describes the procedure and precautions for installing a GPS clock signal cable. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 105 DBS3900 (ICR) Installation Guide 15 Installing Cables 15.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. NOTE If a cable listed below is not required, skip the routing requirements of the cable. General Cabling Requirements Requirements for Bending Radius l The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.), and the bending radius of the 5/4'' feeder must be more than 380 mm (14.96 in.). l The bending radius of the 1/4'' jumper must be more than 35 mm (1.38 in.). The bending radius of the super-flexible 1/2'' jumper must be more than 50 mm (1.97 in.), and the bending radius of the ordinary 1/2'' jumper must be more than 127 mm (5 in.). l The bending radius of the power cable or PGND cable must be at least three times the diameter of the cable. l The bending radius of a fiber optic cable is at least 20 times the diameter of the fiber optic cable, and the minimum bending radius of the breakout cable at each end of the fiber optic cable is 30 mm (1.18 in.). l The bending radius of the E1/T1 cable must be at least three times the diameter of the cable. l The bending radius of the signal cable must be at least five times the diameter of the cable. Requirements for Cable Binding l The same types of cable must be bound together. l Different types of cable must be separately routed with the minimum spacing of 30 mm

(1.18 in.) and cannot be entangled. l The cables must be bound tightly and neatly. The sheaths of the cables must not be damaged. l Cable ties are installed in the same direction, and those at the same horizontal line must be in a straight line. l The excess of indoor cable ties is trimmed off, and the excess of outdoor cable ties allows about 5 mm (0.2 in.), without remaining rough edges. l Labels or nameplates must be attached to both ends, joints, or turns of cables after they are installed. Security Requirements l Cables should be placed away from sharp objects or wall burrs. If these positions are inevitable, protect the cables with protection pipes. l Cables must be routed away from heat sources, or heat-insulation materials are added between cables and heat sources. l Sufficient slack (recommended for about 0.1 m [0.33 ft]) is provided in cables at turns or the position close to a device, facilitating cable and device maintenance. Indoor Cabling Requirements l Cables are routed indoors through the feeder window. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 106 DBS3900 (ICR) Installation Guide 15 Installing Cables l Drip loops must be made outside the feeder window, and the requirements for the minimum bending radius are met. l When cables are routed indoors, engineers are required indoors for cooperation. l The feeder window must be waterproofed. Outdoor Cabling Requirements l Cables routed outdoors must be led through a pipe when they may be damaged. l AC power cables, transmission cables, and cables buried in the ground must be protected. l If cables at the cabinet bottom need to be routed through a pipe along the ground, lead the pipe into the cabinet base for about 30 mm (1.18 in.) to 50 mm (1.97 in.), not into the cabinet. Block the pipe with waterproof tape or silicon gel, and secure the pipe to the cable hole at the cabinet bottom with metal piece. l If cables at the cabinet bottom need to be routed through a pipe along the metal cable trough, do not lead the pipe into the cabinet base. The cable trough must be sealed and routed through the cable hole at the cabinet bottom. l When routing RRU cables, ensure that the highest positions of the routes of all RRU cables

(except RF cables and AISG cables) must be lower than the bottom of the RRU. l Cables are secured with cable clips. l Cables are routed neatly along the specified cabling direction and secured with cable clips. l The positions for cable clips are determined onsite. For example, the cable clips for the 7/8" feeder are installed at the spacing of 1.5 m (4.92 ft) to 2 m (6.56 ft) in the same direction, and the cable clips for the power cables are installed at the spacing of 1.5 m (4.92 ft) to 2 m (6.56 ft) in the same direction. l Cable clips must be vertical with cables, and the cables in a cable clip must be parallel. l After routing cables neatly and correctly, tighten the screws on cable clips. Secure cables on the cable tray, as shown in Figure 15-1. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 107 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-1 Securing cables on the cable tray Secure cables on the tower, as shown in Figure 15-2. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 108 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-2 Securing cables on the tower Special Cabling Requirements Cabling Requirements for Power Cables l Power cables must be installed in the position specified in engineering design documents. l If the length of power cables is insufficient, replace the cables rather than adding connectors or soldering joints to lengthen the cables. l Cables must be routed by only qualified and trained personnel before all preparations are made. l Cables are routed in an untangled and orderly fashion. l If DC power cables need to be routed on the tower platform, lay out the cables on the guardrail with the shortest distance and route the cables along the guardrail. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 109 DBS3900 (ICR) Installation Guide 15 Installing Cables l If DC power cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables. Cabling Requirements for PGND Cables l PGND cables for the base station must be connected to the same ground bar. l PGND cables must be buried in the ground or routed indoors. They should not be routed overhead before they are led into the equipment room. l The exterior of the coaxial wire and the shield layer of the shielded cable must have proper electrical contact with the metal surface of the equipment to which they are connected. l PGND cables and signal cables must be installed in an untangled and orderly fashion. A certain distance must be reserved between them to prevent interference from each other. l Fuses or switches must not be installed on the PGND cables. l Other devices must not be used for electrical connections of the PGND cables. l All the metal parts in the housing of the equipment must be reliably connected to the ground terminal. Cabling Requirements for E1 Cables l E1 cables must not cross power cables, PGND cables, or RF cables when routed. If transmission cables are routed with power cables, PGND cables, or RF cables in parallel, the spacing between them must be greater than 30 mm (1.18 in.). l E1 cables are routed straightly and bound neatly with cable ties. l Sufficient slack is provided in E1 cables at turns. l E1 cables cannot be squeezed by the cabinet door when routed through the cabinet, as shown in Figure 15-3. Figure 15-3 E1 cables routed through the cabinet Cabling Requirements for Fiber Optic Cables l Fiber optic cables must be routed by at least three qualified and trained personnel before all preparations are made. l Fiber optic cables are used within the temperature range of -40C to 60C. If the current temperature is out of the range, make protection measures or route the cables again. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 110 DBS3900 (ICR) Installation Guide 15 Installing Cables l Cables are routed in an untangled and orderly fashion. l Do not bind fiber optic cables at turns. l Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the cables away from sharp objects. l When fiber optic cables are routed, the excess of the cables must be coiled around special devices, such as a fiber coiler. l An unarmored fiber optic cable must be bound using binding straps. If a fiber optic patch cord needs to be secured in a cabinet or a piece of equipment, use binding straps to bind it and then use cable ties to secure the binding straps to the cabinet or equipment. Ensure that the fiber optic cables can flexibly move in the cable ties. Do not bend the fiber optic cables sharply. The following figure shows how to bind the fiber optic cables correctly. Figure 15-4 Binding fiber optic cables l When coiling fiber optic cables, apply even strength. Do not bend the cables with force. l Vacant optical connectors must be covered with dustproof caps. l Fiber optic cables cannot be squeezed by the cabinet door when routed through the cabinet, as shown in Figure 15-5, Figure 15-6 and Figure 15-7. Figure 15-5 CPRI fiber optic cables routed through the cabinet (1) Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 111 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-6 CPRI fiber optic cables routed through the cabinet (2) Figure 15-7 FE/GE cables routed through the cabinet l If fiber optic cables need to be routed on the tower platform, lay out the cables on the guardrail with the shortest distance and route the cables along the guardrail. l If fiber optic cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables. l If the fiber optic cables close to a device are too long, coil the excess of the cables and secure them on the tower. 15.2 Cable Connections This section describes the cable connections for scenarios with various power supplies. 15.2.1 Cable Connections (-48 V DC) This section describes the cable connections for the scenarios with -48 V DC power supply. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 112 DBS3900 (ICR) Installation Guide NOTE 15 Installing Cables l Cable connections for the scenario with the DCDU-11B installed are the same as those for the scenario with the DCDU-03B installed. This section uses the cable connections for the latter scenario as an example. l For the connections of CPRI optical cables, see section "CPRI Cable Connections" in the BBU3900 Hardware Description. l For the connections of transmission cables, see section "Transmission Cable Connections" in the BBU3900 Hardware Description. Figure 15-8 shows and Table 15-1 lists the cable connections for a single- or dual-mode base station supplied with -48 V DC power. Figure 15-8 Cable connections for a single- or dual-mode base station Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 113 DBS3900 (ICR) Installation Guide Table 15-1 Cable description No. Cable One End Connecto r Installation Position P1 and P2 External input power cable OT terminal P3 to P14 RRU power cable OT terminal P15 P16 BBU power cable OT terminal GPS clock signal cable SMA male connector RTN(+) and NEG(-) terminals on the DCDU LOAD0 to LOAD5 terminals on the DCDU LOAD6 terminal on the DCDU GPS port on the USCU in the BBU P17 GPS jumper Type N male connector Surge port on the GPS surge protector 15 Installing Cables One End Connector

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Installation Position External power equipment Depending on the RRU model DC power supply port on the RRU 3V3 power connector PWR port on the UPEU Protect port on the GPS surge protector GPS antenna Type N female connector Type N male connector Figure 15-9 shows and Table 15-2 lists the cable connections for a triple-mode base station supplied with -48 V DC power. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 114 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-9 Cable connections for a triple-mode base station Table 15-2 Cable description No. Cable One End Connecto r Installation Position P1 and P2 External input power cable OT terminal P3 to P14 RRU power cable OT terminal RTN(+) and NEG(-) terminals on the DCDU LOAD0 to LOAD5 terminals on the DCDU One End Connector

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Installation Position External power equipment Depending on the RRU model DC power supply port on the RRU Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 115 DBS3900 (ICR) Installation Guide No. Cable One End Connecto r Installation Position P15 and P16 BBU power cable OT terminal P17 and P18 GPS clock signal cable SMA male connector LOAD6 terminal on the DCDU GPS port on the USCU or LMPT in the BBU 15 Installing Cables One End Connector Installation Position 3V3 power connector PWR port on the UPEU Type N female connector Protect port on the GPS surge protector P19 and P20 GPS jumper Type N male connector Surge port on the GPS surge protector Type N male connector GPS antenna 15.2.2 Cable Connections (220 V AC) This section describes the cable connections for the scenarios with 220 V AC power supply. NOTE l Cable connections for the scenario with the DCDU-11B installed are the same as those for the scenario with the DCDU-03B installed. This section uses the cable connections for the latter scenario as an example. l RRU cable connections for the scenario with 220 V AC power supply are the same as those for the scenario with -48 V DC power supply, which is described in 15.2.1 Cable Connections (-48 V DC). Figure 15-10 shows and Table 15-3 lists the cable connections for a base station supplied with 220 V AC power. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 116 DBS3900 (ICR) Installation Guide Figure 15-10 Cable connections 15 Installing Cables Table 15-3 Cable description No. Cable One End Connecto r OT terminal External input power cable DCDU power cable OT terminal Installation Position Power input wiring terminal for the AC/DC power device RTN(+) and NEG(-) terminals on the DCDU PMU monitoring signal cable RJ45 connector RS232/RS485 port on the PMU P1 P2 P3 One End Connector

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Installation Position External power equipment OT terminal RTN(+) and LOAD1(-) or LOAD2(-) terminals on the AC/DC power device RJ45 connector MON1 port on the UPEU Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 117 DBS3900 (ICR) Installation Guide 15.2.3 Cable Connections (+24 V DC) 15 Installing Cables This section describes the cable connections for the scenarios with +24 V DC power supply. NOTE l Cable connections for the scenario with the DCDU-11B installed are the same as those for the scenario with the DCDU-03B installed. This section uses the cable connections for the latter scenario as an example. l RRU cable connections for the scenario with +24 V DC power supply are the same as those for the scenario with -48 V DC power supply, which is described in 15.2.1 Cable Connections (-48 V DC). Figure 15-11 shows and Table 15-4 lists the cable connections for a base station supplied with

+24 V DC power. Figure 15-11 Cable connections Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 118 15 Installing Cables One End Connector

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Installation Position External power equipment OT terminal RTN(+) and LOAD(-) terminals on the DC/DC power device RJ45 connector EXT-ALM1 port on the UPEU RJ45 connector EXT-ALM0 port on the UPEU DBS3900 (ICR) Installation Guide Table 15-4 Cable description No. Cable One End Connecto r Installation Position External input power cable OT terminal DCDU power cable OT terminal Power input wiring terminal for the DC/DC power device RTN(+) and NEG(-) terminals on the DCDU PSU in-

position signal cable PSU monitoring signal cable RJ45 connector Cord end terminal PRESENT port on the DC/

DC power device ALM port on the DC/DC power device P1 P2 P3 P4 15.3 Cable Installation Process This section describes the process of installing ICR cables. Cable Installation Process Figure 15-12 shows the cable installation process. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 119 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-12 Cable installation process 15.4 Cable Routes This section describes the cable routes. Figure 15-13 shows the planform of the cable tray. By studying the figure, you can know the cable routes. Figure 15-13 Cable routes

(1) -48 V DC or 220 V AC input power cable

(2) Optical cables and PGND cables for RRUs at the lower layer

(3) Feeders

(4) RRU power cables, E1/T1 cables, and FE/GE Ethernet or optical cables

(5) +24 V DC input power cable

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Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 120 DBS3900 (ICR) Installation Guide 15 Installing Cables 15.5 Installing PGND Cables for RRUs This section describes the procedure for installing PGND cables for RRUs. Context Procedure The cross-sectional area of the PGND cable for an RRU is 16 mm2 (0.025 in.2). l To install the PGND cable for a DC RRU, perform the following operations:

1. Cut the cable to a length suitable for the actual cable route. 2. Add an OT terminal to each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the PGND cable to the RRU, as shown in Figure 15-15. NOTE Crimp OT terminals in correct directions, as shown in Figure 15-14. Figure 15-14 Correct direction of an OT terminal Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 121 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-15 PGND cable for the DC RRU 4. Connect the other end of the PGND cable to the ground bar on the IFS06. 5. Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Label the installed cables according to the instructions in Attaching a Cable-Tying Label. 6. l To install the PGND cable for an AC RRU, perform the following operations:

1. Cut the cable to a length suitable for the actual cable route. 2. Add an OT terminal to each end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the PGND cable to the RRU, as shown in Figure 15-17. NOTE Crimp OT terminals in correct directions, as shown in Figure 15-16. Figure 15-16 Correct direction of an OT terminal Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 122 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-17 PGND cable for the AC RRU 4. Connect the other end of the PGND cable to the ground bar on the IFS06. 5. Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Label the installed cables according to the instructions in Attaching a Cable-Tying Label. 6.

