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AAU3940 Hardware Maintenance Guide Issue Date 01 2015-01-15 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 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i AAU3940 Hardware Maintenance Guide About This Document About This Document Overview This document describes routine maintenance for an AAU3940 such as equipment maintenance and power-on and power-off operations. It also describes how to replace the AAU, modules in it, and optical modules. Product Version The following table lists the product versions related to this document. Product Name Solution Version Product Version DBS3900 l SRAN10.0 and later l RAN17.0 and later l eRAN8.0 and later V100R010C00 and later Intended Audience This document is intended for:
l Base station installation personnel l System engineer l Site maintenance personnel Organization 1 Changes in AAU3940 Hardware Maintenance Guide This chapter describes changes in AAU3940 Hardware Maintenance Guide. 2 Routine Hardware Maintenance Items Routine hardware maintenance for an AAU improves reliability of the AAU. You are advised to perform routine hardware maintenance yearly. 3 Powering On and Powering Off an AAU Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii AAU3940 Hardware Maintenance Guide About This Document This section describes the process and precautions for powering on and powering off an AAU. 4 Replacing an AAU This section describes how to replace a faulty AAU. Replacing an AAU interrupts all the services carried by the AAU and causes alarms. 5 Replacing the Optical Module You must disconnect the fiber optic cable from an optical module before replacing the optical module. Disconnecting the fiber optic cable interrupts transmission of CPRI signals. Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol Description Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. Calls attention to important information, best practices and tips. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. General Conventions The general conventions that may be found in this document are defined as follows. 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. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii AAU3940 Hardware Maintenance Guide About This Document Description Book titles are in italics. Examples of information displayed on the screen are in Courier New. Convention Italic Courier New Command Conventions The command conventions that may be found in this document are defined as follows. Description The keywords of a command line are in boldface. Command arguments are in italics. Items (keywords or arguments) in brackets [ ] are optional. Optional items are grouped in braces and separated by vertical bars. One item is selected. Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected. Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected. Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected. Convention Boldface Italic
[ ]
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... }*
[ x | y | ... ]*
GUI Conventions The GUI conventions that may be found in this document are defined as follows. Description Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK. Multi-level menus are in boldface and separated by the ">"
signs. For example, choose File > Create > Folder. Convention Boldface
>
Keyboard Operations The keyboard operations that may be found in this document are defined as follows. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv AAU3940 Hardware Maintenance Guide About This Document Description Press the key. For example, press Enter and press Tab. 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. Format Key Key 1+Key 2 Key 1, Key 2 Mouse Operations The mouse operations that may be found in this document are defined as follows. Action Click Double-click Drag 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 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. v AAU3940 Hardware Maintenance Guide Contents Contents About This Document.....................................................................................................................ii 1 Changes in AAU3940 Hardware Maintenance Guide............................................................1 2 Routine Hardware Maintenance Items.....................................................................................2 3 Powering On and Powering Off an AAU.................................................................................4 3.1 Powering on an AAU.....................................................................................................................................................5 3.2 Powering off an AAU.....................................................................................................................................................6 4 Replacing an AAU.........................................................................................................................8 5 Replacing the Optical Module..................................................................................................16 Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vi AAU3940 Hardware Maintenance Guide 1 Changes in AAU3940 Hardware Maintenance Guide 1 Changes in AAU3940 Hardware Maintenance Guide This chapter describes changes in AAU3940 Hardware Maintenance Guide. 01 (2015-01-15) This is the first commercial release. Compared with issue Draft A (2014-10-30), no information is added to or deleted from this issue. Compared with issue Draft A (2014-10-30), this issue includes the following changes. Topic Entire document Draft A (2013-10-30) This is a draft. Change Description Some figure updates caused by the structure modification of the AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1 AAU3940 Hardware Maintenance Guide 2 Routine Hardware Maintenance Items 2 Routine Hardware Maintenance Items Routine hardware maintenance for an AAU improves reliability of the AAU. You are advised to perform routine hardware maintenance yearly. DANGER While working at heights, be careful not to drop any tools, equipment, or other objects. Falling objects may cause serious injury or death. Always wear a helmet and avoid standing in the danger area. The items in the following checklist are not mandatory but strongly recommended. Table 2-1 AAU routine hardware maintenance items No. Item 1 2 3 4 5 6 7 8 9 10 11 All AAUs are intact and securely installed, with all modules in the AAUs securely installed. All RF cables are free from wear, cuts, cracks, or other damage. All RF cable connectors are sealed and waterproofed properly. All RF cable conduits are in good condition. All power cables are free from wear, cuts, cracks, or other damage. All power cable connectors are in good condition. All power cable conduits are in good condition. All shield layers of power cables are in good condition. All power cables are sealed properly. All CPRI fiber optic cables are free from wear, cuts, cracks, or other damage. All screws on the cover plate of the maintenance cavity are tightened. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 2 AAU3940 Hardware Maintenance Guide No. Item 2 Routine Hardware Maintenance Items All RET cables (optional) are free from wear, cuts, cracks, or other damage. All RET cable (optional) connectors are sealed properly. 12 13 If any of the statements in the checklist cannot be complied with, perform the following corrective actions:
1. 2. Report any other faults found during the checking, because further repairs on towers can Tighten all connections. be performed only by trained and technically-qualified field engineers. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 3 AAU3940 Hardware Maintenance Guide 3 Powering On and Powering Off an AAU 3 Powering On and Powering Off an AAU About This Chapter This section describes the process and precautions for powering on and powering off an AAU. 3.1 Powering on an AAU This section describes the procedure and precautions for powering on an AAU. 3.2 Powering off an AAU An AAU can be powered off in two ways: normal power-off and emergency power-off. You must power off the AAU in a normal situation such as moving the equipment or anticipating a territorial blackout. You must also power off the AAU in an emergency such as a fire, smoke, or water damage. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 4 AAU3940 Hardware Maintenance Guide 3 Powering On and Powering Off an AAU 3.1 Powering on an AAU This section describes the procedure and precautions for powering on an AAU. Context DANGER l Before powering on a base station, check that the positive and negative wires of all power cables are correctly connected. Any incorrect power cable connection may cause damage to equipment or unexpected injuries of human body. l Exercise caution when performing a power-on check, which involves high voltage operations. Direct contact with the input voltage or indirect contact with the input voltage using a damp object may be fatal. NOTICE l After unpacking the RU, you must power on it within 24 hours. If you power off the RU for maintenance, you must restore power to the RU within 24 hours. l Keep a minimum of 7.35 m (24.11 ft) away from the front of the AAU after the RU is powered on and the AAU starts working. Process The following figure shows the process of powering on an AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 5 AAU3940 Hardware Maintenance Guide 3 Powering On and Powering Off an AAU Figure 3-1 Process of powering on an AAU NOTE l The normal input voltage of an AAU is 220 V AC and should range from 200 V AC to 240 V AC. l When an AAU is working properly, the RUN indicator is blinking (on for 1s and off for 1s), and the ALM indicator is steady off. For details about indicators, see AAU3940 Hardware Description. 3.2 Powering off an AAU An AAU can be powered off in two ways: normal power-off and emergency power-off. You must power off the AAU in a normal situation such as moving the equipment or anticipating a territorial blackout. You must also power off the AAU in an emergency such as a fire, smoke, or water damage. Procedure l Normal power-off 1. Set the corresponding circuit breaker on the power equipment for the AAU to OFF. l Emergency power-off NOTICE Emergency power-off may damage the AAU. Therefore, do not perform an emergency power-off in normal cases. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 6 AAU3940 Hardware Maintenance Guide 3 Powering On and Powering Off an AAU 1. 2. Shut off the external input power of the power equipment for the AAU. If time permits, set the corresponding circuit breaker on the power equipment for the AAU to OFF.
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 7 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU 4 Replacing an AAU Prerequisites This section describes how to replace a faulty AAU. Replacing an AAU interrupts all the services carried by the AAU and causes alarms. l The following tools and materials are available: an ESD wrist strap or a pair of ESD gloves, a flat-head screwdriver, a Phillips screwdriver, a torque screwdriver, a hex key, and an ESD box or bag. l The new component is intact, and its hardware version is the same as that of the component to be replaced. Procedure Step 1 Put on an ESD wrist strap or ESD gloves. NOTICE Take proper ESD protection measures, for example, put on an ESD wrist strap or ESD gloves, to prevent electrostatic damage to the boards, modules, or electronic components. Step 2 Instruct the U2000 administrator to block the faulty AAU by running the BLK BRD command. Step 3 Power off the AAU. For detailed operations, see 3.2 Powering off an AAU. Step 4 Remove cables from the faulty AAU. 1. Optional: If the AAU is installed on a pole top, remove the landscaping cover, as shown in the following figure. Skip this step if the AAU is installed on a pole or wall. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 8 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU Figure 4-1 Removing the landscaping cover from the AAU Loosen the screws on the cover of the maintenance cavity, and open the cover. 2. 3. Record cable connections on the AAU and remove all cables, including the power cable, CPRI fiber optic cable, and PGND cable. NOTE l If the AAU is installed on a pole or a wall, the PGND cable connects to the ground bolt on the attachment plate. In this case, remove the PGND cable. l If the AAU is installed on a pole top, the PGND cable connects to the ground bolt on the mounting support. In this case, do not remove the PGND cable. 4. Use an M6 inner hexagon torque screwdriver to tighten the screws on the maintenance cavity, and close the cover. Step 5 Remove the faulty AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 9 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU l If the AAU is installed on a pole or wall, use a torque screwdriver to loosen the captive bolts on the attachment plate and remove the AAU with both hands, as shown in Figure 4-2. l If the AAU is installed on a pole top, use a torque screwdriver to loosen the four bolts securing the AAU, and remove the AAU with both hands, as shown in Figure 4-3. Figure 4-2 Removing an AAU from a Pole or Wall a: Pole installation scenario b: Wall mounting scenario Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 10 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU Figure 4-3 Removing an AAU from a Pole Top Step 6 Install a new AAU. l In the pole installation or wall mounting scenario:
1. 2. Place the attachment plate on the maintenance cavity of the AAU, and use a torque screwdriver to tighten the screws to 7 Nm (61.95 lbfin.), as shown in Figure 4-4. Insert the attachment plate at the bottom of the AAU to the dovetail groove on the mounting bracket, and use a torque screwdriver to tighten the captive screws to 7 Nm
(61.95 lbfin.), as shown in Figure 4-5. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 11 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU Figure 4-4 Installing the attachment plate NOTE The following figure shows the installation in the wall mounting scenario, installing an AAU on a pole is the same. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 12 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU Figure 4-5 Securing the AAU l In the pole top installation scenario:
1. Hold the AAU tightly with both hands and insert it into the mounting bracket on the pole top, and use four M6 hexagon socket-head cap bolts to secure the AAU to 7 Nm
(61.95 lbfin.), as shown in the following figure. Install the landscaping cover. 2. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 13 AAU3940 Hardware Maintenance Guide 4 Replacing an AAU Figure 4-6 Installing an AAU on a pole top Step 7 Install AAU cables. 1. Open the cover for the maintenance cavity of the AAU. 2. Reconnect cables to the AAU according to the previous record, and ensure that waterproof blocks are inserted into vacant ports. 3. Close the cover for the maintenance cavity of the AAU. Step 8 Set the corresponding circuit breaker on the power equipment for the AAU to ON. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 14 AAU3940 Hardware Maintenance Guide NOTE 4 Replacing an AAU The status of indicators on an AAU that works normally is as follows:
l RUN indicator: blinking l ALM indicator: steady off l ACT indicator: steady on For details about indicators, see section "Ports and Indicators" in AAU3940 Hardware Description. Step 9 Take off the ESD wrist strap or ESD gloves, and pack up all tools. Step 10 Inform the remote engineer that the AAU has been replaced.
----End Follow-up Procedure l Place the replaced component into an ESD box or bag. Then, place the ESD box or bag into a foam-padded carton or the packing box of the new module. l Complete the fault form with detailed information about the replaced component. l Contact the local Huawei office to handle the faulty component. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 15 AAU3940 Hardware Maintenance Guide 5 Replacing the Optical Module 5 Replacing the Optical Module Prerequisites You must disconnect the fiber optic cable from an optical module before replacing the optical module. Disconnecting the fiber optic cable interrupts transmission of CPRI signals. l To confirm the type of a faulty module, perform the following steps:
Run the DSP BTSOPTMODULE command on the BSC LMT. Run the DSP OPTMODULE command on the NodeB LMT. Run the DSP SFP command on the eNodeB LMT. Identify the type of the faulty module according to the values of Rate, Wavelength, and Transmission mode in the output information of the command, and obtain a new optical module of the same type as the faulty one. The type of a new optical module is identified by the label on the new module. The following figure shows the label on an optical module. Figure 5-1 Label on an optical module
(1) Maximum rate
(2) Wavelength
(3) Transmission mode l The type and number of optical modules to be replaced are confirmed, and new optical modules are ready. l Required tools and materials are available, including an ESD box or bag, and ESD gloves. Context l Optical modules are inserted into the RX TX CPRI0 and RX TX CPRI1 ports on an AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 16 AAU3940 Hardware Maintenance Guide 5 Replacing the Optical Module l Optical modules are hot-swappable. l It takes about five minutes to replace an optical module on the AAU, which involves disconnecting the fiber optic cable, removing the faulty optical module, inserting a new optical module, reconnecting the fiber optic cable, and waiting for CPRI links to restore. Procedure Step 1 Put on an ESD wrist strap or a pair of ESD gloves. NOTICE Take proper ESD protection measures, for example, put on an ESD wrist strap or a pair of ESD gloves, to prevent electrostatic damage to the boards, modules, or other electronic components. Step 2 Record the connections of the optical module and fiber optic cable. Step 3 Press the latch on the optical connector, and then remove the connector from the faulty optical module, as shown in the following figure. Figure 5-2 Removing the cables CAUTION Do not look into the optical module without eye protection after removing the fiber optic cable from the optical module. Step 4 Lower the puller on the faulty optical module, and then pull the puller until the optical module is removed from the AAU. Step 5 Install a new optical module into the AAU according to the label on the module. NOTE The optical modules to be installed must match CPRI rates. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 17 AAU3940 Hardware Maintenance Guide 5 Replacing the Optical Module Step 6 Insert the optical connector into the new optical module. Step 7 Check the transmission of CPRI signals by observing the status of CPRI0 and CPRI1 indicators. For details about the status of the indicators, see the ports and indicators on an AAU of related manuals of RRU hardware descriptions. Step 8 Take off the ESD wrist strap or ESD gloves, and pack up all tools.