----End 15.6 Installing the BBU Power Cable This section describes the procedure for installing the BBU power cable. Context Table 15-5 lists the specifications of a BBU power cable. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 123 DBS3900 (ICR) Installation Guide 15 Installing Cables Table 15-5 Specifications of a BBU power cable Power Device Connector on the BBU Side Connector on the Power Device Side DCDU-03B 3V3 connector 3V3 connector OT terminal (M4) bent by 90o Tool-less female connector

(pressfit type) 3V3 connector EPC4 Connector DCDU-11B DCDU-12B NOTE This section describes how to install the BBU power cable when the DCDU-03B is used as the power device. Procedure Step 1 Add a connector to the BBU power cable on the power device side according to the instructions in Assembling the OT Terminal and the Power Cable. NOTE A 3V3 connector has been added to one end of the BBU power cable before delivery. Another connector must be added to the other end of the cable onsite. Step 2 Install the BBU power cable, as shown in Figure 15-18. 1. Connect the 3V3 connector at one end of the BBU power cable to the PWR port on the UPEU in the BBU. Then tighten the screws on the connector to 0.25 Nm (2.21 lbfin.). 2. Connect the blue and black OT terminals at the other end of the BBU power cable to the NEG(-) and RTN(+) terminals, respectively, in the LOAD6 column on the DCDU-03B. Then tighten the screws on the connector to 1.2 Nm (10.61 lbfin.). Figure 15-18 Installing the BBU power cable Step 3 Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 124 DBS3900 (ICR) Installation Guide 15 Installing Cables Step 4 Label the installed cable according to the instructions in Attaching a Cable-Tying Label.

----End 15.7 Installing Input Power Cables This section describes the procedure for installing input power cables. Context An ICR supports power inputs of -48 V DC, +24 V DC, and 220 V AC. The input power cables for an ICR must be prepared onsite. Table 15-6 lists the specifications of input power cables. Table 15-6 Specifications of input power cables Cable

-48 V DC input power cable

(DCDU-03B)

-48 V DC input power cable

(DCDU-11B)

+24 V DC input power cable 220 V AC single-

phase input power cable 220 V AC three-

phase input power cable Connector at One End Connector at the Other End Cross-Sectional Area OT terminal

(M6) Depending on the external power system 16 mm2 (0.025 in.2, a pair) OT terminal

(M6) Depending on the external power system 16 mm2 (0.025 in.2, two pairs) OT terminal

(M6) OT terminal

(M6) Depending on the external power system Depending on the external power system 25 mm2 (0.039 in.2) 6 mm2 (0.009 in.2) OT terminal

(M6) Depending on the external power system 2.5 mm2 (0.004 in.2) l To install the -48 V DC input power cable, perform the following operations:

1. Cut the cable to a length suitable for the actual cable route. 2. Add an OT terminal to one end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the power cable to the corresponding RTN(+) and NEG(-) terminals on the DCDU-03B or DCDU-11B, as shown in Figure 15-19. Procedure Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 125 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-19 Installing the -48 V DC input power cable 4. Route the other end of the power cable along the cable trough at the rear left of the IFS06. Then connect the power cable to the external power system, as shown in Figure 15-19. Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Label the installed cable according to the instructions in Attaching a Cable-Tying Label. 5. 6. l To install the +24 V DC input power cable, perform the following operations:

1. Cut the cable to a length suitable for the actual cable route. 2. Add an OT terminal to one end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the power cable to the wiring terminals marked + and - on the wiring unit of the DC/DC power system, as shown in Figure 15-20. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 126 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-20 Installing the +24 V DC input power cable 4. Route the other end of the power cable along the cable trough at the rear left of the IFS06. Then connect the power cable to the external power system, as shown in Figure 15-20. Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Label the installed cable according to the instructions in Attaching a Cable-Tying Label. 5. 6. l To install the 220 V AC input power cable, perform the following operations:

1. Cut the cable to a length suitable for the actual cable route. 2. Add an OT terminal to one end of the cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the power cable to the AC INPUT port on the AC/DC power system, as shown in Figure 15-21. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 127 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-21 Installing the 220 V AC input power cable 4. Route the other end of the power cable along the cable trough at the rear left of the IFS06. Then connect the power cable to the external power system, as shown in Figure 15-21. Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Label the installed cable according to the instructions in Attaching a Cable-Tying Label. 5. 6.

----End 15.8 (Optional) Installing the DCDU Power Cable and Monitoring Signal Cable This section describes the procedures for installing the DCDU power cable and monitoring signal cable for the scenarios with 220 V AC or +24 V DC power supply. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 128 DBS3900 (ICR) Installation Guide Context Procedure 15 Installing Cables l DCDU-03B can use a pair of power cables with cross-sectional area of 16 mm2 (0.025 in. 2). l DCDU-11B or DCDU-12B can use two pairs of power cables with cross-sectional area of 16 mm2 (0.025 in. 2). l In the scenarios with 220 V AC or +24 V DC power supply, a power cable between the power system and the DCDU must be installed as well as a monitoring signal cable between the power system and the BBU. NOTE In the scenarios with -48 V DC power supply, one end of the power cable is directly connected to the DCDU and one end of the monitoring signal cable is directly connected to the BBU; the other ends of the cables are connected to the external power system. l To install the DCDU power cable and monitoring signal cable in the scenarios with +24 V DC power supply, perform the following operations:

1. Cut the power cable to a length suitable for the actual cable route. 2. Add an OT terminal to each end of the power cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the power cable to the wiring terminals marked LOAD(-) and RTN(+) on the wiring unit of the DC/DC power system, as shown in Figure 15-23. In Figure 15-22, the red line is the power cable, and the blue line is the monitoring signal cable. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 129 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-22 Power cable and monitoring signal cable in scenarios with +24 V DC power supply

(1) PSU in-position signal cable

(2) PSU monitoring signal cable

(3) DCDU power cable 4. Connect the other end of the power cable to the wiring terminals marked NEG(-) and RTN(+) on the DCDU. 5. Connect one end of the PSU monitoring signal cable to the EXT-ALM0 port on the UPEU, and the other end to the ALM port on the DC/DC power system. 6. Connect one end of the PSU in-position signal cable to the EXT-ALM1 port on the 7. 8. UPEU, and the other end to the PRESENT port on the DC/DC power system. Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Label the installed cables according to the instructions in Attaching an L-Shaped Label. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 130 DBS3900 (ICR) Installation Guide 15 Installing Cables l To install the DCDU power cable and monitoring signal cable in the scenarios with 220 V AC power supply, perform the following operations:

1. Cut the power cable to a length suitable for the actual cable route. 2. Add an OT terminal to each end of the power cable according to the instructions in Assembling the OT Terminal and the Power Cable. 3. Connect one end of the power cable to the wiring terminals marked LOAD1(-)/

LOAD2(-) and RTN(+) on the wiring unit of the AC/DC power system, as shown in Figure 15-23. In Figure 15-23, the red line is the power cable, and the blue line is the monitoring signal cable. Figure 15-23 DCDU power cable and monitoring signal cable in scenarios with 220 V AC power supply 4. Connect the other end of the power cable to the wiring terminals marked NEG(-) and RTN(+) on the DCDU-03B. 5. Connect one end of the monitoring signal cable to the MON1 port on the UPEU, and the other end to the RS232/RS485 port on the AC/DC power system. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 131 DBS3900 (ICR) Installation Guide 15 Installing Cables 6. 7. Lay out the cables according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End 15.9 Installing RRU Power Cables This section describes the procedures for installing RRU power cables, which feed DC power to RRUs. Context Table 15-7 lists the specifications of RRU power cables. Table 15-7 Specifications of RRU power cables Power Device Connector on the Power Device Side Connector on the RRU Side DCDU-12B EPC5 connector DCDU-11B Tool-less female connector

(pressfit type) DCDU-03B Bent OT terminal (M4) Depending on the RRU model Cable RRU power cable NOTE Procedure l Colors and structures of cables vary in different regions. If cables are purchased at local markets, they must comply with local rules and regulations. l The type of connector at the other end of an RRU power cable depends on the type of the RRU to which the power cable is connected. For how to add a connector to an RRU power cable, see the related RRU installation guide. l To install the power cable for a DC RRU, perform the following operations:

1. Open the cover plate of the RRU cabling cavity. 2. Cut the cable to a length suitable for the actual cable route. 3. Add a connector to each end of the RRU power cable. 4. Route the RRU power cable from the RRU side to the power equipment side through the feeder window. Install a ground clip near the feeder window outside the equipment room, and connect the PGND cable on the ground clip to the external ground bar. The installation procedure of ground clip is as follows:

a. Use a wire stripper to strip 63 mm (2.48 in.) long jacket off the power cable to expose the shield layer. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 132 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-24 Stripping the jacket off the power cable b. Wrap the copper sheet of the ground clip around the shield layer of the power cable, and use cable ties to bind them tightly. Then trim off surplus part from the heads of the cable ties without leaving any sharp edge. Figure 15-25 Wrapping and tying the copper sheet of the ground clip

(1) Hole for a cable tie (12AWG/4 mm2 or 0.006 in.2)

(2) Hole for a cable tie ( 6 mm2 or 0.009 in.2) c. Wrap three layers of waterproof tape and three layers of insulation tape around the ground clip. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 133 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-26 Wrapping the waterproof tape and insulation tape

(1) Waterproof tape

(4) Power cable

(2) Insulation tape

(5) PGND cable

(3) Cable tie

-

NOTICE Trim off surplus part of the cable ties at the position 3 mm (0.12 in.) to 5 mm

(0.20 in.) away from the head of the cable tie. 5. Connect one end of the RRU power cable to the DC power port on the DC RRU, as shown in Figure 15-27. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 134 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-27 Installing the power cable for a DC RRU 6. Connect the other end of the RRU power cable to one of the LOAD0 to LOAD5 ports on the DCDU. When the power device is DCDU-03B, then tighten the screws on the connector to 1.2 Nm (10.61 lbfin.). Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. 7. NOTICE When routing the RRU power cable on the top of the IMB03, avoid obstructing the heat dissipation holes of the IMB03. 8. Label the installed cable according to the instructions in Attaching a Cable-Tying Label. l To install the power cable for an AC RRU, perform the following operations:

Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 135 DBS3900 (ICR) Installation Guide 15 Installing Cables 1. Cut the cable to a length suitable for the actual cable route. 2. Add a connector to each end of the RRU power cable. 3. Route the RRU power cable from the RRU side to the power equipment side through the feeder window. Install a ground clip near the feeder window outside the equipment room, and connect the PGND cable on the ground clip to the external ground bar. The installation procedure of ground clip is as follows:

a. Use a wire stripper to strip 63 mm (2.48 in.) long jacket off the power cable to expose the shield layer. Figure 15-28 Stripping the jacket off the power cable b. Wrap the copper sheet of the ground clip around the shield layer of the power cable, and use cable ties to bind them tightly. Then trim off surplus part from the heads of the cable ties without leaving any sharp edge. Figure 15-29 Wrapping and tying the copper sheet of the ground clip

(1) Hole for a cable tie (12AWG/4 mm2 or 0.006 in.2)

(2) Hole for a cable tie ( 6 mm2 or 0.009 in.2) c. Wrap three layers of waterproof tape and three layers of insulation tape around the ground clip. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 136 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-30 Wrapping the waterproof tape and insulation tape

(1) Waterproof tape

(4) Power cable

(2) Insulation tape

(5) PGND cable

(3) Cable tie

-

NOTICE Trim off surplus part of the cable ties at the position 3 mm (0.12 in.) to 5 mm

(0.20 in.) away from the head of the cable tie. 4. Connect one end of the RRU power cable to the AC power port at the bottom of the AC RRU, as shown in Figure 15-31. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 137 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-31 Installing the power cable for an AC RRU 5. Connect the other end of the RRU power cable to the external power system. 6. Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Label the installed cable according to the instructions in Attaching a Cable-Tying Label. 7.