----End Follow-up Procedure l Place the replaced component into an ESD box or bag. Then, place the ESD box or bag into a foam-padded carton or the packing box of the new module. l Complete the fault form with detailed information about the replaced component. l Contact the local Huawei office to handle the faulty component. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 18
1 2 | InstallationGuide | Users Manual | 2.61 MiB |
AAU3940 Installation Guide Issue Date 01 2015-01-15 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 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i AAU3940 Installation Guide About This Document About This Document Overview This document describes procedures for installing an active antenna unit 3940 (AAU3940, which is shortened to AAU in this document) and its cables. It also provides the checklists for hardware installation. Product Version The following table lists the product versions related to this document. Product Name DBS3900 Solution Version Product Version l SRAN9.0 and later l RAN16.0 and later l eRAN7.0 and later V100R009C00 and later Intended Audience l System engineers l Installation personnel l Maintenance engineers Organization 1 Changes in AAU3940 Installation Guide This section describes changes in AAU3940 Installation Guide. 2 Overview Before installing an AAU, you must be familiar with its installation options and installation clearance requirements. 3 Installation Preparations Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii AAU3940 Installation Guide About This Document This chapter lists the tools and instruments that must be obtained before the installation. It also specifies the skills that the onsite personnel must have. 4 Unpacking Check Unpack and check the delivered equipment to ensure that all materials are included and intact. 5 Installation Process This chapter describes the process of installing an AAU. 6 (Optional) Installing an ODM This section describes the procedure and precautions for installing an ODM. 7 Preprocessing the AAU Maintenance Cavity Before installing an AAU, take power terminals out of its maintenance cavity and install optical modules. 8 Lifting an AAU Before installing an AAU on a pole, you need to lift the AAU to the installation position on the pole. 9 Installing an AAU This chapter describes the procedures for installing an AAU in different scenarios. 10 Installing AAU Cables This section describes the procedure and precautions for installing AAU cables. 11 Closing a Maintenance Cavity After all installation procedures are complete, you need to close the AAU maintenance cavity. 12 (Optional) Installing a Cord Cover for an ODM This section describes a procedure for installing a cord cover for an ODM after all cables are installed. 13 Adjusting the Horizontal Azimuth of an Antenna This section describes the procedure for adjusting the horizontal azimuth of an antenna based on coverage requirements after all cables are installed. 14 Installation Checklist This section describes the checklist for AAU hardware installation. 15 Powering on an AAU This section describes the procedure and precautions for powering on an AAU. 16 Appendix This chapter describes auxiliary operations during an AAU installation process. Conventions Symbol Conventions Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii AAU3940 Installation Guide About This Document The symbols that may be found in this document are defined as follows. Symbol Description Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. Calls attention to important information, best practices and tips. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. General Conventions The general conventions that may be found in this document are defined as follows. Convention Description Times New Roman Normal paragraphs are in Times New Roman. Names of files, directories, folders, and users are in boldface. For example, log in as user root. Book titles are in italics. Examples of information displayed on the screen are in Courier New. Boldface Italic Courier New Command Conventions The command conventions that may be found in this document are defined as follows. Convention Boldface Description The keywords of a command line are in boldface. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv AAU3940 Installation Guide About This Document Convention Description Command arguments are in italics. Items (keywords or arguments) in brackets [ ] are optional. Optional items are grouped in braces and separated by vertical bars. One item is selected. Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected. Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected. Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected. Italic
[ ]
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... }*
[ x | y | ... ]*
GUI Conventions The GUI conventions that may be found in this document are defined as follows. Description Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK. Multi-level menus are in boldface and separated by the ">"
signs. For example, choose File > Create > Folder. Convention Boldface
>
Keyboard Operations The keyboard operations that may be found in this document are defined as follows. Description Press the key. For example, press Enter and press Tab. 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. Format Key Key 1+Key 2 Key 1, Key 2 Mouse Operations The mouse operations that may be found in this document are defined as follows. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. v AAU3940 Installation Guide Action Click Double-click Drag About This Document 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 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vi AAU3940 Installation Guide Contents Contents About This Document.....................................................................................................................ii 1 Changes in AAU3940 Installation Guide..................................................................................1 2 Overview.........................................................................................................................................2 2.1 Installation Scenario.......................................................................................................................................................3 2.2 Installation Clearance Requirements..............................................................................................................................9 2.3 AAU Mounting Kits.....................................................................................................................................................11 2.4 ODM Description.........................................................................................................................................................12 2.5 Surge Protection Requirements....................................................................................................................................15 3 Installation Preparations............................................................................................................17 3.1 Documents....................................................................................................................................................................18 3.2 Tools and Instruments..................................................................................................................................................18 3.3 Requirements for Onsite Personnel..............................................................................................................................19 4 Unpacking Check........................................................................................................................21 5 Installation Process.....................................................................................................................23 6 (Optional) Installing an ODM..................................................................................................25 7 Preprocessing the AAU Maintenance Cavity.........................................................................30 8 Lifting an AAU.............................................................................................................................34 9 Installing an AAU........................................................................................................................37 9.1 Installing an AAU on a Pole.........................................................................................................................................38 9.2 Installing an AAU on the Top of a Pole.......................................................................................................................44 9.3 Installing an AAU on a Wall........................................................................................................................................48 10 Installing AAU Cables..............................................................................................................55 10.1 Cabling Requirements................................................................................................................................................56 10.2 Installing an AAU PGND Cable................................................................................................................................62 10.3 Installing an AAU Power Cable.................................................................................................................................67 10.4 Installing an ODM Power Cable................................................................................................................................72 10.5 Installing a Trunk CPRI Fiber Optic Cable Between an ODM and a BBU...............................................................73 10.6 Installing a CPRI Fiber Optic Cable Between an AAU and a BBU or Between an AAU and an ODM...................80 Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vii AAU3940 Installation Guide Contents 11 Closing a Maintenance Cavity................................................................................................86 12 (Optional) Installing a Cord Cover for an ODM.................................................................87 13 Adjusting the Horizontal Azimuth of an Antenna.............................................................89 14 Installation Checklist................................................................................................................93 15 Powering on an AAU................................................................................................................95 16 Appendix.....................................................................................................................................97 16.1 Assembling the OT Terminal and the Power Cable...................................................................................................98 16.2 Adding a Tool-Less Female Connector (Pressfit Type) to an AAU Power Cable on the AAU Side......................102 Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. viii AAU3940 Installation Guide 1 Changes in AAU3940 Installation Guide 1 Changes in AAU3940 Installation Guide This section describes changes in AAU3940 Installation Guide. 01 (2015-01-15) This is the first commercial release. Compared with issue Draft A (2014-10-30), no information is added to or deleted from this issue. Compared with issue Draft A (2014-10-30), this issue includes the following changes. Topic Entire document Draft A (2014-10-30) This is a draft. Change Description Some figure updates caused by the structure modification of the AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1 AAU3940 Installation Guide 2 Overview 2 Overview About This Chapter Before installing an AAU, you must be familiar with its installation options and installation clearance requirements. 2.1 Installation Scenario An AAU can be installed independently or can be installed together with an ODM04A (ODM for short) on a pole, a wall, or the top of a pole. 2.2 Installation Clearance Requirements This section describes installation clearance requirements in different scenarios. 2.3 AAU Mounting Kits This section describes mounting kits for installing AAUs on a pole, a wall, and the top of a pole. 2.4 ODM Description This section describes functions and specifications of an ODM. 2.5 Surge Protection Requirements When an AAU is installed on a pole or the top of a pole, the AAU must meet the surge protection requirements. Otherwise, surge protection measures must be taken. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 2 AAU3940 Installation Guide 2 Overview 2.1 Installation Scenario An AAU can be installed independently or can be installed together with an ODM04A (ODM for short) on a pole, a wall, or the top of a pole. Installation Scenario Description NOTE An AAU has been camouflaged and the second camouflaging is not allowed in principle. If the second camouflaging must be performed, you need to contact Huawei technical engineers for assessment. The following figure shows scenarios in which AAUs are installed independently. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 3 AAU3940 Installation Guide 2 Overview Figure 2-1 Scenario in which AAUs are installed independently a: Scenario in which three AAUs are installed on a pole b: Scenario in which two AAUs are installed on a pole c: Scenario in which one AAU is installed on a pole d: Scenario in which an AAU is installed on a wall e: Scenario in which an AAU is installed on the top of a pole
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Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 4 AAU3940 Installation Guide 2 Overview The following figure shows scenarios in which AAUs are installed together with ODMs. NOTE AAUs can also be installed together with optical distribution frames (ODFs). This document uses ODMs as examples. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 5 AAU3940 Installation Guide 2 Overview Figure 2-2 Scenarios in which AAUs are installed together with ODMs a: Scenario in which three AAUs are installed together with an ODM on a pole b: Scenario in which two AAUs are installed together with an ODM on a pole c: Scenario in which an AAU is installed together with an ODM on a pole Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 6 AAU3940 Installation Guide 2 Overview d: Scenario in which an AAU is installed together with an ODM on a wall e: Scenario in which an AAU is installed on the top of a pole and an ODM is installed on a wall
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NOTICE In all scenarios, AAUs are installed together with their bottoms facing downwards. The vertical deviation angle of a support must be less than or equal to 5 degrees, as shown in the following figure. Figure 2-3 Vertical deviation angle of an AAU
(1) AAU
(2) Support (pole, top of a pole, or wall) Requirements of Installation Scenarios The following table describes the requirements for poles, walls, and tops of poles in the preceding installation scenarios. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 7 AAU3940 Installation Guide 2 Overview Table 2-1 Requirements of installation scenarios Installation Scenario One AAU is installed on a pole. Two AAUs are installed on a pole. Requirements l The part of a pole for installing an AAU should have a diameter of 60 mm to 300 mm (2.36 in. to 11.81 in.) and the recommended wall thickness of a pole is greater than or equal to 4 mm (0.16 in.). l If the part of a pole for installing an AAU has a diameter greater than 300 mm (11.81 in.), an auxiliary pole is required for installing the AAU. l Two AAUs are installed back to back in most cases. l The recommended wall thickness of a pole is greater than or equal to 4 mm (0.16 in.). l When AAUs are installed on the same level, the part of a pole for installing the AAUs should have a diameter of 80 mm to 230 mm
(3.15 in. to 9.06 in.). When AAUs are installed on different levels, the parts of a pole for installing the AAUs should have a diameter of 60 mm to 230 mm (2.36 in. to 9.06 in.). l If the part of a pole for installing AAUs has a diameter greater than 230 mm (9.06 in.), an auxiliary pole is required for installing the AAUs. Three AAUs are installed on a pole. l The recommended wall thickness of a pole is greater than or equal to 4 mm (0.16 in.). l When AAUs are installed on the same level, the part of a pole for installing the AAUs should have a diameter of 80 mm to 230 mm
(3.15 in. to 9.06 in.). When AAUs are installed on different levels, the parts of a pole for installing the AAUs should have a diameter of 60 mm to 230 mm (2.36 in. to 9.06 in.). l If the part of a pole for installing AAUs has a diameter greater than 230 mm (9.06 in.), an auxiliary pole is required for installing the AAUs. A wall should have a load-bearing capacity of 80 kg (176.37 lb). l The recommended wall thickness of a pole is greater than or equal to 4 mm (0.16 in.). l A flange plate must be installed on the top of a pole for attaching an AAU to the pole. l The recommended thickness of a flange plate is greater than or equal to 6 mm (0.24 in.). l To achieve neat installation, it is recommended that the diameter of a pole be the same as that of a flange plate. AAUs are installed on a wall. An AAU is installed on the top of a pole. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 8 AAU3940 Installation Guide 2 Overview The method of connecting a flange plate to the top of a pole is determined by customers. The following figure shows the design specifications of ports on a flange plate for connecting an AAU. Figure 2-4 Design specifications of ports on a flange plate
(1) Flange plate
(2) Screw hole
(3) Nut 2.2 Installation Clearance Requirements This section describes installation clearance requirements in different scenarios. The following figure shows the clearance requirements for installing an AAU. NOTE The following figure shows the clearance requirements for independently installing an AAU. When an AAU is installed together with an ODM, the clearance requirements are different. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 9 AAU3940 Installation Guide 2 Overview Figure 2-5 AAU installation clearance requirements The following figure shows the clearance requirements for installing an ODM. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 10 AAU3940 Installation Guide 2 Overview Figure 2-6 ODM installation clearance requirements 2.3 AAU Mounting Kits This section describes mounting kits for installing AAUs on a pole, a wall, and the top of a pole. Mounting Kits for an AAU Installed on a Pole or Wall The same mounting kits are used for installing an AAU on a pole and installing an AAU on a wall. However, the procedure for installing an AAU on a pole is different from that for installing an AAU on a wall. The following figure shows the mounting kits for an AAU. NOTE When an AAU is installed on a pole or wall, the main bracket and attachment plate are required. l When an AAU is installed on a pole, M8x80 expansion anchor bolts are not required. l When an AAU is installed on a wall, steel belts are not required. Therefore, you need to remove the steel belts from mounting kits. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 11 AAU3940 Installation Guide 2 Overview Figure 2-7 Mounting kits for an AAU installed on a pole or wall
(1) Attachment plate
(2) M8x80 expansion anchor bolt
(3) Main mounting bracket
(4) Steel belt Mounting Kits for an AAU Installed on the Top of a Pole Mounting kits for installing an AAU on the top of a pole include a support and a landscaping cover, as shown in the following figure. Figure 2-8 Mounting kits installing for an AAU on the top of a pole
(1) Support
(2) M6x16 bolt
(3) Landscaping cover
(4) M10x30 bolt 2.4 ODM Description This section describes functions and specifications of an ODM. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 12 AAU3940 Installation Guide Function 2 Overview The ODM is an auxiliary low-power AC device for providing power distribution and fiber distribution. The ODM cover provides fiber distribution and the ODM provides power distribution. The following figure shows the structure of an ODM. Figure 2-9 ODM structure
(1) Splicing tray
(2) Fiber holder
(3) Clip
(4) Holes for output fiber optic cables
(5) Hole for the input fiber optic cable
(6) Hanger for the trunk fiber optic cable
(7) Cable holes for the output power cables
(8) Cable hole for the input power cable
(9) Screwdriver
(10) Terminal block for input power cables
(11) Terminal block for output power cables
(12) Pigtail adapter Specification The following table describes the specifications of an ODM. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 13 AAU3940 Installation Guide 2 Overview Table 2-2 ODM specifications Item Specifications Dimensions (H x W x D) 232 mm x 158 mm x 96.5 mm (9.13 in. x 6.22 in. x 3.80 in.) Upper-level circuit breaker 20 A Support power 1650 W Power supply capacity Fiber division capacity Cable specifications One AC power input and four AC power outputs (Each power output is less than or equal to 400 W.) One trunk fiber optic cable and three pairs of breakout fiber optic cables (six breakout fiber optic cables) l Cross-sectional area of an input power cable: 1.5 mm2 to 4 mm2
(0.002 in.2 to 0.006 in.2). External diameter of an input power cable: 8.3 mm to 15mm (0.33 in. to 0.59 in.) l Cross-sectional area of an output power cable: 1.5 mm2 to 2.5 mm2 (0.002 in.2 to 0.004 in.2). External diameter of an output power cable: 8.3 mm to 13.5 mm (0.33 in. to 0.53 in.) l External diameter of an input fiber optic cable: 9.8 mm to 11 mm
(0.39 in. to 0.43 in.) l External diameter of an output fiber optic cable: 7.0 mm (0.28 in.) Mounting Kits The following figure shows the mounting kits for an ODM. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 14 AAU3940 Installation Guide 2 Overview Figure 2-10 Mounting kits for an ODM
(1) Attachment plate
(2) Mounting bracket
(3) Steel belt
(4) Expansion bolt 2.5 Surge Protection Requirements When an AAU is installed on a pole or the top of a pole, the AAU must meet the surge protection requirements. Otherwise, surge protection measures must be taken. A direct lightning strike protection measure must be taken (that is, a lightning rod is installed) if AAU installation meets the following conditions:
l When the AAU is installed on a pole or the top of a pole, the distance between the top of the pole and the top of the AAU is less than 30 cm (0.98 ft). l The AAU is not installed within the protection range of the lightning rod. When a lightning rod is installed near the AAU installation position, the following conditions must be met:
l The distance between the lightning rod and the top of the AAU must be greater than 30 cm
(0.98 ft). l The lightning rod must be properly connected to the onsite ground grid. l The AAU PGND cable must be routed along the inner side of the pole and is connected to the ground bar of the onsite ground grid. l In addition to the above conditions, the lightning rod installation must meet other building surge protection requirements. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 15 AAU3940 Installation Guide 2 Overview The following figure shows AAU installation scenarios in which surge protection measures are taken. Figure 2-11 AAU installation scenarios in which surge protection measures are taken
(1) Lightning rods
(2) AAUs
(3) AAU PGND cables
(4) Ground bars of ground girds
(5) PGND cables for metal poles
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Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 16 AAU3940 Installation Guide 3 Installation Preparations 3 Installation Preparations About This Chapter This chapter lists the tools and instruments that must be obtained before the installation. It also specifies the skills that the onsite personnel must have. 3.1 Documents This section lists the documents that must be obtained before the installation. 3.2 Tools and Instruments You must prepare the following tools and instruments before the installation. 3.3 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 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 17 AAU3940 Installation Guide 3.1 Documents 3 Installation Preparations This section lists the documents that must be obtained before the installation. l Before the installation, familiarize yourself with related information in the following documents:
AAU3940 Hardware Description Safety Information l During the installation, refer to the following document:
Installation Reference 3.2 Tools and Instruments You must prepare the following tools and instruments before the installation. Heat gun Phillips screwdriver (M3 to M6) Flat-head screwdriver (M3 to M6) ESD gloves Needle-nose pliers Wire stripper Utility knife Cable cutter Adjustable wrench (size 32 mm or 1.26 in.) Torque wrench Size: 16 mm (0.63 in.) and 32 mm (1.26 in.) Combination wrench Size: 16 mm (0.63 in.) and 32 mm (1.26 in.) Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 18 AAU3940 Installation Guide 3 Installation Preparations Level Torque screwdriver Torque socket Multimeter Marker (diameter 10 mm or 0.39 in.) Measuring tape Hex key Fixed pulley Lifting sling Hydraulic pliers Fiber fusion splicer Geologic compass Hammer drill 3.3 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. The customer must pay attention to the following points before the installation:
l The customer's technical engineers must be trained by Huawei and be familiar with the installation and operation methods. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 19 AAU3940 Installation Guide 3 Installation Preparations l The number of onsite personnel depends on the engineering schedule and installation environment. Generally, four to five onsite personnel are necessary. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 20 AAU3940 Installation Guide 4 Unpacking Check 4 Unpacking Check Unpack and check the delivered equipment to ensure that all materials are included and intact. Context NOTE When transporting, moving, or installing equipment or components, l l Prevent them from colliding with doors, walls, shelves, or other objects. Avoid touching their unpainted metal surfaces with sweat-soaked or dirty gloves or bare hands. NOTICE Power on an AAU within 24 hours after unpacking it. 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 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. If... Then... The outer packing case is intact Go to Step 3. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 21 AAU3940 Installation Guide 4 Unpacking Check If... Then... The outer packing is severely damaged or soaked Find out the cause and report the situation 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 articles tally with those on the packing list Sign the Packing List with the customer. There are any goods missing, incorrectly delivered, or damaged Report the situation to the local Huawei office. CAUTION 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. Step 4 Take the recording form out of the carton containing antennas and fill in the form according to the actual situation. NOTICE Ensure that the RET SN on the antenna's name plate is consistent with that in the recording form.