----End 15.10 (Optional) Installing BBU Inter-connection Cable This section describes the procedure for installing inter-BBU signal cables for a base station. Prerequisites l A new BBU has been added. l Optical modules and fiber optic cables meeting the following requirements are available:

The optical modules and fiber optic cables are of the multimode type. The multimode optical modules to be installed on the UMPT and UCIU support the rates of 5 Gbit/s and 2.5 Gbit/s. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 138 DBS3900 (ICR) Installation Guide 15 Installing Cables The interconnection signal cable between the WBBPf boards in two BBUs must be a QSFP cable. NOTE l Single-mode optical modules are labeled as SM and multimode optical modules are labeled as MM. l The puller of a single-mode optical module is blue. The puller of a multimode optical module is black or gray. l Figure 15-32 shows the label on an optical module. Figure 15-32 Label on an optical module

(1) Maximum rate

(2) Wavelength

(3) Transmission mode Context Table 15-8 lists the BBU interconnection scenarios and the ports to which inter-BBU signal cables are connected. For details about the BBU interconnection, see Inter-BBU Signal Cable Connections. Table 15-8 Ports to which inter-BBU signal cables are connected Scenario Installation Position BBU 0 BBU 1 UCIU+UCIU M0 port on the UCIU S0 port on the UCIU NOTE BBU 0 is the root BBU, and BBU 1 is the leaf BBU. NOTICE The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal. Therefore, you must insert a fiber optic cable into an unpacked optical module within 20 minutes. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 139 DBS3900 (ICR) Installation Guide Procedure 15 Installing Cables Step 1 Determine the positions for connecting the inter-BBU signal cables according to the actual interconnection scenarios. Step 2 Install the optical modules in BBU 0, as shown in Figure 15-33 and Figure 15-34. 1. Remove the dustproof caps from the corresponding ports on BBU 0. 2. 3. 4. Raise the puller on the optical module. Lower the puller on the optical module. Insert the optical modules into the ports. Figure 15-33 Removing the dustproof cap from the port Figure 15-34 Installing the optical module Step 3 Install the BBU inter-connection cable, as shown in Figure 15-35 and Figure 15-36. 1. Remove the dustproof caps from the optical connectors at the end labeled 2A and 2B on the fiber optic cables, and insert the optical connectors into the optical modules in BBU 0. 2. Route the fiber optic cable to the ports on the BBU1 side. 3. On BBU 1, install optical modules of the same type as those on BBU 0. NOTE Optical modules with the same labels are of the same type. 4. Remove the dustproof caps from the optical connectors at the end labeled 1A and 1B on the fiber optic cables, and insert the optical connectors into the optical modules in BBU 1. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 140 DBS3900 (ICR) Installation Guide 15 Installing Cables NOTICE The TX ports on BBU 0 must be connected to the RX ports on BBU 1, and the RX ports on BBU 0 must be connected to the TX ports on BBU 1. Figure 15-35 Removing the dustproof cap from the fiber optic cable Figure 15-36 Installing the BBU inter-connection cable Step 4 Lay out the cables according to the instructions in Cabling Requirements. If a fiber optic patch cord is used as a BBU interconnection signal cable, use binding straps to bind the BBU interconnection signal cable before using cable ties to secure it. If another type of cable is used as a BBU interconnection signal cable, directly use cable ties to secure it. Step 5 Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 141 DBS3900 (ICR) Installation Guide 15 Installing Cables 15.11 Installing Transmission Cables This chapter describes the procedures and precautions for installing transmission cables. 15.11.1 Installing E1/T1 Cables This section describes the procedure and precautions for installing E1/T1 cables. Prerequisites Procedure Ensure that both ends of the E1/T1 cables are disconnected from any equipment. Then solder all connectors to the E1/T1 cables during the same session. Step 1 Connect the DB26 male connector at one end of an E1/T1 cable to the E1/T1 port on the GTMU, and the DB26 male connector at one end of another E1/T1 cable to the E1/T1 port on the WMPT or UMPT, as shown in Figure 15-37. NOTE This section describes the procedures for installing E1/T1 cables in a GU base station using independent transmission. For the E1/T1 cable connections in other scenarios, see section "Transmission Cable Connections" in the DBS3900 Hardware Description. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 142 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-37 Installing E1/T1 cables Step 2 Tighten the screws on the DB26 male connectors to 0.4 Nm (3.54 lbfin.). Step 3 Route the other end of the cable through the right side on the top of the IMB03. Then connect it to the external transmission device. Step 4 Route the cables along the right side of the cabinet according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Step 5 Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End 15.11.2 Installing FE/GE Ethernet Cables This section describes the procedure and precautions for installing FE/GE Ethernet cables. Procedure Step 1 Connect one end of an FE/GE Ethernet cable to the FE0 port on the GTMU, and one end of another FE/GE Ethernet cable to the FE0 port on the WMPT or FE/GE0 port on the UMPT, as shown in Figure 15-38. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 143 DBS3900 (ICR) Installation Guide NOTE 15 Installing Cables l An FE/GE Ethernet cable must be a shielded straight-through cable. l This section describes how to install FE/GE Ethernet cables in a GU base station using independent transmission. For the FE/GE Ethernet cable connections in other configuration scenarios, see section

"Transmission Cable Connections" in the DBS3900 Hardware Description. Figure 15-38 Installing FE/GE Ethernet cables Step 2 Route the other end of the cable through the right side on the top of the IMB03. Then connect it to the external transmission device. Step 3 Route the cables along the right side of the cabinet according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Step 4 Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End 15.11.3 Installing FE/GE Optical Cables This section describes the procedure and precautions for installing FE/GE optical cables. Context l Single-mode optical modules are labeled as SM and multimode optical modules are labeled as MM. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 144 DBS3900 (ICR) Installation Guide 15 Installing Cables l The puller of a single-mode optical module is blue. The puller of a multimode optical module is black or gray. l An FE/GE optical cable has an LC connector at one end and an FC connector, SC connector, or LC connector at the other end. l SFP0 and FE/GE0 ports on the LMPT are used for one GE input. Therefore, they are not used simultaneously. l SFP1 and FE/GE1 ports on the LMPT are used for another GE input. Therefore, they are not used simultaneously. l This section describes how to install FE/GE optical cables in a GU base station using independent transmission. For the FE/GE optical cable connections in other configuration scenarios, see section "Transmission Cable Connections" in the DBS3900 Hardware Description. NOTICE The performance of an optical module may deteriorate if it is exposed to the air for more than 20 minutes. Therefore, insert a fiber optic cable into an unpacked optical module within 20 minutes. NOTICE The optical modules to be installed must match the rates of their corresponding ports. For example, the FE1 port (optical transmission port) on a GTMU/GTMUb /GTMUc supports only the transmission rate of 100 Mbit/s and therefore can only use an optical module supporting the transmission rate of 100 Mbit/s. If the port uses an optical module supporting the transmission rate of 1000 Mbit/s, the transmission link may be disconnected. Procedure Step 1 Install an optical module, as shown in Figure 15-39 and Figure 15-40. 1. Remove the dustproof cap from the corresponding FE/GE optical port on the corresponding BBU board. 2. Remove the dustproof cap from the optical module. 3. 4. 5. Raise the puller on the optical module. Lower the puller on the optical module. Insert the optical module into the FE/GE optical port. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 145 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-39 Removing the dustproof cap from the port Figure 15-40 Installing an optical module Step 2 Install an optical cable, as shown in Figure 15-41 and Figure 15-42. 1. Remove the dustproof caps from the connectors at the end labeled 2A and 2B on the optical cable, and insert the connector into the optical module on the BBU. 2. Route the other end of the optical cable through the right side on the top of the IMB03. Then connect it to the external transmission device. NOTICE The TX and RX ports on the BBU boards must be connected to the RX and TX ports on the transmission equipment, respectively. Figure 15-41 Removing the dustproof caps from the optical cable Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 146 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-42 Installing the optical cable Step 3 Route the cables along the right side of the cabinet according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Step 4 Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End 15.12 Installing CPRI Optical Cables This section describes the procedure for installing CPRI optical cables, which transmit CPRI signals between a BBU and RRUs. Context NOTE l Single-mode optical modules are labeled as SM and multimode optical modules are labeled as MM. l The puller of a single-mode optical module is blue. The puller of a multimode optical module is black or gray. l The optical modules to be installed must match the rates of their corresponding ports. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 147 15 Installing Cables NOTICE The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal. Therefore, you must insert an fiber optic cable into an unpacked optical module within 20 minutes. DBS3900 (ICR) Installation Guide Procedure Step 1 Install an optical module on the BBU side, as shown in Figure 15-43 and Figure 15-44. 1. Remove the dustproof caps from the CPRI ports on the BBU boards. 2. 3. 4. Raise the puller on the optical module. Lower the puller on the optical module. Insert the optical module into the CPRI port. Figure 15-43 Removing the dustproof cap from the port Figure 15-44 Installing an optical module Step 2 Install an optical cable, as shown in Figure 15-45, Figure 15-46, and Figure 15-47. 1. Remove the dustproof caps from the connectors at the end labeled 2A and 2B on the optical cable, and insert the connectors into the optical module on the BBU. 2. Route the CPRI optical cable along the right side of the ICR and into the cable trough. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 148 DBS3900 (ICR) Installation Guide 15 Installing Cables NOTICE l When routing optical cables, coil the cables and place them on the top center of the upper-level IMB03 to ensure that the holes for heat dissipation are not covered. l The minimum bending radius of the fiber is 140 mm. When coiling the optical cable, do not bend it excessively. 3. Insert optical modules into the CPRI_W/CPRI0/CPRI0/IR0 ports on the RF modules. The optical modules must be the same as those on the BBU side. NOTE l Optical modules with the same labels are of the same type. l The method of installing the CPRI optical cable for an AC RRU is the same as the method of installing the CPRI optical cable for a DC RRU. The following figures use the CPRI optical cable for a DC RRU as an example. 4. Remove the dustproof caps from the connectors at the end labeled 1A and 1B on the optical cable, and insert the connectors into the optical module on the RRU. NOTICE l When a CPRI optical cable connects a BBU and an RRU, the break-out optical cables on the BBU side and on the RRU side are 0.34 m (13.39 in.) and 0.03 m (1.18 in.), respectively. l If an LC-LC optical cable is used, the TX port on the BBU must be connected to the RX port on the RF module, and the RX port on the BBU must be connected to the TX port on the RF module. Figure 15-45 Removing the dustproof caps from the optical cable Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 149 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-46 Installing the CPRI optical cable (1) Figure 15-47 Installing the CPRI optical cable (2) Step 3 Route the cables along the right side of the cabinet according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cables. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 150 DBS3900 (ICR) Installation Guide 15 Installing Cables Step 4 Label the installed cables according to the instructions in Attaching an L-Shaped Label.

----End 15.13 Installing RF Jumpers This section describes the procedure for installing RF jumpers. Context Procedure l When connecting the DIN connectors on a DC RRU's RF jumper, first connect the DIN connector close to the cable tray and then the DIN connector at the other end. Bend an RF jumper before connecting it to an RRU. l RF jumpers are routed through the three slots in the middle of the cable trough. Each of the three slots can hold four RF jumpers. Install the lower RF jumpers before the upper RF jumpers. l The bending radius of an RF jumper must be more than or equal to 100 mm (3.94 in.). Step 1 Connect one end of the RF jumper to the RF port at the bottom of the RRU, as shown in Figure 15-48 and Figure 15-49. Figure 15-48 Installing the RF jumper for a DC RRU Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 151 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-49 Installing the RF jumper for an AC RRU Step 2 Connect the other end of the RF jumper to the feeder or antenna. Step 3 Route the RF jumper along the right side of the cabinet according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the RF jumper. Step 4 Label the installed RF jumper according to the instructions in Attaching a Sign Plate Label. Step 5 Apply color-coding to the installed RF jumper according to the instructions in Attaching the Color Ring.

----End 15.14 Installing the GPS Clock Signal Cable This section describes the procedure and precautions for installing a GPS clock signal cable. Context NOTE A satellite card needs to be installed onsite only for a USCU that supports the dual-satellite mode. Procedure Step 1 Put on an ESD wrist strap or a pair of ESD gloves. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 152 DBS3900 (ICR) Installation Guide 15 Installing Cables NOTICE Take proper ESD protection measures, for example, wear an ESD wrist strap or ESD gloves, to prevent electrostatic damage to the boards, modules, or electronic components. Step 2 Optional: Loosen the two M3 screws on the panel, and then pull out the USCU, as shown in Figure 15-50. Figure 15-50 Removing the USCU. Step 3 Optional: Install a satellite card on the USCU, as shown in Figure 15-51. 1. Remove the three M1.6 screws from the USCU. 2. Align the mounting holes on the satellite card with the bolts on the USCU. Tighten the three M1.6 screws that were removed in Step 3.1 to 0.1 Nm. 3. 4. Connect one end of the RF jumper to the RF port on the satellite card and the other end to the GPS port on the USCU. NOTICE There are six mounting holes on the satellite card. You need to install only three screws on the receiver, as shown in Figure 15-51 Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 153 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-51 Installing the satellite card on the USCU

(1) Satellite card

(2) RF jumper Step 4 Optional: Install the USCU equipped with the satellite card into the BBU, and tighten the screws on the USCU to 0.6 Nm. Step 5 Connect the SMA male connector at the other end of the GPS clock signal cable to the GPS port on the USCU or LMPT, as shown in Figure 15-52. NOTE If the USCU is not configured, connect the GPS clock signal cable to the GPS port on the LMPT. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 154 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-52 Installing the GPS clock signal cable Step 6 Install the GPS jumper, as shown in Figure 15-53. 1. Cut the cable to a length suitable for the actual cable route. 2. Install an N50 straight male connector at each end of the cable according to the instructions in Installing the Type N Coaxial Connector. 3. Connect one end of the cable to the type N female connector (labeled Surge) on the GPS surge protector. 4. Route the other end of the cable along the right side of the IFS06. Then connect it to the external GPS antenna. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 155 DBS3900 (ICR) Installation Guide 15 Installing Cables Figure 15-53 Installing the GPS jumper Step 7 Lay out the cable according to the instructions in 15.1 Cabling Requirements, and use cable ties to bind the cable. Step 8 Label the installed cable according to the instructions in Attaching a Sign Plate Label.