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 22 AAU3940 Installation Guide 5 Installation Process 5 Installation Process This chapter describes the process of installing an AAU. The following figure shows the installation process. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 23 AAU3940 Installation Guide Figure 5-1 Installation process 5 Installation Process Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 24 AAU3940 Installation Guide 6 (Optional) Installing an ODM 6 (Optional) Installing an ODM Context Procedure This section describes the procedure and precautions for installing an ODM. The part of a pole for installing the mounting bracket of an ODM should have a diameter of 114 mm to 380 mm (4.489 in. to 14.96 in.). l Installing an ODM on a wall 1. Determine a position for installing an ODM on a wall, use a level to adjust the position to ensure that the mounting bracket will be placed horizontally, and use a marker to mark anchor points, as shown in the following figure. Figure 6-1 Determining a position for installing an ODM
(1) Level
(2) Screw hole
(3) Marker Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 25 AAU3940 Installation Guide 6 (Optional) Installing an ODM 2. Drill holes at the anchor points and install expansion bolts in the holes, as shown in the following figure. a. Use a hammer drill with a 8 bit to drill holes vertically at the marked anchor points. Ensure that the depth of each hole ranges from 50 mm to 60 mm (1.97 in. to 2.36 in.). b. Use a vacuum cleaner to clear the dust inside and around the holes, and measure the distances between holes. If any of the holes 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. c. d. Use a rubber mallet to pound the expansion bolt until it goes into the hole completely. Ensure that a 20 mm (0.79 in.) part of the expansion bolt is left outside the wall. e. Remove the M6x60 bolt, nut, spring washer, and flat washer in sequence. CAUTION Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. Figure 6-2 Drilling a hole and inserting an expansion bolt assembly
(1) M6x60 bolt
(2) Nut
(3) Spring washer
(4) Flat washer
(5) Expansion tube 3. Place the mounting bracket against the installation position on the wall, and use four M6x60 bolts to tighten the mounting bracket to 5 Nm (44.25 lbfin.), as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 26 AAU3940 Installation Guide 6 (Optional) Installing an ODM Figure 6-3 Tightening a mounting bracket to the installation position on a wall
(1) Nut
(2) Spring washer
(3) Flat washer 4. Fit the two dowels on the top of the ODM backplane into the mounting bracket, and push the ODM case until it is attached onto the mounting bracket, as shown by illustrations a and b in the following figure. 5. Use a double-headed inner hexagon tool to tighten the screw on the top of the attachment plate clockwise to 7 Nm (61.95 lbfin.), as shown by illustration c in the following figure. Figure 6-4 Installing an ODM to a mounting bracket Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 27 AAU3940 Installation Guide 6 (Optional) Installing an ODM l Installing an ODM on a pole 1. Determine a position for installing an ODM on a pole, attach a mounting bracket to the installation position on the pole, put the steel belts through the mounting bracket, and wind the steel belts round the pole for one circle, as shown by illustrations a, b, and c in the following figure. 2. Use an M6 inner hexagon wrench to tighten the bolts on the two steel belts alternately to secure the mounting bracket to 5 Nm (44.25 lbfin.), as shown by illustration d in the following figure. Figure 6-5 Securing a mounting bracket to a pole 3. Fit the two dowels on the top of the ODM backplane into the mounting bracket, and push the ODM case until it is attached onto the mounting bracket, as shown by illustrations a and b in the following figure. 4. Use a double-headed inner hexagon tool to tighten the screw on the top of the attachment plate clockwise to 7 Nm (61.95 lbfin.), as shown by illustration c in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 28 AAU3940 Installation Guide 6 (Optional) Installing an ODM Figure 6-6 Installing an ODM to a mounting bracket
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 29 AAU3940 Installation Guide 7 Preprocessing the AAU Maintenance Cavity 7 Preprocessing the AAU Maintenance Cavity Before installing an AAU, take power terminals out of its maintenance cavity and install optical modules. Procedure Step 1 Use an M6 inner hexagon torque screwdriver to loosen the screw on the maintenance cavity and open the maintenance cavity. Then take out of power terminals, as shown in the following figure. Figure 7-1 Taking out of power terminals Step 2 Prepare power cables according to the instructions in 16.2 Adding a Tool-Less Female Connector (Pressfit Type) to an AAU Power Cable on the AAU Side Step 3 Lower the puller of the optical module, insert the optical module into the CPRI port on the AAU, and raise the puller, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 30 AAU3940 Installation Guide 7 Preprocessing the AAU Maintenance Cavity Figure 7-2 Installing the optical module 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. Step 4 Use an M6 inner hexagon torque screwdriver to tighten the screw on the maintenance cavity to 7 Nm (61.95 lbfin.), as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 31 AAU3940 Installation Guide 7 Preprocessing the AAU Maintenance Cavity Figure 7-3 Closing a maintenance cavity Step 5 Install the attachment plate on the maintenance cavity of the AAU to be installed, and use an M6 inner hexagon torque screwdriver to tighten the screws to 7 Nm (61.95 lbfin.), as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 32 AAU3940 Installation Guide 7 Preprocessing the AAU Maintenance Cavity Figure 7-4 Installing an attachment plate
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 33 AAU3940 Installation Guide 8 Lifting an AAU 8 Lifting an AAU Prerequisites Context Before installing an AAU on a pole, you need to lift the AAU to the installation position on the pole. You have preprocessed the AAU maintenance cavity. For detailed operations, see 7 Preprocessing the AAU Maintenance Cavity. It is recommended that a tail-lift truck be used to lift installation personnel and equipment to the installation position. If there is no tail-lift truck, a reliable and safe scaffold can be used. NOTICE Do not work at heights when you meet any of the following situations:
l Thunder, lightning, rain, or wind greater than force 6 occurs. l Water remains on the surface of the steel tube. l There may be other danger. After the above situations are eliminated, the Huawei security director and related technical personnel must check all devices to be used before work start. Procedure Step 1 Installation person A lifts and places the bound mounting kits to the scaffold platform, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 34 AAU3940 Installation Guide Figure 8-1 Lifting mounting kits 8 Lifting an AAU Step 2 Use the lifting sling to bind the handle on the top of the AAU and use the traction sling to bind the lower part of the AAU, as shown in the following figure. Figure 8-2 Binding an AAU
(1) Handle on the top
(2) Lifting sling
(3) Traction sling Step 3 Installation person A climbs up onto the scaffold and then lifts and places the AAU on the scaffold platform, and installation person B pulls the traction sling outwards to prevent the AAU from colliding with the scaffold, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 35 AAU3940 Installation Guide Figure 8-3 Lifting an AAU 8 Lifting an AAU
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 36 AAU3940 Installation Guide 9 Installing an AAU 9 Installing an AAU About This Chapter This chapter describes the procedures for installing an AAU in different scenarios. 9.1 Installing an AAU on a Pole This section describes the procedure and precautions for installing an AAU on a pole. 9.2 Installing an AAU on the Top of a Pole This section describes the procedure and precautions for installing an AAU on the top of a pole. 9.3 Installing an AAU on a Wall This section describes the procedure and precautions for installing an AAU on a wall. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 37 AAU3940 Installation Guide 9 Installing an AAU 9.1 Installing an AAU on a Pole This section describes the procedure and precautions for installing an AAU on a pole. Prerequisites Context l You have preprocessed the AAU maintenance cavity. For detailed operations, see 7 Preprocessing the AAU Maintenance Cavity. l You have lifted the AAU and mounting kits to the installation position on the pole. For detailed operations, see 8 Lifting an AAU. NOTICE Do not work at heights when you meet any of the following situations:
l Thunder, lightning, rain, or wind greater than force 6 occurs. l Water remains on the surface of the steel tube. l There may be other danger. After the above situations are eliminated, the Huawei security director and related technical personnel must check all devices to be used before work start. Procedure Step 1 Determine a position for installing the mounting kits on a pole. Step 2 Attach the mounting kits to the installation position on the pole, wind each steel belt round the pole for one circle, and put the steel belt through the sliding block of the mounting kits, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 38 AAU3940 Installation Guide 9 Installing an AAU Figure 9-1 Putting the steel belt through the sliding block Step 3 Pull the steel belts to align the holes on the steel belts with those on the sliding blocks, as shown in the following figure. NOTE If the pin on a sliding block is located between two holes on a steel belt after the belt is securely attached to the pole, slightly loosen the steel belt so that the pin goes through a hole on the steel belt. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 39 AAU3940 Installation Guide 9 Installing an AAU Figure 9-2 Installing the main mounting bracket Step 4 Use an M10 inner hexagon wrench to tighten the bolts on the two steel belts alternately to secure the main mounting bracket to 28 Nm (247.8 lbfin.), as shown in the following figure. NOTE Tighten the bolts clockwise to slide a sliding block on a steel belt towards bolt heads and securely attach the steel belt. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 40 AAU3940 Installation Guide 9 Installing an AAU Figure 9-3 Securing a main mounting bracket Step 5 Use a cable cutter to cut off the excess of steel belts and reserve a slack of 20 mm to 30 mm
(0.79 in. to 1.18 in.), and wrap insulation tape around the ends of the belts to prevent personal injury, as shown in the following figure. Figure 9-4 Cutting off the excess of steel belts and wrapping insulation tape
(1) Insulation tape Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 41 AAU3940 Installation Guide 9 Installing an AAU Step 6 Attach the AAU to the main mounting bracket, and use an M6 inner hexagon screwdriver to tighten the screw on the main mounting bracket to 7 Nm (61.95 lbfin.), as shown in the following figure. Figure 9-5 Installing an AAU on a main mounting bracket Step 7 Optional: Install the second AAU. NOTICE Before installing the second AAU, ensure that the mounting kits for the first AAU have been securely installed. 1. 2. Put the steel belts of the mounting kits for the second AAU through the evading holes of the mounting kits for the first AAU, as shown in the following figure. Install the mounting kits for the AAU according to steps Step 3 to Step 5. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 42 AAU3940 Installation Guide 9 Installing an AAU 3. Install the AAU to the mounting kits according to Step 6. Step 8 Optional: Install the third AAU. NOTICE Before installing the third AAU, ensure that the mounting kits for the first and second AAUs have been securely installed. 1. 2. 3. Put the steel belts of the mounting kits for the third AAU through the evading holes of the mounting kits for the first and second AAUs, as shown in the following figure. Install the mounting kits for the AAU according to steps Step 3 to Step 5. Install the AAU to the mounting kits according to Step 6. NOTE In the above figure, holes in dashed red circles are evading holes. Figure 9-6 Putting the steel belts through the evading holes NOTE The following figure shows three AAUs installed on a pole. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 43 AAU3940 Installation Guide 9 Installing an AAU Figure 9-7 Three AAUs installed on a pole
(1) Lightning rod
----End 9.2 Installing an AAU on the Top of a Pole This section describes the procedure and precautions for installing an AAU on the top of a pole. Prerequisites l You have preprocessed the AAU maintenance cavity. For detailed operations, see 7 Preprocessing the AAU Maintenance Cavity. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 44 9 Installing an AAU NOTICE Do not work at heights when you meet any of the following situations:
l Thunder, lightning, rain, or wind greater than force 6 occurs. l Water remains on the surface of the steel tube. l There may be other danger. After the above situations are eliminated, the Huawei security director and related technical personnel must check all devices to be used before work start. AAU3940 Installation Guide Context Procedure Step 1 Lift the landscaping cover and remove it. Keep the landscaping cover for later installation. Step 2 Use a torque wrench to tighten three M10 screws to 28 Nm (247.8 lbfin.) so that the mounting bracket is secured to the top of a pole, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 45 AAU3940 Installation Guide 9 Installing an AAU Figure 9-8 Securing a mounting bracket Step 3 Put the AAU on the mounting bracket on the top of a pole with both hands, and tighten four M6 inner hexagon bolts to secure the AAU, a shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 46 AAU3940 Installation Guide Figure 9-9 Installing an AAU 9 Installing an AAU Step 4 Install the removed landscaping cover. NOTE It is recommended that the landscaping cover be installed after cables are connected. 1. Put the landscaping cover on the AAU, and press the elastomer on the mounting bracket when the landscaping cover reaches the top of the mounting bracket so that it can slide down. Ensure that the three support braces of the landscaping cover slide into the troughs on the bottom of the mounting bracket. 2. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 47 AAU3940 Installation Guide 9 Installing an AAU Figure 9-10 Installing a landscaping cover
(1) Elastomer
(2) Trough
(3) Support brace
----End 9.3 Installing an AAU on a Wall This section describes the procedure and precautions for installing an AAU on a wall. Prerequisites l You have preprocessed the AAU maintenance cavity. For detailed operations, see 7 Preprocessing the AAU Maintenance Cavity. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 48 AAU3940 Installation Guide Procedure 9 Installing an AAU Step 1 Remove the steel belts from mounting kits, as shown in the following figure. 1. Use a Phillips screwdriver to remove four screws from the cover plate. 2. Use an M6 inner hexagon wrench to remove the bolts from the steel belts. 3. Remove the steel belts from the mounting kits. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 49 AAU3940 Installation Guide Figure 9-11 Removing steel belts 9 Installing an AAU Step 2 Place the main bracket against the wall, use a level to verify that the main bracket is placed horizontally, and use a maker to mark anchor points, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 50 AAU3940 Installation Guide Figure 9-12 Marking anchor points 9 Installing an AAU
(1) Level
(2) Screw hole
(3) Marker Step 3 Drill holes at the anchor points, and then insert expansion anchor bolts, as shown in the following figure. 1. Use a hammer drill with a 10 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.). 2. Use a vacuum cleaner to clear the dust inside and around the holes, and measure the distances between holes. If any of the holes is beyond the acceptable range, mark a new anchor point and drill a new hole. Tighten the expansion anchor bolts slightly and place one vertically into each hole. 3. 4. Use a rubber mallet to hit the expansion bolt until the expansion tube completely enters the hole. 5. Remove the nut, spring washer, and flat washer in sequence. CAUTION Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 51 AAU3940 Installation Guide 9 Installing an AAU Figure 9-13 Drilling a hole and inserting expansion anchor bolts
(1) M8x80 bolt
(2) Nut
(3) Spring washer
(4) Flat washer
(5) Expansion tube NOTICE After dismantling an expansion anchor bolt, ensure that the top of the expansion tube is on the same level as the wall. Otherwise, the main mounting bracket cannot be installed on the wall evenly and securely. Step 4 Place the main mounting bracket against the wall, use a torque wrench to tighten four M8 bolts to 13 Nm (115.06 lbfin.) and so that the main mounting bracket is securely installed on the wall, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 52 AAU3940 Installation Guide 9 Installing an AAU Figure 9-14 Installing the main mounting bracket
(1) Nut
(2) Spring washer
(3) Flat washer Step 5 Install the attachment plate on the maintenance cavity of the AAU to be installed, and use an M6 inner hexagon torque screwdriver to tighten the screws to 7 Nm (61.95 lbfin.), as shown in the following figure. Figure 9-15 Installing an attachment plate Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 53 AAU3940 Installation Guide 9 Installing an AAU Step 6 Attach the AAU to the main mounting bracket, and tighten the bolts on the main mounting bracket, as shown in the following figure. Figure 9-16 Installing an AAU on a main mounting bracket