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 156 DBS3900 (ICR) Installation Guide 16 Installation Checklist 16 Installation Checklist This chapter describes the hardware installation checklist. Table 16-1 Hardware installation checklist No. Item 1 2 3 4 5 6 7 8 9 10 11 12 The position for each device conforms to the engineering drawing and meets clearance requirements. Sufficient space is reserved for equipment maintenance. The BBU, RRUs, and auxiliary devices are securely installed, and all screws are tightened. The DIP switch on the BBU is correctly set. The cover plate is securely installed on the RRU cabling cavity. None of power cables and PGND cables are short-circuited or reversely connected. In addition, these cables are not damaged or broken. There are no connectors or joints on each power cable or PGND cable. The terminals at both ends of the power cable or PGND cable are securely soldered or crimped. Bare wires and OT terminals at the wiring terminals are tightly wrapped with insulation tapes or heat shrink tubing. The work grounding and protection grounding of the base station share one group of ground bodies with the surge protection grounding of the building. The connectors of each signal cable are intact, and these cables are not damaged or broken. The distance between the bundled fibers and the BBU panel is between 40 mm

(1.57 in.) and 70 mm (2.76 in.). This avoids the interference by the cover plate of the IMB03. Labels are correct, legible, and complete at both ends of each cable. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 157 DBS3900 (ICR) Installation Guide 17 Power-On Check 17 Power-On Check Before powering on a base station, field engineers need to check the power-on status of the cabinet and its components. NOTICE l Power on a component within 7 days after unpacking it. If you power off the component for maintenance, restore power to the component within 48 hours. l Power on an RRU within 24 hours after unpacking it. If you power off an RRU for maintenance, restore power to the RRU within 24 hours. Power-On Check Figure 17-1 shows the power-on check process. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 158 DBS3900 (ICR) Installation Guide Figure 17-1 Power-on check 17 Power-On Check Checking the Indicator Status and Output Voltage Range The DC output voltage of the DCDU ranges from -43.2 V DC to -57 V DC. The normal status of the indicators on the BBU is as follows:

l UPEU: The RUN indicator is steady green. l FAN: The STATE indicator blinks green (on for 1s and off for 1s). l Other BBU boards: The RUN indicator blinks green (on for 1s and off for 1s). The normal status of the indicators on the RRU is as follows:

l The RUN indicator blinks green (on for 1s and off for 1s). Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 159 DBS3900 (ICR) Installation Guide 18 Installing the Cover Plate of the IMB03 18 Installing the Cover Plate of the IMB03 This chapter describes the procedure for installing the cover plate of the IMB03. Procedure Step 1 Fit the tabs on the cover plate into the slots in the IMB03, as shown in Figure 18-1. Figure 18-1 Installing the cover plate Step 2 Use a Phillips screwdriver to tighten the M3x8 bolts on the right side of the cover plate to 0.3 Nm (2.66 lbfin.), as shown in Figure 18-2. Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 160 DBS3900 (ICR) Installation Guide 18 Installing the Cover Plate of the IMB03 Figure 18-2 Securing the cover plate

----End Issue 12 (2015-04-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 161

DBS3900 LTE TDD V600R007C00 RRU3276 Installation Guide Issue Date Draft A 2015-10-30 HUAWEI TECHNOLOGIES CO., LTD. Copyright Huawei Technologies Co., Ltd. 2015. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website:

http://www.huawei.com Email:

support@huawei.com Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i DBS3900 LTE TDD RRU3252/RRU3256 Installation Guide About This Document About This Document Purpose This document describes the process of installing a DC RRU3276 (referred to as RRU in this document). Product Version The following table lists the product version related to this document. Product Name eRelay DBS3900 Product Version V100R003C00 and later versions Intended Audience This document is intended for:

Base station installation engineers Organization 1 Change History This chapter describes changes in the RRU3276 Installation Guide. 2 Installation Preparations This chapter describes the reference documents, tools, and instruments that must be ready before the installation. In addition, it specifies the skills that installation engineers must have. 3 Information About the Installation Before installing an RRU, you must be familiar with its exterior, ports, installation options, physical supports, and installation clearance requirements. 4 Unpacking the Equipment This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii DBS3900 LTE TDD RRU3252/RRU3256 Installation Guide 5 Installation Process About This Document The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on the RRU. 6 Hoisting the RRU and Cables onto a Tower This section describes how to hoist the RRU and Cables onto a tower and provides important notes about the installation. 7 Installing the RRU This chapter describes the procedure for installing the RRU. The RRU can be installed on a pole, U-steel, angle steel, or wall as required. 8 Installing RRU Cables This chapter describes the procedure for installing RRU cables. 9 Checking the RRU Hardware Installation This section describes how to check RRU hardware installation after the installation is complete. 10 Powering On an RRU This section describes how to check the power-on status of an RRU after all the devices are installed. 11 Appendix This section describes the procedure for adding an easy power receptacle (pressfit type) connector. Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol Description Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury. Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation that, if not avoided, could cause equipment damage, data loss, and performance degradation, or unexpected results. Indicates a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement important points of the main text. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii DBS3900 LTE TDD RRU3252/RRU3256 Installation Guide General Conventions About This Document Convention Description Times New Roman Normal paragraphs are in Times New Roman. Boldface Names of files, directories, folders, and users are in boldface. For example, log in as user root. Italic Book titles are in italics. Courier New Terminal display is in Courier New. Command Conventions Convention Description Boldface The keywords of a command line are in boldface. Italic

[ ]

{ x | y | ... }

[ x | y | ... ]

{ x | y | ... } *

Command arguments are in italics. Items (keywords or arguments) in square brackets [ ] are optional. Alternative items are grouped in braces and separated by vertical bars. One is selected. Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is selected. Alternative items are grouped in braces and separated by vertical bars. A minimum of one or a maximum of all can be selected. GUI Conventions Convention Description Boldface Buttons, menus, parameters, tabs, windows, and dialog titles are in boldface. For example, click OK.

>

Keyboard Operation Format Key Multi-level menus are in boldface and separated by the ">"

signs. For example, choose File > Create > Folder. Description Press the key. For example, press Enter and press Tab. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv DBS3900 LTE TDD RRU3252/RRU3256 Installation Guide About This Document Format Key 1+Key 2 Key 1, Key 2 Mouse Operation Action Click Double-click Drag Description Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently. Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn. Description Select and release the primary mouse button without moving the pointer. Press the primary mouse button twice continuously and quickly without moving the pointer. Press and hold the primary mouse button and move the pointer to a certain position. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. v eRelay DBS3900 RRU3252/RRU3256 Installation Guide Contents Contents About This Document .................................................................................................................... ii 1 Change History .............................................................................................................................. 1 2 Installation Preparations ............................................................................................................. 2 2.1 Reference Documents ...................................................................................................................................... 2 2.2 Tools and Instruments ...................................................................................................................................... 2 2.3 Skills and Requirements for Onsite Personnel ................................................................................................. 4 3 Information About the Installation ........................................................................................... 5 3.1 RRU Exterior ................................................................................................................................................... 5 3.2 RRU Ports ........................................................................................................................................................ 6 3.3 RRU Indicators ................................................................................................................................................. 8 3.4 Installation Options ........................................................................................................................................ 10 3.5 Installation Clearance Requirements of an RRU ............................................................................................ 15 3.5.1 Clearance for a Single RRU .................................................................................................................. 15 3.5.2 Clearance for Multiple RRUs................................................................................................................ 17 3.5.3 Spacing Between RRUs ........................................................................................................................ 20 4 Unpacking the Equipment ........................................................................................................ 23 5 Installation Process ..................................................................................................................... 25 6 Hoisting the RRU and Cables onto a Tower .......................................................................... 26 6.1 Installing an RRU on a Tower ........................................................................................................................ 26 6.2 Hoisting Fiber Optic Cables onto a Tower ..................................................................................................... 30 6.3 Hoisting Power Cables onto a Tower ............................................................................................................. 33 7 Installing the RRU ...................................................................................................................... 37 7.1 Mounting Kits for an RRU ............................................................................................................................. 38 7.2 Installing the RRU on a Pole .......................................................................................................................... 38 7.2.1 Installing a Single RRU ........................................................................................................................ 43 7.2.2 Installing Two RRUs ............................................................................................................................. 46 7.2.3 Installing Multiple RRUs ...................................................................................................................... 48 7.3 Installing the RRU on U-Steel ........................................................................................................................ 53 7.4 Installing the RRU on Angle Steel ................................................................................................................. 57 7.5 Installing the RRU on a Wall .......................................................................................................................... 60 Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vi eRelay DBS3900 RRU3252/RRU3256 Installation Guide Contents 8 Installing RRU Cables ................................................................................................................ 65 8.1 Cabling Requirements .................................................................................................................................... 66 8.2 Cable Connections ......................................................................................................................................... 72 8.3 Installation Process ......................................................................................................................................... 76 8.4 RRU Cable List .............................................................................................................................................. 77 8.5 Installing an RRU PGND Cable ..................................................................................................................... 79 8.6 Installing an RRU RF Jumper ........................................................................................................................ 80 8.7 Installing an RRU Alarm Cable ...................................................................................................................... 83 8.8 Installing an RRU AISG Multi-Wire Cable and an RRU AISG Extension Cable .......................................... 84 8.9 Opening the Cover Plate of an RRU Cabling Cavity ..................................................................................... 87 8.10 Installing an RRU Power Cable ................................................................................................................... 89 8.11 Installing an Optical Fiber Cable .................................................................................................................. 90 8.12 Closing the Cover Plate of an RRU Cabling Cavity .................................................................................... 92 9 Checking the RRU Hardware Installation ............................................................................. 95 10 Powering On an RRU ............................................................................................................... 96 11 Appendix .................................................................................................................................... 98 11.1 Adding an Easy Power Receptacle (Pressfit Type) Connector to an RRU Power Cable .............................. 98 Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vii eRelay DBS3900 RRU3252/RRU3256 Installation Guide 1 Change History 1 Change History This chapter describes changes in the RRU3276 Installation Guide. Draft A (2015-10-30) This is a draft. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 2 Installation Preparations 2 Installation Preparations About This Chapter This chapter describes the reference documents, tools, and instruments that must be ready before the installation. In addition, it specifies the skills that installation engineers must have. 2.1 Reference Documents Before the installation, you must be familiar with reference documents. 2.2 Tools and Instruments All tools and instruments required for RRU installation must be ready before the installation. 2.3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained. Before performing any operation, onsite personnel must be familiar with correct operation methods and safety precautions. 2.1 Reference Documents Before the installation, you must be familiar with reference documents. The following reference documents are required during RRU installation:

RRU3276 Hardware Description DBS3900 Installation Guide OCB-01M User Guide This document describes the RRU installation on a pole, U-steel, angle steel, or wall. If RRUs are installed on the IFS06, the following reference document is required:

DBS3900 (ICR) Installation Guide 2.2 Tools and Instruments All tools and instruments required for RRU installation must be ready before the installation. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 2 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 2 Installation Preparations Hammer drill ( 12 bit to 14 bit) Electrostatic discharge

(ESD) gloves Vacuum cleaner Heat gun Phillips screwdriver (M3 to M6) Flat-head screwdriver (M3 to M6) Rubber mallet Hydraulic pliers Utility knife Cable cutter Wire stripper Level Adjustable wrench (capacity 32 mm) Torque screwdriver Torque socket 5 mm

(M3 to M6)

(M3 to M6) Torque wrench Capacity: 17 mm, 21 mm, and 32 mm Combination wrench Capacity: 17 mm, 21 mm, and 32 mm Multimeter Marker (diameter 10 mm) Measuring tape Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 3 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 2 Installation Preparations 2.3 Skills and Requirements for Onsite Personnel Onsite personnel must be qualified and trained. Before performing any operation, onsite personnel must be familiar with correct operation methods and safety precautions. Before the installation, pay attention to the following items:

The customer's technical engineers must be trained by Huawei and be familiar with the proper installation and operation methods. The number of onsite personnel depends on the engineering schedule and installation environment. Generally, only three to five onsite personnel are necessary. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 4 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation 3 Information About the Installation About This Chapter Before installing an RRU, you must be familiar with its exterior, ports, installation options, physical supports, and installation clearance requirements. 3.1 RRU Exterior This section describes the exterior and dimensions of an RRU. 3.2 RRU Ports This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel. 3.3 RRU Indicators This section describes six indicators on an RRU. They indicate the running status. 3.4 Installation Options This section describes RRU installation options. An RRU can be installed on a pole, U-steel, angle steel, or wall. 3.5 Installation Clearance Requirements of an RRU This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs. 3.1 RRU Exterior This section describes the exterior and dimensions of an RRU. Figure 3-1 shows an RRU. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 5 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-1 RRU exterior Figure 3-2 shows RRU dimensions. Figure 3-2 RRU dimensions 3.2 RRU Ports This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel. Figure 3-3 shows the ports on the RRU panels. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 6 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-3 Ports on the RRU panels Table 3-1 describes ports and indicators on the RRU panels. Table 3-1 Ports and indicators on the RRU panels Item Label Description

(1) Ports at the bottom ANT0-ANT3 TX/RX ports. ANT0 port supports RET signal transmission. RET/EXT_ALM Communication port for the RET antenna or port for alarm reporting, supporting RET signal transmission Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 7 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Item

(2) Ports in the cabling cavity

(3) Indicators Label RGPS Description RGPS port, which is optional. CPRI0/IR0 Optical port Power supply socket For details, see 3.3 RRU Indicators. CPRI1/IR1 RTN(+) NEG(-) RUN ALM ACT VSWR CPRI0/IR0 CPRI1/IR1 If only two RF ports are required, ANT0 and ANT1 are used by default. The RET ports to be used are determined by the software configuration. 3.3 RRU Indicators This section describes six indicators on an RRU. They indicate the running status. For the specific positions of RRU indicators, see 3.2 RRU Ports. Table 3-2 describes RRU indicators. Table 3-2 Indicators on the RRU Label Color Status Description RUN Green Steady on Steady off Blinking on for 1s and off for 1s There is power supply, but the module is faulty. There is no power supply, or the module is faulty. The module is working properly. Blinking on for 0.125s and off for 0.125s Software is being loaded to the module, or the module is not started. ALM Red Steady on Alarms are generated, and the module must be replaced. Steady off No alarm is generated. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 8 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Label Color Status Description Blinking on for 1s and off for 1s ACT Green Steady on Alarms are generated. The alarms may be caused by the faults on the related modules or ports. Therefore, the necessity for module replacement is uncertain. The module is working properly with TX channels enabled or software is being loaded without RRU running. Blinking on for 1s and off for 1s The module is working properly with TX channels disabled. VSWR Red Steady off No VSWR alarm is generated. Steady on A VSWR alarm is generated. CPRI0/I R0 Red or green Steady green The CPRI link is functioning properly. Steady red Blinking red on for 1s and off for 1s Steady off An optical module fails to transmit or receive signals possibly because the optical module is faulty or the optical fiber cable is broken. The CPRI link is out of lock possibly because of mutual lock of dual-mode clock sources or mismatched data rates over CPRI ports. (You are advised to check the system configuration to rectify the fault.) The SFP module is not properly installed, or the optical module is powered off. CPRI1/I R1 Red or green Steady green The CPRI link is functioning properly. Steady red Blinking red on for 1s and off for 1s Steady off An optical module fails to transmit or receive signals possibly because the optical module is faulty or the optical fiber cable is broken. The CPRI link is out of lock possibly because of mutual lock of dual-mode clock sources or mismatched data rates over CPRI ports. (You are advised to check the system configuration to rectify the fault.) The SFP module is not properly installed, or the optical module is Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 9 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Label Color Status Description powered off. 3.4 Installation Options This section describes RRU installation options. An RRU can be installed on a pole, U-steel, angle steel, or wall. Installing an RRU on a Pole Figure 3-4 shows the diameter of a metal pole for installing an RRU. Figure 3-4 Diameter of a pole Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 10 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation The diameter of a pole for installing an RRU ranges from 60 mm to 114 mm (2.36 in. to 4.49 in.). The recommended diameter is 80 mm (3.15 in.). If the diameter of a pole ranges from 60 mm to 76 mm (2.36 in. to 2.99 in.), a maximum of three RRUs can be installed on the pole and the side-mounted installation must not be adopted. If three or more RRUs must be installed on a pole in centralized mode, the diameter of the pole must range from 76 mm to 114 mm (2.99 in. to 4.49 in.). The recommended pole thickness is 3.5 mm (0.14 in.) or thicker. The angle between the vertical plane and the pole, angle steel, or U-steel must be smaller than or equal to 10, as shown in Figure 3-5. Figure 3-5 Requirement of the angle between the ground and the pole, angle steel, or U-steel