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 54 AAU3940 Installation Guide 10 Installing AAU Cables 10 Installing AAU Cables About This Chapter This section describes the procedure and precautions for installing AAU cables. 10.1 Cabling Requirements Cables must be laid out according to the specified cabling requirements to prevent signal interference. 10.2 Installing an AAU PGND Cable This section describes the procedure and precautions for installing an AAU PGND cable. 10.3 Installing an AAU Power Cable This section describes the process and precautions for installing an AAU power cable. 10.4 Installing an ODM Power Cable This section describes the process and precautions for installing an ODM power cable when an ODM is configured. 10.5 Installing a Trunk CPRI Fiber Optic Cable Between an ODM and a BBU This section describes the procedure for installing a trunk CPRI fiber optic cable between an ODM and a BBU when an ODM is configured. 10.6 Installing a CPRI Fiber Optic Cable Between an AAU and a BBU or Between an AAU and an ODM If no ODM is configured, a CPRI fiber optic cable is directly connected to a BBU. If an ODM is configured, a CPRI fiber optic cable is connected to the ODM. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 55 AAU3940 Installation Guide 10 Installing AAU Cables 10.1 Cabling Requirements Cables must be laid out according to the specified cabling requirements to prevent signal interference. NOTE If a cable listed below is not required, skip the cabling requirements of the cable. General Cabling Requirements Bending radius requirements l The bending radius of a 7/8'' feeder must be greater than 250 mm (9.84 in.), and the bending radius of a 5/4'' feeder must be greater than 380 mm (14.96 in.). l The bending radius of a 1/4'' jumper must be greater than 35 mm (1.38 in.). The bending radius of a super-flexible 1/2'' jumper must be greater than 50 mm (1.97 in.), and the bending radius of an ordinary 1/2'' jumper must be greater than 127 mm (5 in.). l The bending radius of a power cable or PGND cable must be at least three times its diameter. l The bending radius of a fiber optic cable is at least 20 times of its diameter, and the bending radius of a breakout cable is at least 30 mm (1.18 in.). l The bending radius of an E1/T1 cable must be at least three times its diameter. l The bending radius of a signal cable must be at least five times its diameter. Cable binding requirements l Cables of the same type must be bound together. l Different types of cables must be separately laid out and bound, with a minimum distance of 30 mm (1.18 in.) from each other. l The cables must be bound tightly and neatly. The sheaths of the cables must not be damaged. l The cable ties must face the same direction, and those at the same horizontal line must be in a straight line. l The excess of the indoor cable ties is cut off. The excess of 5 mm (0.197 in.) of the outdoor cable ties is reserved, and the cut surfaces are smooth without sharp edges. l After cables are installed, labels or nameplates must be attached to the cables at their ends, curves, and interconnection positions. Security requirements l When routing cables, avoid sharp objects, for example sharp edges on the wall. If necessary, use tubes to protect the cables. l When routing cables, keep the cables away from heat sources and use heat insulation materials to insulate the cables from the heat sources. l Reserve a proper distance (0.1 m or 3.937 in. is recommended) between equipment and cables especially at the cable curves to protect the cables and equipment. Indoor cabling requirements l Route each cable into the room through the feeder window. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 56 AAU3940 Installation Guide 10 Installing AAU Cables l Reserve drip loops for all cables outside the feeder window before routing them into the room. Ensure that the radiuses of the drip loops are greater than or equal to the minimum bending radiuses of the cables. l When routing a cable into the room, ensure that a person is assisting you in the room. l Apply waterproof treatment to the feeder window. Outdoor Cabling Requirements l After being connected to a ground clip on power cables, a ground cable must be routed downwards to prevent water from entering the equipment to which the power cables connect. l Protect outdoor cables against potential damage. For example, put the cables through tubes. l The cables to be protected include AC power cables, transmission cables, and cables laid out underground. l When routing cables through tubes on the ground below the cabinet, put a 30 mm to 50 mm (1.18 in. to 1.97 in.) length of the tubes into the base of the cabinet but do not put the tubes into the cabinet. Use waterproof tape or waterproof silicon gel to block both ends of the tubes and use sheet metal tabs to secure the tubes to the cable holes in the base. l When routing cables through tubes along a metal cable trough below the cabinet, do not put the tubes into the base of the cabinet but cover the cable trough and connect the tubes to the cable holes in the base. l Use clips to secure cables outdoors. For the method of installing a clip, see the installation guide delivered with the clip. l Arrange cables neatly along the routing direction and use clips to secure the cables. l Determine the positions where the clips are installed according to the actual situation. For example, 7/8" feeders are secured with clips at an interval of 1.5 m to 2 m (4.92 ft to 6.56 ft), CPRI fiber optic cables and power cables are secured with clips at an interval of 1 m to 1.5 m (3.28 ft to 4.92 ft). Ensure that the clips are evenly spaced and in the same direction. l When fastening cables with a clip, ensure that the cables are aligned neatly and are routed through the holes in the clip. Do not stretch the cables too tightly. NOTE There are two types of clips: 3-hole clip and 6-hole clip, which are described as follows:
l A 3-hole clip is shown by illustration a in the following figure. It is often used to fasten feeders. A 6-hole clip is shown by illustration b in the following figure. It is often used to fasten power cables and CPRI fiber optic cables. l Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 57 AAU3940 Installation Guide Figure 10-1 Exterior of the clips 10 Installing AAU Cables
(1) Cable hole for feeders
(2) Cable hole for fiber optic cables
(3) Cable hole for power cables The following figure shows the cables secured on a cable tray. Figure 10-2 Cables secured on a cable tray
(1) 3-hole clip
(2) 6-hole clip The following figure shows the cables secured on a tower. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 58 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-3 Cables secured on a tower
(1) 3-hole clip
(2) 6-hole clip Special Cabling Requirements Cabling of 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 can only be laid out under well-planned instructions. The cabling activities of fiber optic cables are allowed only when qualified personnel and communication facilities are available. l Do not circle and twist cables. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 59 AAU3940 Installation Guide 10 Installing AAU Cables l After routing a DC power cable onto the platform on a tower, route it along the shortest path to the rails surrounding the platform, and route it along the inside of the rails. l After routing a DC power cable close to the equipment on a tower, use clips to secure the power cable onto a pole or the rails surrounding the platform. Ensure that there is no excessively long distance between the equipment and the position where the power cable is secured. Cabling of PGND cables l PGND cables for a base station must be connected to the same group of ground bars. l PGND cables must be buried in the ground or routed indoors. l The external conductor 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 separately. A certain distance must be reserved between them to prevent interference from each other. l Switches or fuses 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 of E1 cables l E1 cables must not cross power cables, PGND cables, or RF cables when laid out. If transmission cables are laid out 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 lined up straight and bound neatly with cable ties. l Sufficient slack is provided for E1 cables at turns. l E1 cables must not be pressed by the door of the cabinet when routed, as shown in the following figure. Figure 10-4 E1 cables routed in the cabinet Cabling of fiber optic cables l At least three people are required for laying out fiber optic cables. The cabling activities of fiber optic cables are allowed only when qualified personnel and communication facilities are available. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 60 AAU3940 Installation Guide 10 Installing AAU Cables l The operating temperature of fiber optic cables ranges from -40C to +60C (-40F to