(1) RRU

(2) Pole, angle steel, or U-steel Figure 3-6 shows an RRU installed on a pole. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 11 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-6 RRU installed on a pole Installing an RRU on U-steel It is recommended that only one RRU be installed on U-steel. Figure 3-7 shows U-steel specifications. Figure 3-7 U-steel specifications Figure 3-8 shows an RRU installed on U-steel. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 12 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-8 RRU installed on U-steel Installing an RRU on Angle Steel Figure 3-9 shows angle steel specifications. Figure 3-9 Angle steel specifications It is recommended that only one RRU be installed on angle steel. Figure 3-10 shows an RRU installed on angle steel. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 13 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-10 RRU installed on angle steel Installing an RRU on a Wall The wall on which RRUs are installed must meet the following requirements:

When a single RRU is installed, the wall has a capacity of bearing at least four times the weight of the RRU. Expansion bolts must be tightened with a torque of 30 Nm (265.52 lbfin.) to ensure the bolts work properly and the wall remains intact without cracks in it. Figure 3-11 shows an RRU installed on a wall. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 14 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-11 RRU installed on a wall 3.5 Installation Clearance Requirements of an RRU This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs. The recommended installation clearance ensures normal running and provides an appropriate space for OM. If there is sufficient space, leave the recommended installation clearance. The minimum installation clearance ensures normal running and heat dissipation, but OM activities such as checking indicator status and opening the maintenance cavity cannot be properly conducted. If the installation space is restricted, leave the minimum installation clearance. 3.5.1 Clearance for a Single RRU This section describes the recommended and minimum clearance for a single RRU. Recommended Clearance for a Single RRU Figure 3-12 shows the recommended clearance for a single RRU. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 15 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-12 Recommended clearance for a single RRU Minimum Clearance for a Single RRU Figure 3-13 shows the minimum clearance for a single RRU. Figure 3-13 Minimum clearance for a single RRU Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 16 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Minimum Clearance for a Single RRU Installed on a Tower Figure 3-14 shows the minimum clearance for a single RRU installed on a tower. Figure 3-14 Minimum clearance for a single RRU installed on a tower 3.5.2 Clearance for Multiple RRUs This section describes the recommended and minimum clearance for multiple RRUs. Recommended Clearance for Multiple RRUs Installed in Centralized Mode Figure 3-15 shows the recommended clearance for multiple RRUs installed in centralized mode. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 17 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-15 Recommended clearance for multiple RRUs installed in centralized mode Minimum Clearance for Multiple RRUs Installed in Centralized Mode Figure 3-16 shows the minimum clearance for multiple RRUs installed in centralized mode. Figure 3-16 Minimum clearance for multiple RRUs installed in centralized mode Recommended clearance for multiple RRUs installed on a wall in standard mode Figure 3-17 shows the recommended clearance for multiple RRUs installed on a wall in standard mode. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 18 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-17 Recommended clearance for multiple RRUs installed on a wall in standard mode Minimum clearance for multiple RRUs installed on a wall in standard mode Figure 3-18 shows the minimum clearance for multiple RRUs installed on a wall in standard mode. Figure 3-18 Minimum clearance for multiple RRUs installed on a wall in standard mode Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 19 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Recommended Clearance for Multiple RRUs Side-Mounted on a Wall Figure 3-19 shows the recommended clearance for multiple RRUs side-mounted on a wall. Figure 3-19 Recommended clearance for multiple RRUs side-mounted on a wall 3.5.3 Spacing Between RRUs This section describes the horizontal and vertical installation spacing between RRUs. Recommended horizontal spacing between RRUs Figure 3-20 shows the recommended horizontal spacing between RRUs. Figure 3-20 Recommended horizontal spacing between RRUs Minimum horizontal spacing between RRUs Figure 3-21 shows the minimum horizontal spacing between RRUs. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 20 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Figure 3-21 Minimum horizontal spacing between RRUs Recommended vertical spacing between RRUs Figure 3-22 shows the recommended vertical spacing between RRUs. Figure 3-22 Recommended vertical spacing between RRUs Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 21 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 3 Information About the Installation Minimum vertical spacing between RRUs Figure 3-23 shows the minimum vertical spacing between RRUs. Figure 3-23 Minimum vertical spacing between RRUs Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 22 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 4 Unpacking the Equipment 4 Unpacking the Equipment This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact. Context When transporting, moving, or installing the equipment, components, or parts, you must:

Prevent them from colliding with doors, walls, shelves, or other objects. Wear clean gloves, and avoid touching the equipment, components, or parts with bare hands, sweat-soaked gloves, or dirty gloves. After a cabinet or an BBU is unpacked, it must be powered on within 7 days. After an RRU is unpacked, it must be powered on within 24 hours. Procedure Step 1 Check the total number of articles in each case according to the packing list. If ... The total number tallies with the packing list Then ... Go to Step 2. The total number does not tally with the packing list Find out the cause and report any missing articles to the local Huawei office. Step 2 Check the exterior of the packing case. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 23 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 4 Unpacking the Equipment If ... Then ... The outer packing is intact Go to Step 3. The outer packing is severely damaged or soaked Find out the cause and report it to the local Huawei office. The shockwatch label is red Stop unpacking the wooden crate, and then report it to the transportation company. Step 3 Check the type and quantity of the equipment in the cases according to the packing list. If ... Then ... Types and quantity of the article tally with those on the packing list Either shipment shortage, wrong shipment or damaged articles. Sign the Packing List with the customer. Report to the local Huawei office. To protect the equipment and prevent damage to the equipment, you are advised to keep the unpacked equipment and packing materials indoors, take photos of the stocking environment, packing case or carton, packing materials, and any rusted or eroded equipment, and then file the photos.

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 24 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 5 Installation Process 5 Installation Process The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on the RRU. Figure 5-1 shows the process of installing an RRU. Figure 5-1 Process of installing an RRU Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 25 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower 6 Hoisting the RRU and Cables onto a Tower About This Chapter This section describes how to hoist the RRU and Cables onto a tower and provides important notes about the installation. 6.1 Installing an RRU on a Tower This section describes the procedure for installing an RRU on a tower and the precautions that must be taken. The RRU can be installed on a pole, U-steel, or angle steel. 6.2 Hoisting Fiber Optic Cables onto a Tower This section describes the procedure for hoisting fiber optic cables onto a tower and the precautions that must be taken. 6.3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken. 6.1 Installing an RRU on a Tower This section describes the procedure for installing an RRU on a tower and the precautions that must be taken. The RRU can be installed on a pole, U-steel, or angle steel. Prerequisites Procedure Place a foam pad or cardboard on the ground to protect the housing of the RRU from damage before the binding. Do not stand the RRU upright because the load-bearing capacity of the RF ports at the RRU bottom is low. Step 1 Hoist the RRU and mounting kits onto the tower, as shown in Figure 6-1. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 26 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Hoist mounting kits onto the tower and then install the mounting kits before hoisting the RRU onto the tower. When hoisting the mounting kits and RRU, protect them from colliding with the tower. Figure 6-1 Hoisting an RRU onto a tower

(1) Lifting sling

(2) Fixed pulley

(3) Traction sling 1. After climbing up to the tower, installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley. 2. Installation engineer C binds the mounting kits using the lifting sling, as shown in Figure 6-2, and binds the RRU using the lifting sling and traction sling, as shown in Figure 6-3. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 27 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-2 Binding mounting kits for the RRU Figure 6-3 Binding the RRU

(1) Lifting sling

(2) Lifting eye

(3) Traction sling

(4) RRU handle Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 28 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Each sling has a load-bearing capacity of more than 200 kg (441 lb), the diameter of the sling must be less than 25 mm (0.98 in.), and the angle at the top of the lifting sling [by the knot] must not be greater than 60 degrees. When hoisting the RRU and mounting kits onto the tower, protect them from colliding with the tower. Hoist the RRU onto the tower before it is installed on a pole, angle steel, or U-steel. Do not hoist the RRU by the handle or lifting eye only, as shown in Figure 6-4 and Figure 6-5. Figure 6-4 Incorrect binding method - hoisting the RRU by the handle only Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 29 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-5 Incorrect binding method - hoisting the RRU by the lifting eye only 3. Installation engineer B pulls the lifting sling downwards, and installation engineer C pulls the traction sling outwards to protect the RRU from colliding with the tower. Step 2 Installation engineer A catches the RRU and mounting kits and install the RRU. Step 3 Remove the lifting sling and traction sling. The procedure for hoisting the RRU onto the tower is for your reference only.

----End 6.2 Hoisting Fiber Optic Cables onto a Tower This section describes the procedure for hoisting fiber optic cables onto a tower and the precautions that must be taken. Context Procedure Cabling requirements for power cables are met. For details, see Cabling Requirements. Step 1 Hoist the fiber optic cables onto the tower, as shown in Figure 6-6. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 30 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-6 Hoisting fiber optic cables onto the tower

(1) Lifting sling

(2) Fixed pulley

(3) Traction sling Before hoisting fiber optic cables onto the tower, connect the fiber optic cables to the RRU or BBU based on the labels on both ends of the cables and determine the hoisting direction. 1. After climbing up to the tower, installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley. 2. Installation engineer B places the fiber coiler for coiling fiber optic cables on the fiber spools, and installation engineer D lead the lifting sling through the stretch sling of the fiber optic cables and use the other sling as a traction sling to secure the cables 4 m

(13.12 ft) away from the lifting sling, as shown in Figure 6-7. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 31 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-7 Binding fiber optic cables

(1) Lifting sling

(2) Stretch sling

(3) Traction sling Do not remove the stretch sling and protection pipe or bind fiber optic cables using one sling, as shown in Figure 6-8. Figure 6-8 Incorrect binding method 3. Installation engineer B rotates the fiber spools at the speed of 5 m (16.4 ft) to 15 m

(49.21 ft) per minute to coil the fiber optic cables. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 32 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower 4. Installation engineer C pulls the lifting sling downwards, and installation engineer D pulls the traction sling outwards to protect the fiber optic cables from colliding with the tower. Step 2 Secure the fiber optic cables to the tower vertically using cable clips. Step 3 Remove the lifting sling, traction sling, and protection pipe. The procedure for hoisting the fiber optic cables onto the tower is for your reference only.

----End 6.3 Hoisting Power Cables onto a Tower This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken. Context Procedure Cabling requirements for power cables are met. For details, see Cabling Requirements. The procedure for adding a connector to the RRU power cable on the RRU side is done under the tower. Step 1 Hoist the power cables onto the tower, as shown in Figure 6-9. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 33 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-9 Hoisting power cables onto the tower

(1) Lifting sling

(2) Fixed pulley 1. After climbing up to the tower, installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley. 2. Installation engineer B secures three cable ties to the power cable connector, and then secures the power cable to the lifting sling, as shown in Figure 6-10. The connector on the power cable in the figure is only an example. The actual connector may vary according to the situation. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 34 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-10 Binding cable ties 3. Installation engineer B wraps the power cable connector with a layer of PVC insulation tape, as shown in Figure 6-11. Wrap the PVC insulation tape from 30 mm (1.18 in.) away from one end of the connector until it reaches the other end of the connector. The total length of the wrapped connector is 100 mm (3.94 in.). Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 35 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 6 Hoisting the RRU and Cables onto a Tower Figure 6-11 Wrapping the PVC insulation tape 4. Installation engineer C pulls the lifting sling downwards, and installation engineer B pulls the other end of the lifting sling outwards to protect the power cables from colliding with the tower. Step 2 Secure the power cables to the tower vertically using cable clips. Step 3 Remove the cable ties, PVC insulation tape, and lifting sling. The procedure for hoisting the power cables onto the tower is for your reference only.

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 36 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU 7 Installing the RRU About This Chapter This chapter describes the procedure for installing the RRU. The RRU can be installed on a pole, U-steel, angle steel, or wall as required. Do not stand the RRU upright because the load-bearing capacity of the RF ports at the RRU bottom is low. Place a foam pad or cardboard under an RRU to protect the RRU housing from damage during the installation. 7.1 Mounting Kits for an RRU This section describes the bracket assembly and the attachment plate for an RRU. 7.2 Installing the RRU on a Pole This section illustrates the installation of one or more RRUs on a pole. 7.3 Installing the RRU on U-Steel This section describes the procedure for installing the RRU on U-steel and the precautions that must be taken during the installation. The RRU installed on U-steel can be mounted to a tower or placed on the ground. It is recommended that only one RRU be installed on U-steel. 7.4 Installing the RRU on Angle Steel This section describes the procedure for installing the RRU on angle steel and the precautions that must be taken during the installation. The RRU installed on angle steel can be mounted to a tower or placed on the ground. It is recommended that only one RRU be installed on angle steel. 7.5 Installing the RRU on a Wall This section describes the procedure for installing the RRU on a wall and the precautions that must be taken during the installation. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 37 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7.1 Mounting Kits for an RRU 7 Installing the RRU This section describes the bracket assembly and the attachment plate for an RRU. Figure 7-1 shows the bracket assembly for an RRU. Figure 7-1 Bracket assembly for an RRU

(1) Plastic screw cap

(2) M10 nut

(3) Spring washer

(4) Flat washer

(5) M10x150 bolt

(6) Auxiliary mounting bracket

(7) Hoist clamp on the main mounting bracket

(8) Main mounting bracket Figure 7-2 shows the rear view of an RRU. Figure 7-2 Rear view of an RRU

(1) Attachment plate 7.2 Installing the RRU on a Pole This section illustrates the installation of one or more RRUs on a pole. Figure 7-3 shows a single RRU installed on a pole. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 38 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-3 Single RRU installed on a pole 7 Installing the RRU Figure 7-4 shows two RRUs installed on a pole. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 39 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-4 Two RRUs installed on a pole 7 Installing the RRU If two RRUs are installed on a pole, the minimum distance between the two sets of mounting kits is the height of an RRU. Figure 7-5, Figure 7-6, and Figure 7-7 show multiple RRUs installed on a pole. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 40 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-5 Three RRUs installed on a pole in centralized mode Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 41 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-6 Four RRUs installed on a pole in centralized mode Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 42 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-7 Six RRUs installed on a pole in centralized mode 7.2.1 Installing a Single RRU This section describes the procedure for installing a single RRU on a pole and the precautions that must be taken during the installation. Prerequisites Procedure Before you install an RRU on a tower, the RRU and mounting kits are hoisted onto the tower. For details, see 6.1 Installing an RRU on a Tower. The hoist clamp on the main mounting bracket is secured properly. Step 1 Determine a position for installing the main mounting bracket. If the RRU must be installed on a tower, see 3.5.1 Clearance for a Single RRU to determine a position. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 43 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU If the RRU must be installed on the ground, see Figure 7-8 to determine a position. Figure 7-8 Distance between the main mounting bracket and the ground Step 2 Manually loosen the two M10 nuts on the mounting kits counterclockwise, horizontally remove one end of the M10x150 bolt from the U notch on the auxiliary mounting bracket, and then disassemble the mounting kits, as shown in Figure 7-9. Figure 7-9 Removing the M10x150 bolt from the U notch Step 3 Install the bracket assembly on a pole. Then, place the removed end of the bolt into the U notch, as shown in Figure 7-10. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 44 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-10 Bracket assembly installed on a pole 7 Installing the RRU Step 4 To secure the bracket assembly to the pole, use a torque wrench with an aperture of 16 mm

(0.67 in.) to tighten the two M10 nuts with a torque of 40 Nm (354.03 lbfin.), as shown in Figure 7-11. Figure 7-11 Securing the bracket assembly

(1) Plastic screw cap Do not remove the plastic screw caps from the bolts on the mounting kits. Step 5 Install the RRU on the main mounting bracket until the RRU snaps shut, as shown in Figure 7-12. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 45 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-12 Installing the RRU on the main mounting bracket

----End 7.2.2 Installing Two RRUs This section describes the procedure for installing two RRUs on a pole and the precautions that must be taken during the installation. Procedure Step 1 Install the first RRU, as shown in Figure 7-13. For details, see 7.2.1 Installing a Single RRU. Figure 7-13 Installing the first RRU Step 2 Install the second set of mounting kits, The distance between the two sets of mounting kits must equal the height of an RRU. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 46 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Step 3 Remove the attachment plate from the rear of the second RRU and then install it on the RRU front, as shown in Figure 7-14. Figure 7-14 Removing the attachment plate from the rear of the second RRU and then installing it on the RRU front 1. Remove the attachment plate from the RRU rear using an inner hexagon screwdriver. 2. Install the attachment plate to the RRU front, and tighten the stainless steel screws on the attachment plate with a torque of 4.8 Nm (44.25 lbfin.) using a torque screwdriver. Step 4 Install the second RRU on the main mounting bracket, as shown in Figure 7-15. When you install two RRUs in back-to-back mode, ensure that the cabling cavities of these two RRUs face the same direction. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 47 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-15 Installing the second RRU on the main mounting bracket

(1) RRU installed in standard mode

(2) RRU installed in reverse mode

(3) Cabling cavity

----End 7.2.3 Installing Multiple RRUs This section describes the procedure for installing multiple remote radio units (RRUs) on a pole and the precautions that must be taken during the installation. Context Procedure Three, four, or six RRUs can be installed on a pole. The procedures for installing them are the same. Following is the procedure for installing four RRUs on a pole. Step 1 Install the first set of mounting kits on a pole. For details, see 7.2.1 Installing a Single RRU. Step 2 Remove an attachment plate from the RRU rear, and install it on one side of the RRU, as shown in Figure 7-16. (Repeat this step to change the positions of all the other attachment plates of the RRU.) Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 48 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-16 Removing an attachment plate from the RRU rear and installing it on one side of the RRU 1. Use an inner hexagon screwdriver to remove the attachment plate from the RRU rear. 2. Install the attachment plate on one side of the RRU, and use a torque screwdriver to tighten the stainless steel screws on the attachment plate with a torque of 5 Nm (44.25 lbfin.). Step 3 Install the first RRU on the main mounting bracket in the first set of mounting kits, as shown in Figure 7-17. Figure 7-17 Installing the first RRU on the main mounting bracket Step 4 Install the second main mounting bracket on the side of the first main mounting bracket, as shown in Figure 7-18. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 49 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-18 Installing the second main mounting bracket Step 5 Install the second RRU on the second main mounting bracket, as shown in Figure 7-19. Figure 7-19 Installing the second RRU on the main mounting bracket Step 6 Install the third main mounting bracket and the third RRU, as shown in Figure 7-20. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 50 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-20 Installing the third RRU on the main mounting bracket Step 7 Install the second set of mounting kits, as shown in Figure 7-21. The minimum distance between the two sets of mounting kits is the height of an RRU. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 51 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-21 Installing the second set of mounting kits 7 Installing the RRU Step 8 Install the fourth RRU on the main mounting bracket of the second set of mounting kits, as shown in Figure 7-22. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 52 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-22 Installing the fourth RRU on the main mounting bracket

----End 7.3 Installing the RRU on U-Steel This section describes the procedure for installing the RRU on U-steel and the precautions that must be taken during the installation. The RRU installed on U-steel can be mounted to a tower or placed on the ground. It is recommended that only one RRU be installed on U-steel. Prerequisites Context Before you install an RRU on a tower, the RRU and mounting kits are hoisted onto the tower. For details, see 6.1 Installing an RRU on a Tower. The hoist clamp on the main mounting bracket is secured properly. Figure 7-23 shows the top view of the RRU installed on angle steel. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 53 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-23 Top view of the RRU 7 Installing the RRU

(1) U-steel If the length of the narrow side of U-steel is less than 40 mm (1.57 in.), install an RRU in mode a or mode b shown in Figure 7-23. Procedure Step 1 Determine a position for installing the main mounting bracket. If the RRU is to be installed on a tower, determine the position for installing the main mounting bracket by referring to 3.5.1 Clearance for a Single RRU. If the RRU is to be installed on the ground, determine the position for installing the main mounting bracket by referring to Figure 7-24. Figure 7-24 Distance between the main mounting bracket and the ground Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 54 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU It is recommended that the main mounting bracket be 1200 mm to 1600 mm (47.24 in. to 62.99 in.) above the ground. Step 2 Manually loosen the two M10 nuts on the mounting kits counterclockwise, horizontally remove one end of the M10x150 bolt from the U notch on the auxiliary mounting bracket, and then disassemble the mounting kits, as shown in Figure 7-25. Figure 7-25 Removing the M10x150 bolt from the U notch Step 3 Install the bracket assembly on U-steel. Then, place the removed end of the bolt into the U notch, as shown in Figure 7-26. Figure 7-26 Bracket assembly installed on U-steel Step 4 To secure the bracket assembly to the U-steel, use a torque wrench with an aperture of 16 mm

(0.67 in.) to tighten the two M10 nuts with a torque of 40 Nm (354.03 lbfin.), as shown in Figure 7-27. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 55 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-27 Securing the bracket assembly 7 Installing the RRU

(1) Plastic screw cap Step 5 Install the RRU on the main mounting bracket until the RRU snaps shut, as shown in Figure 7-28. Figure 7-28 Installing the RRU on the main mounting bracket

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 56 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU 7.4 Installing the RRU on Angle Steel This section describes the procedure for installing the RRU on angle steel and the precautions that must be taken during the installation. The RRU installed on angle steel can be mounted to a tower or placed on the ground. It is recommended that only one RRU be installed on angle steel. Prerequisites Context Before you install an RRU on a tower, the RRU and mounting kits are hoisted onto the tower. For details, see 6.1 Installing an RRU on a Tower. The hoist clamp on the main mounting bracket is secured properly. Figure 7-29 shows the top view of the RRU installed on angle steel. Figure 7-29 Top view of the RRU

(1) Angle steel Procedure Step 1 Determine a position for installing the main mounting bracket. If the RRU is to be installed on a tower, determine the position for installing the main mounting bracket by referring to 3.5.1 Clearance for a Single RRU. If the RRU is to be installed on the ground, determine the position for installing the main mounting bracket by referring to Figure 7-30. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 57 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-30 Distance between the main mounting bracket and the ground It is recommended that the main mounting bracket be 1200 mm to 1600 mm (47.24 in. to 62.99 in.) above the ground. Step 2 Manually loosen the two M10 nuts on the mounting kits counterclockwise, horizontally remove one end of the M10x150 bolt from the U notch on the auxiliary mounting bracket, and then disassemble the mounting kits, as shown in Figure 7-31. Figure 7-31 Removing the M10x150 bolt from the U notch Step 3 Install the bracket assembly on angle steel. Then, place the removed end of the bolt into the U notch, as shown in Figure 7-32. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 58 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-32 Bracket assembly installed on angle steel 7 Installing the RRU Step 4 To secure the bracket assembly to the angle steel, use a torque wrench with an aperture of 16 mm (0.67 in.) to tighten the two M10 nuts with a torque of 40 Nm (354.03 lbfin.), as shown in Figure 7-33. Figure 7-33 Securing the bracket assembly

(1) Plastic screw cap Step 5 Install the RRU on the main mounting bracket until the RRU snaps shut, as shown in Figure 7-34. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 59 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-34 Installing the RRU on the main mounting bracket

----End 7.5 Installing the RRU on a Wall This section describes the procedure for installing the RRU on a wall and the precautions that must be taken during the installation. Prerequisites Context Procedure The hoist clamp on the main mounting bracket is secured properly. The wall on which RRUs are installed must meet the following requirements:

When a single RRU is installed, the wall has a capacity of bearing at least four times the weight of the RRU. Expansion bolts must be tightened with a torque of 15 Nm (265.52 lbfin.) to ensure the bolts work properly and the wall remains intact without cracks in it. Step 1 Remove the plastic screw caps, M10 nuts, spring washers, flat washers, auxiliary brackets, and M10x150 bolts in sequence. Then, use the main mounting bracket to secure the RRU to a wall. Step 2 Place the main mounting bracket against the installation position, use a level to verify that the main mounting bracket is placed horizontally, and then mark anchor points with a marker, as shown in Figure 7-35. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 60 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-35 Marking the anchor points 7 Installing the RRU

(1) Main mounting bracket

(2) RRU It is recommended that the main mounting bracket be 1200 mm to 1600 mm (47.24 in. to 62.99 in.) above the ground. Figure 7-36 Expansion bolt assembly

(1) M8x85 bolt

(2) Spring washer 8

(3) Plastic tube

(4) Flat washer 8

(5) Expansion tube Step 3 Drill holes at the anchor points, and then install expansion bolt assemblies, as shown in Figure 7-37. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 61 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-37 Drilling a hole and installing an expansion bolt assembly 1. Use a hammer drill with a 12 bit to drill holes vertically at the marked anchor points. Ensure that the depth of each hole ranges from 55 mm to 60 mm (2.17 in. to 2.36 in.). Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. 2. Vertically insert the M8x85 expansion bolts into the mounting holes and use a rubber mallet to knock them until they are buried in the holes. 3. Partially tighten the expansion bolts clockwise. 4. Loosen the expansion bolts counterclockwise and then remove the M8x85 expansion bolts, spring washers, plastic tubes, and flat washers in sequence. After completely removing an expansion bolt, store the plastic tube properly. Step 4 Use the two removed M8x85 expansion bolts to secure the main mounting brackets to the wall. Then, use a torque socket to tighten the nuts of the expansion bolts with a torque of 15 Nm (265.52 lbfin.), as shown in Figure 7-38. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 62 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 7 Installing the RRU Figure 7-38 Securing the main mounting bracket to a wall

(1) M8x85 expansion bolts

(2) Spring washers

(3) Flat washers Step 5 Install the RRU on the main mounting bracket until the RRU snaps shut, as shown in Figure 7-39. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 63 eRelay DBS3900 RRU3252/RRU3256 Installation Guide Figure 7-39 Installing the RRU 7 Installing the RRU

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 64 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables 8 Installing RRU Cables About This Chapter This chapter describes the procedure for installing RRU cables. 8.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. 8.2 Cable Connections This section describes the cable connections for a single RRU and multiple RRUs. 8.3 Installation Process This section describes the process of installing RRU cables. 8.4 RRU Cable List This section describes RRU cable connections. 8.5 Installing an RRU PGND Cable This section describes the procedure for installing an RRU PGND cable. 8.6 Installing an RRU RF Jumper This section describes the procedure for installing an RRU RF jumper. 8.7 Installing an RRU Alarm Cable This section describes the procedure for installing an RRU alarm cable. 8.8 Installing an RRU AISG Multi-Wire Cable and an RRU AISG Extension Cable This section describes the procedures for installing an RRU AISG multi-wire cable and an RRU AISG extension cable. 8.9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover plate of an RRU cabling cavity. 8.10 Installing an RRU Power Cable This section describes the procedure for installing an RRU power cable. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 65 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables 8.11 Installing an Optical Fiber Cable This section describes the procedure for installing an optical fiber cable. 8.12 Closing the Cover Plate of an RRU Cabling Cavity This section describes the procedure for closing the cover plate of an RRU cabling cavity. 8.1 Cabling Requirements Cables must be routed according to the specified cabling requirements to prevent signal interference. If a cable listed below is not required, skip the routing requirements of the cable. General Cabling Requirements Requirements for Bending Radius The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.), and the bending radius of the 5/4'' feeder must be more than 380 mm (14.96 in.). The bending radius of the 1/4'' jumper, ordinary 1/2'' jumper, super-flexible 1/2'' jumper, and RG-8U jumper must be more than 35 mm (1.38 in.), 127 mm (5 in.), 50 mm (1.97 in.), and 50 mm (1.97 in.), respectively. The bending radius of the power cable or PGND cable must be at least three times the diameter of the cable. The bending radius of a fiber optic cable is at least 20 times the diameter of the fiber optic cable, and the minimum bending radius of the breakout cable at each end of the fiber optic cable is 30 mm (1.18 in.). The bending radius of the E1/T1 cable must be at least three times the diameter of the cable. The bending radius of the signal cable must be at least five times the diameter of the cable. Requirements for Cable Binding The same types of cable must be bound together. Different types of cable must be separately routed with the minimum spacing of 30 mm

(1.18 in.) and cannot be entangled. The cables must be bound tightly and neatly. The sheaths of the cables must not be damaged. Cable ties are installed in the same direction, and those at the same horizontal line must be in a straight line. The excess of indoor cable ties is trimmed off, and the excess of outdoor cable ties allows about 5 mm (0.2 in.), without remaining rough edges. Labels or nameplates must be attached to both ends, joints, or turns of cables after they are installed. Security Requirements Cables should be placed away from sharp objects or wall burrs. If these positions are inevitable, protect the cables with protection pipes. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 66 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Cables must be routed away from heat sources, or heat-insulation materials are added between cables and heat sources. Sufficient slack (recommended for about 0.1 m [0.33 ft.]) is provided in cables at turns or the position close to a device, facilitating cable and device maintenance. Indoor Cabling Requirements Cables are routed indoors through the feeder window. Drip loops must be made outside the feeder window, and the requirements for the minimum bending radius are met. When cables are routed indoors, engineers are required indoors for cooperation. The feeder window must be waterproofed. Outdoor Cabling Requirements Cables routed outdoors must be led through a pipe when they may be damaged. AC power cables, transmission cables, and cables buried in the ground must be protected. If cables at the cabinet bottom need to be routed through a pipe along the ground, lead the pipe into the cabinet base for about 3 m (9.84 ft.) to 5 m (16.4 ft.), not into the cabinet. Block the pipe with waterproof tape or silicon gel, and secure the pipe to the cable hole at the cabinet bottom with metal piece. If cables at the cabinet bottom need to be routed through a pipe along the metal cable trough, do not lead the pipe into the cabinet base. The cable trough must be sealed and routed through the cable hole at the cabinet bottom. Cables are secured with cable clips. Cables are routed neatly along the specified cabling direction and secured with cable clips. The positions for cable clips are determined onsite. For example, the cable clips for the 7/8" feeder are installed at the spacing of 1.5 m (4.92 ft.) to 2 m (6.56 ft.) in the same direction, and the cable clips for the power cables are installed at the spacing of 1 m

(3.28 ft.) to 1.5 m (4.92 ft.) in the same direction. Cable clips must be vertical with cables, and the cables in a cable clip must be parallel. After routing cables neatly and correctly, tighten the screws on cable clips. Secure cables on the cable tray, as shown in Figure 8-1. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 67 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-1 Securing cables on the cable tray Secure cables on the tower, as shown in Figure 8-2. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 68 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-2 Securing cables on the tower Special Cabling Requirements Cabling Requirements for Power Cables Power cables must be installed in the position specified in engineering design documents. If the length of power cables is insufficient, replace the cables rather than adding connectors or soldering joints to lengthen the cables. Cables must be routed by only qualified and trained personnel before all preparations are made. Cables are routed in an untangled and orderly fashion. If DC power cables need to be routed on the tower platform, lay out the cables on the guardrail with the shortest distance and route the cables along the guardrail. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 69 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables If DC power cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables. Cabling Requirements for PGND Cables PGND cables for the base station must be connected to the same ground bar. PGND cables must be buried in the ground or routed indoors. They should not be routed overhead before they are led into the equipment room. The exterior of the coaxial wire and the shield layer of the shielded cable must have proper electrical contact with the metal surface of the equipment to which they are connected. PGND cables and signal cables must be installed in an untangled and orderly fashion. A certain distance must be reserved between them to prevent interference from each other. Fuses or switches must not be installed on the PGND cables. Other devices must not be used for electrical connections of the PGND cables. All the metal parts in the housing of the equipment must be reliably connected to the ground terminal. Cabling Requirements for E1 Cables E1 cables must not cross power cables, PGND cables, or RF cables when routed. If transmission cables are routed with power cables, PGND cables, or RF cables in parallel, the spacing between them must be greater than 30 mm (1.18 in.). E1 cables are routed straightly and bound neatly with cable ties. Sufficient slack is provided in E1 cables at turns. E1 cables cannot be squeezed by the cabinet door when routed through the cabinet, as shown in Figure 8-3. Figure 8-3 E1 cables routed through the cabinet Cabling Requirements for Fiber Optic Cables Fiber optic cables must be routed by at least three qualified and trained personnel before all preparations are made. Fiber optic cables are used within the temperature range of -40C to 60C. If the current temperature is out of the range, make protection measures or route the cables again. Cables are routed in an untangled and orderly fashion. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 70 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Do not bind fiber optic cables at turns. Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the cables away from sharp objects. When fiber optic cables are routed, the excess of the cables must be coiled around special devices, such as a fiber coiler. When coiling fiber optic cables, apply even strength. Do not bend the cables with force. Vacant optical connectors must be covered with dustproof caps. Fiber optic cables cannot be squeezed by the cabinet door when routed through the cabinet, as shown in Figure 8-4, Figure 8-5 and Figure 8-6. Figure 8-4 CPRI fiber optic cables routed through the cabinet (1) Figure 8-5 CPRI fiber optic cables routed through the cabinet (2) Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 71 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-6 FE/GE cables routed through the cabinet If fiber optic cables need to be routed on the tower platform, lay out the cables on the guardrail with the shortest distance and route the cables along the guardrail. If fiber optic cables need to be routed close to a device on the tower, secure the cables to the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables. If the fiber optic cables close to a device are too long, coil the excess of the cables and secure them on the tower. 8.2 Cable Connections This section describes the cable connections for a single RRU and multiple RRUs. A lower-level RRU obtains power directly from the external power system, but not from an upper-level RRU using a power cable. For the cable connection between an RRU and an RGPS antenna (optional), refer to the document delivered with the RGPS antenna. For the cable connection between an RRU and an AUF (optional), refer to the document delivered with the AUF. Figure 8-7 shows the cable connections adopted for a single RRU when the alarm monitoring function is provided. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 72 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-7 Cable connections for a single RRU (1)

(1) PGND cable

(2) RRU RF jumper

(3) RRU alarm cable

(4) CPRI optical fiber cable

(5) RRU power cable

(6) RGPS signal cable Figure 8-8 shows the cable connections adopted for a single RRU when the remote electrical tilt (RET) function is provided. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 73 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-8 Cable connections for a single RRU (2)

(1) PGND cable

(2) RRU RF jumper

(3) RRU AISG multi-wire cable

(4) RRU AISG extension cable

(5) CPRI optical fiber cable

(6) RRU power cable

(7) RGPS signal cable Figure 8-9 shows the cable connections adopted for multiple RRUs when the alarm monitoring function is provided. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 74 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-9 Cable connections for multiple RRUs (1)

(1) PGND cable

(2) RRU RF jumper

(3) RRU alarm cable

(4) CPRI optical fiber cable or SFP high-speed cable for cascading RRUs

(5) RRU power cable

(6) RGPS signal cable If you must cascade two or more RRUs in the same cell, for example, to expand the capacity, install the alarm cable to the RRU at the last level. Figure 8-10 shows the cable connections adopted for multiple RRUs when the remote electrical tilt (RET) function is provided. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 75 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-10 Cable connections for multiple RRUs (2)

(1) PGND cable

(2) RRU RF jumper

(4) RRU AISG extension cable

(5) CPRI optical fiber cable or SFP high-speed cable for cascading RRUs

(7) RGPS signal cable

(3) RRU AISG multi-wire cable

(6) RRU power cable 8.3 Installation Process This section describes the process of installing RRU cables. Figure 8-11 shows the process of installing RRU cables. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 76 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-11 Process of installing RRU cables 8.4 RRU Cable List This section describes RRU cable connections. Table 8-1 lists RRU cables. Table 8-1 RRU cables Cable One End The Other End Connector RRU PGND Cable OT terminal

(M6) Connected to... Ground terminal on the RRU Connector Connected to... OT terminal

(M8) Ground terminal on the ground bar RRU Power Cable Tool-less female connector

(pressfit type) NEG(-) and RTN(+) ports on the RRU Tool-less female connector

(pressfit type) One of RRU0 to RRU5 ports on the EPS OT terminal One of LOAD0 Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 77 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Cable One End The Other End Connector Connected to... Connector Connected to...

(M4) DLC connector to LOAD5 ports on the DCDU One of LOAD4 to LOAD9 ports on the PDU CPRI port on the LBBP in the BBU CPRI0/IR0 port on the RRU Type N connector Antenna system Round 12-pin connector RGPS antenna CPRI Fiber Optic Cable DLC connector RRU RF Jumper Type N connector RGPS Jumper

(optional) Waterproofed DB15 connector CPRI0/IR0 port on the RRU CPRI1/IR1 port on the RRU ANT0 to ANT3 ports on the RRU Remote Global Positioning System

(RGPS) port at the RRU bottom SFP High-Speed Cable for Cascaded RRUs

(optional) RRU Alarm Cable

(optional) RRU AISG Multi-Wire Cable

(optional) SFP20 male connector CPRI1 port on the RRU SFP20 male connector CPRI0 port on the RRU Waterproofed DB9 male connector RET/EXT_AL M port on the RRU Cord end terminal External alarm device Waterproofed DB9 male connector RET/EXT_AL M port on the RRU Standard AISG female connector Standard AISG male connector on the remote control unit

(RCU) or on the AISG extension cable RRU AISG Extension Cable

(optional) Standard AISG male connector Standard AISG female connector on the AISG multi-wire cable Standard AISG female connector Standard AISG male connector on the RCU Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 78 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables 8.5 Installing an RRU PGND Cable This section describes the procedure for installing an RRU PGND cable. Context Procedure The minimum cross-sectional area of an RRU PGND cable is 16 mm2 (0.025 in.2). The cable has an M6 OT terminal at one end and an M8 terminal at the other end. Step 1 Prepare an RRU PGND cable. 1. Cut the cable to the required length based on the actual cable route. 2. Add an OT terminal to each end of the cable by referring to Assembling the OT Terminal and the Power Cable. Step 2 Install the RRU PGND cable. Connect the M6 OT terminal at one end of the PGND cable to the ground terminal at the RRU bottom and the M8 OT terminal at the other end to the external ground bar, as shown in Figure 8-12. Figure 8-12 Installing an RRU PGND cable Crimp OT terminals in correct directions, as shown in Figure 8-13. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 79 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-13 Correct direction of an OT terminal Step 3 Label the installed cable by referring to Attaching a Cable-Tying Label.

----End 8.6 Installing an RRU RF Jumper This section describes the procedure for installing an RRU RF jumper. Context The RF ports on the RRU must be connected using RF jumpers to the mapping ANT0 to ANT3 ports on the antenna. Figure 8-14shows the mapping relationship between the RF ports and the antenna ports. Figure 8-14 The mapping relationship between the RF ports and the antenna ports The port labels in this figure are examples and for reference only. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 80 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Procedure Step 1 Connect the Type N connector at one end of the RRU RF jumper to the ANT port and use a torque wrench to tighten the connector with a torque of 1 Nm (12.39 lbfin.), as shown in Figure 8-15. Figure 8-15 Installing an RRU RF jumper On AC-powered electric railways, such as high speed railways, when leaky cables are connected to RRUs installed in tunnels, high-voltage-resistant DC blocks must be installed between RRU RF jumpers and the leaky cables to protect the RRUs against damage. Step 2 Connect the other end of the RF jumper to the external antenna system. Step 3 Waterproof the connectors of the RF jumper by referring to Figure 8-16. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 81 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-16 Waterproofing a connector of the RF jumper

(1) PVC insulation tape

(2) Waterproof tape Before wrapping the waterproof tape, stretch the tape evenly until the length of the tape is twice its original length. Before wrapping the PVC insulation tape, do not stretch the PVC insulation tape. Ensure that each layer of tape overlaps more than 50% of the preceding layer. Stretch and press the tape tightly to avoid wrinkles or spaces. Ensure that the tape is tightly wrapped and stuck and will not fall off. Ensure that the adhesive surface of the tape overlaps the lower layer. Cable ties, cutting at the position of 3mm ~5mm far from head. 1. Wrap each connector with one layer of insulation tape from bottom up. 2. Wrap each connector with three layers of waterproof tape, first from bottom up, then from top down, and finally from bottom up. Do not cut the tape until all the three layers of the tape are already wrapped. Wrap each layer of tape around the connector tightly. 3. Wrap each connector with three layers of PVC insulation tape, first from bottom up, then from top down, and finally from bottom up. Do not cut the tape until all the three layers of the tape are already wrapped. Wrap each layer of tape around the connector tightly. Step 4 Retain the dustproof caps on vacant antenna connectors and waterproof the dustproof caps, as shown in Figure 8-17. Do not remove dustproof caps from vacant antenna connectors. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 82 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-17 Waterproofing a dustproof cap

(1) Dustproof cap

(2) PVC insulation tape

(3) Waterproof tape Before wrapping the waterproof tape, stretch the tape evenly until the length of the tape is twice its original length. Before wrapping the PVC insulation tape, do not stretch the PVC insulation tape. Ensure that each layer of tape overlaps more than 50% of the preceding layer. Stretch and press the tape tightly to avoid wrinkles or spaces. Ensure that the tape is tightly wrapped and stuck and will not fall off. Ensure that the adhesive surface of the tape overlaps the lower layer. Cable ties, cutting at the position of 3mm~5mm far from head. 1. Verify that dustproof caps are not removed. 2. Wrap each dustproof cap with one layer of PVC insulation tape from bottom up. 3. Wrap each dustproof cap with three layers of waterproof tape, first from bottom up, then from top down, and finally from bottom up. Do not cut the tape until all the three layers of the tape are already wrapped. Wrap each layer of tape around the cap tightly. 4. Wrap each dustproof cap with three layers of PVC insulation tape, first from bottom up, then from top down, and finally from bottom up. Do not cut the tape until all the three layers of the tape are already wrapped. Wrap each layer of tape around the connector tightly. Step 5 Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. Step 6 Label the installed cable by referring to Attaching a Sign Plate Label. Step 7 Attach colored insulation tapes to the jumper by referring to Attaching the Color Ring.

----End 8.7 Installing an RRU Alarm Cable This section describes the procedure for installing an RRU alarm cable. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 83 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Procedure Step 1 Connect the DB9 connector at one end of the RRU alarm cable to the RET/EXT_ALM port on the RRU, and connect the eight cord end terminals at the other end to the external alarm device, as shown in Figure 8-18. Figure 8-18 Installing an RRU alarm cable Step 2 Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. Step 3 Label the installed cable by referring to Attaching an L-Shaped Label.

----End 8.8 Installing an RRU AISG Multi-Wire Cable and an RRU AISG Extension Cable This section describes the procedures for installing an RRU AISG multi-wire cable and an RRU AISG extension cable. Context Procedure When the distance between an RRU and a Remote Control Unit (RCU) is longer than 5 m

(16.4 ft.), an AISG multi-wire cable is not long enough to connect the RRU and the RCU. In this case, an AISG extension cable is used to extend the AISG multi-wire cable. Install an AISG multi-wire cable that is not configured with an AISG extension cable. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 84 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables 1. Connect the waterproofed DB9 connector at one end of the AISG multi-wire cable to the RET/EXT_ALM port on the bottom of the RRU, as shown in Figure 8-19. Figure 8-19 Installing an RRU AISG multi-wire cable 2. Connect the other end of the cable to the standard AISG male connector on the RCU. 3. Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. 4. Label the installed cable by referring to Attaching an L-Shaped Label. Install an AISG multi-wire cable that is configured with an AISG extension cable. 1. Connect the waterproofed DB9 connector at one end of the AISG multi-wire cable to the RET/EXT_ALM port on the bottom of the RRU, and the other end of the cable to the standard AISG male connector of the AISG extension cable, as shown in Figure 8-20. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 85 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-20 Installing an RRU AISG multi-wire cable 2. Connect the other end of the AISG extension cable to the standard AISG male connector on the RCU, as shown in Figure 8-21. Figure 8-21 Installing an RRU AISG multi-wire cable 3. Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. 4. Label the installed cable by referring to Attaching an L-Shaped Label. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 86 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables

----End 8.9 Opening the Cover Plate of an RRU Cabling Cavity This section describes the procedure for opening the cover plate of an RRU cabling cavity. Procedure Step 1 Wear ESD gloves. Take proper ESD protection measures, for example, wear ESD gloves, to prevent electrostatic damage to the boards, modules, or electronic components. Step 2 Use an M4 Phillips screwdriver to loosen the protection screw on the cover plate of the RRU cabling cavity, and pull the handle outwards to open the cover plate, as shown in Figure 8-22. Figure 8-22 Opening the cover plate of the RRU cabling cavity

(1) Protection screw Figure 8-23 shows the RRU cabling cavity. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 87 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-23 RRU cabling cavity

(1) Cover plate

(2) Cable diagram on label

(3) Cable trough for the optical fiber cable

(4) Cable trough for the power cable

(5) Waterproof block

(6) Clip

(7) Cabling cavity

-

-

Step 3 Loosen the screws on the clips, and open the clips, as shown Figure 8-24. Open the clips only for the cables to be installed. Figure 8-24 Opening clips Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 88 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables

----End 8.10 Installing an RRU Power Cable This section describes the procedure for installing an RRU power cable. Prerequisites A tool-less female connector (pressfit type) is added to the RRU power cable on the RRU side. For details, see 11.1 Adding an Easy Power Receptacle (Pressfit Type) Connector to an RRU Power Cable. Context When installing the RRU power cable, connect the RRU power cable first to the RRU and then to the power device. Operations in the reverse sequence may cause damage to the components and injury of human bodies. Procedure Install an RRU power cable that feeds power to an RRU from a DCDU when the DCDU is configured. 1. Connect the tool-less female connector (pressfit type) at one end of the RRU power cable to the power supply socket on the RRU, as shown in Figure 8-25. Figure 8-25 Installing an RRU power cable Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 89 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Ensure that the exposed shield layer of the power cable is properly tightened using the clip. 2. Connect the other end of the RRU power cable to the output terminal on the DCDU. 3. Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. 4. Label the installed cable by referring to Attaching a Cable-Tying Label. Install an RRU power cable that feeds power to an RRU from the embedded power system (EPS) when the EPS is configured. 1. Connect the tool-less female connector (pressfit type) at one end of the RRU power cable to the power supply socket on the RRU, as shown in Figure 8-25. 2. Connect the tool-less female connector (pressfit type) at one end of the RRU power cable to the RRU0 port on the EPS subrack. The blue core wire in the tool-less female connector (pressfit type) is connected to the left port on the EPS subrack, and the black/brown core wire is connected to the right port on the EPS subrack. The EPS can supply power to a maximum of six RRUs. The RRU power cable can be connected to any of RRU0 to RRU5 ports on the EPS subrack. 3. Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. 4. Label the installed cable by referring to Attaching a Cable-Tying Label.

----End 8.11 Installing an Optical Fiber Cable This section describes the procedure for installing an optical fiber cable. Prerequisites Before the installation, distinguish single-mode optical modules from multi-mode optical modules by either of the following means:

SM and MM labels on an optical module: SM indicates a single-mode optical module, and MM indicates a multi-mode optical module. Color of the puller on an optical module: Blue indicates a single-mode optical module, and black or gray indicates a multi-mode optical module. The optical modules to be installed must match the rates of their corresponding CPRI ports. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 90 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Context Procedure A CPRI optical fiber cable transmits CPRI signals between a BBU and an RRU. Step 1 Lower the pullers of two optical modules, insert one optical module into the CPRI0 port on the RRU and the other optical module into the CPRI port on the BBU, and raise the pullers, as shown in Figure 8-26. Figure 8-26 Installing an optical module The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal. Therefore, you must insert an fiber optic cable into an unpacked optical module within 20 minutes. Step 2 Connect the end labeled 1A and 1B of the optical fiber cable to the optical module on the RRU side, as shown in Figure 8-27. Figure 8-27 Installing an CPRI optical fiber cable Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 91 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables To avoid any damage to optical fiber cables, secure the optical fiber cable in the cable clip near the power cable to leave some slack at the bend. Tighten the screws on the cable clip with a torque of 1.4 Nm (12.39 lbfin.). Step 3 Connect the end labeled 2A and 2B of the optical fiber cable to the optical module on the BBU side. Step 4 Route the cable by referring to Cabling Requirements. Then, use cable ties to bind the cable. Step 5 Label the optical fiber cable by referring to Attaching an L-Shaped Label.

----End 8.12 Closing the Cover Plate of an RRU Cabling Cavity This section describes the procedure for closing the cover plate of an RRU cabling cavity. Procedure Step 1 Close clips and use a torque screwdriver to tighten the screws on each clip with a torque of 1.4 Nm (12.39 lbfin.), as shown in Figure 8-28. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 92 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-28 Closing clips Ensure that the exposed shield layer of the power cable is properly tightened using the clip. Step 2 Insert waterproof blocks into vacant cable troughs in the cabling cavity, as shown in Figure 8-29. Figure 8-29 Correct placement of waterproof blocks Step 3 Close the cover plate of the RRU cabling cavity, and use a torque screwdriver to tighten the screws on the cover plate with a torque of 1.4 Nm (12.39 lbfin.), as shown in Figure 8-30. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 93 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 8 Installing RRU Cables Figure 8-30 Closing the cover plate of the RRU cabling cavity

(1) Protection screw Before tightening the screws on the cover plate, ensure that cables and waterproof blocks are properly inserted into troughs. Step 4 Take off the ESD gloves, and pack up all the tools.

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 94 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 9 Checking the RRU Hardware Installation 9 Checking the RRU Hardware Installation This section describes how to check RRU hardware installation after the installation is complete. Table 9-1 provides the checklist for the RRU hardware installation. Table 9-1 Checklist for the RRU hardware installation SN Item 1 2 3 4 5 6 7 8 9 10 11 The position for each device conforms to the engineering drawing and meets the space requirement. Sufficient space is reserved for equipment maintenance. The RRU is securely installed. The cover plate is securely installed on the RRU cabling cavity. Waterproof blocks are securely installed in vacant cable troughs of the RRU cabling cavity, and the cover plate for the cabling cavity is securely installed. In addition, vacant RF ports are covered with dustproof caps and the caps are waterproofed. There are no connectors or joints on each power cable or PGND cable. The terminals at two ends of each power cable or PGND cable are securely soldered or crimped. None of power cables and PGND cables can be short-circuited or reversely connected. In addition, these cables are not damaged or broken. Power cables and PGND cables are separately bound from other cables. The protection grounding of the RRU and the surge protection grounding of the building share one group of ground conductors. The connectors of each signal cable are intact and securely linked, and these cables are not damaged or broken. Labels are correct, legible, and complete at both ends of each cable, feeder, and jumper. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 95 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 10 Powering On an RRU 10 Powering On an RRU This section describes how to check the power-on status of an RRU after all the devices are installed. Figure 10-1 shows the RRU power-on check process. Figure 10-1 Powering on an RRU Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 96 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 10 Powering On an RRU The RRU is provided with -48 V DC power and the external voltage ranges from -32 V DC to -60 V DC. When the RRU is working properly, the RUN indicator blinks one second on and one second off, and the ALM indicator is steady off. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 97 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 11 Appendix 11 Appendix About This Chapter This section describes the procedure for adding an easy power receptacle (pressfit type) connector. 11.1 Adding an Easy Power Receptacle (Pressfit Type) Connector to an RRU Power Cable This section describes the procedure for adding an easy power receptacle (pressfit type) connector to an RRU power cable. 11.1 Adding an Easy Power Receptacle (Pressfit Type) Connector to an RRU Power Cable This section describes the procedure for adding an easy power receptacle (pressfit type) connector to an RRU power cable. Procedure Step 1 Open the cabling cavity and take out the easy power receptacle (pressfit type) connector. Then, mark the lengths of the power cable for different operations based on the label on the cover of the cabling cavity, as shown in Figure 11-1. Figure 11-1 Marking the lengths of the RRU power cable for different operations Step 2 Use a cable cutter and wire stripper to strip off the specified length of the sheath from the power cable, as shown in Figure 11-2. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 98 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 11 Appendix Figure 11-2 Stripping off the specified length of sheath from the power cable Step 3 Strip off the sheath from each core wire, as shown in Figure 11-3. Figure 11-3 Stripping off the sheath from each core wire Ensure that the length of the sheath stripped off from each core wire must match the length of the notch in the easy power receptacle (pressfit type) connector, as shown in Figure 11-4. Figure 11-4 Stripping off the sheath from each core wire Step 4 Strip off the sheath from the power cable to expose its shield layer, as shown in Figure 11-5. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 99 eRelay DBS3900 RRU3252/RRU3256 Installation Guide 11 Appendix Figure 11-5 Stripping off the sheath from the power cable to expose its shield layer Step 5 Use a Phillips screwdriver to loosen the screws, as shown in Figure 11-6. Figure 11-6 Loosening screws Step 6 Connect the blue core wire labeled NEG(-) to the - port and connect the black core wire labeled RTN(+) to the + port on the easy power receptacle (pressfit type) connector. Then, tighten the screws, as shown in Figure 11-7. Figure 11-7 Adding an easy power receptacle (pressfit type) connector to a power cable Ensure that only a 1.5 mm (0.06 in.) core wire is exposed out of the connector and that the exposed part cannot be folded, as shown in Figure 11-8. Issue Draft A (2012-11-30) Huawei Proprietary and Confidential 100 Copyright Huawei Technologies Co., Ltd. eRelay DBS3900 RRU3252/RRU3256 Installation Guide 11 Appendix Figure 11-8 Easy power receptacle (pressfit type) connectors installed in different ways If the wire connections are incorrect, the equipment cannot be powered on. Correctly connect the wires 10 seconds later. Step 7 Confirm that the core wires are securely connected to the connector, as shown in Figure 11-9. Figure 11-9 Correct installation of an easy power receptacle (pressfit type) connector

----End Issue Draft A (2012-11-30) Huawei Proprietary and Confidential 101 Copyright Huawei Technologies Co., Ltd.