+140F). If the actual temperature is beyond this range, take protective measures or select another route. l Do not circle and twist cables. l Do not bind a fiber optic cable at the position where it bends. l Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the fiber optic cables away from sharp objects. l When fiber optic cables are routed, the excess of the fiber optic 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 10-5 Binding fiber optic cables l When coiling fiber optic cables, apply even strength. Do not bend the fiber optic cables with force. l Unused optical connectors must be covered with dustproof caps. l The fiber optic cables must not be pressed by the door of the cabinet when routed, as shown in the following figures. Figure 10-6 CPRI fiber optic cables routed in the cabinet (1) Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 61 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-7 CPRI fiber optic cables routed in the cabinet (2) Figure 10-8 FE/GE fiber optic cables routed in the cabinet l After routing a fiber optic cable onto the platform on a tower, route it along the shortest path to the rails surrounding the platform, and route it along the inside of the rails. l After routing a fiber optic cable close to the equipment on a tower, use clips to secure the fiber optic cable onto a pole or the rails surrounding the platform. Ensure that there is no excessively long distance between the equipment and the position where the cable is secured. l Coil the excess of the fiber optic cables near the equipment on the tower before securing the cables on the tower. 10.2 Installing an AAU PGND Cable This section describes the procedure and precautions for installing an AAU PGND cable. Context The following table lists the specifications of an AAU PGND cable. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 62 AAU3940 Installation Guide 10 Installing AAU Cables Table 10-1 Specifications of an AAU PGND cable Cable End Connecting to the AAU End Connecting to the Ground Bar Color AAU PGND cable OT terminal (M6, 16 mm2 or 0.025 in.2) OT terminal (M8, 16 mm2 or 0.025 in.2) Green and yellow Procedure Step 1 Prepare a PGND cable. 1. Cut the cables to the length suitable for the actual cable route. 2. Add OT terminals to both ends of the cables according to the instructions in Assembling the OT Terminal and the Power Cable. Step 2 Install the PGND cable. 1. Connect one end of the PGND cable with an M6 OT terminal to the ground bar of the mounting kits for the AAU (shown by bolt to 4.8 Nm (42.48 lbfin.).
), and use a torque wrench to tighten the ground Figure 10-9, Figure 10-10, and Figure 10-11 show the methods of installing PGND cables when an AAU is installed on a pole, when an AAU is installed on a wall, and when an AAU is installed on the top of a pole, respectively. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 63 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-9 Installing a PGND cable when an AAU is installed on a pole Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 64 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-10 Installing a PGND cable when an AAU is installed on a wall Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 65 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-11 Installing a PGND cable when an AAU is installed on the top of a pole NOTE When installing a PGND cable, tightly press the OT terminal in the correct direction, as shown in the following figure. Figure 10-12 Installing an OT terminal correctly 2. Connect the other end of the PGND cable with an M8 OT terminal to the external ground bar. Step 3 Optional: When two or three AAUs are installed on a pole, equipotential cable(s) are required. The following figure shows the method of installing equipotential cables between AAUs. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 66 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-13 Installing equipotential cables when multiple AAUs are installed on a pole Step 4 Lay out the cables according to the instructions in Cabling Requirements, and use cable ties to bind them. Step 5 Label the installed cables according to the instructions in Attaching a Sign Plate Label.
----End 10.3 Installing an AAU Power Cable This section describes the process and precautions for installing an AAU power cable. Prerequisites Context The AAU maintenance cavity has been opened. The following table describes AAU power cables used in different scenarios. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 67 AAU3940 Installation Guide 10 Installing AAU Cables The Other End Connector Installation Position Power equipment Depending on the power equipment Cord end terminal L, N, and PE terminals near the OUTPUT silkscreen on the ODM Table 10-2 AAU power cables Install ation Positi on POWE R-IN port on an AAU POWE R-IN port on an AAU Scenari o One End Connector No ODM is configur ed. Tool-less female connector
(pressfit type) An ODM is configur ed. Tool-less female connector
(pressfit type) CAUTION Procedure AAU power cables must be routed and protected according to the local laws and regulations, industry standards, and operators' standards. CAUTION When installing an AAU power cable for a running base station, connect the cable to the AAU before connecting it to the power system. An incorrect sequence or reverse connection of the power cable will cause damage to the AAU or injuries to the human body. l Protecting an AAU power cable using a tube 1. Cut the cable to the length suitable for the actual cable route. 2. Before adding connectors to the cable, put the cable through a PVC corrugated pipe or metal tube. The length of the PVC corrugated pipe or metal tube depends on the length of the cable. Waterproof the PVC corrugated pipe or metal tube, and ground both ends of the metal tube. l Preparing an AAU power cable 1. Add a tool-less female connector (pressfit type) to the AAU's AC power cable. For details, see 16.2 Adding a Tool-Less Female Connector (Pressfit Type) to an AAU Power Cable on the AAU Side. 2. Add the corresponding connector to the end of the AAU power cable connected to power equipment according to the type of the port on the power equipment. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 68 AAU3940 Installation Guide 10 Installing AAU Cables If no ODM is configured, add the corresponding connector to the power cable according to the type of the port on the power equipment. If an ODM is configured, add cord end terminals to the end of the power cable connected to the ODM according to the instructions in Assembling the Cord End Terminal and the Power Cable. l Connecting an AAU power cable to an AAU 1. Route an AAU power cable into the maintenance cavity through the rear of the maintenance cavity. 2. Connect one end of the AAU power cable with a tool-less female connector (pressfit type) to the power port on the AAU, as shown in the following figure. Figure 10-14 Connecting an AAU power cable to an AAU 3. Use a clip to secure the power cable, as shown in the following figure. a. Use an M4 screwdriver to loosen two screws in sequence to open the power cable clip. Put the power cable through the clip and waterproof trough, and close the clip. b. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 69 AAU3940 Installation Guide 10 Installing AAU Cables c. Use an M4 torque screwdriver to tighten the screws indicated by a and b in the following figure to 1.4 Nm (12.39 lbfin.) in sequence. Figure 10-15 Securing a power cable l Connecting an AAU power cable to power equipment If... Then... No ODM is configured Connect the other end of the AAU power cable to the corresponding port on external power equipment. An ODM is configured Perform the following operations. 1. Use a screwdriver to pierce silica gel in the cable holes near the OUTPUT silkscreen on the ODM, as shown by illustration a in the following figure. Do not pierce silica Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 70 AAU3940 Installation Guide 10 Installing AAU Cables gel in the cable holes through which no cables are routed because silica gel is required to provide the waterproof function. 2. Use insulation tape to wrap cord end terminals of the power cable to prevent sharp edges of the cord end terminal from damaging silica gel. 3. Apply petroleum jelly to the power cable, and then route the power cable through a cable hole. 4. Use the screwdriver delivered with the ODM to loosen screws on the terminals to which the power cable is to be connected, and connect the terminals on the power cable to the corresponding terminals, as shown by illustrations c and d in the following figure. Tighten the screws on the terminals of the power cable, as shown by illustration e in the following figure. Securely bind the power cable to the binding bracket, as shown by illustration f in the following figure. 5. 6. Figure 10-16 Connecting an AAU power cable to an ODM
(1) Screwdriver delivered with the ODM
(2) Petroleum jelly
(3) Insulation tape Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 71 AAU3940 Installation Guide 10 Installing AAU Cables l Lay out the cables according to the instructions in Cabling Requirements, and use cable ties to bind them. l Label the installed cables according to the instructions in Attaching a Cable-Tying Label.
----End 10.4 Installing an ODM Power Cable This section describes the process and precautions for installing an ODM power cable when an ODM is configured. Context The following table describes the ODM power cable connections. Table 10-3 ODM power cable connections Cable One End The Other End Connector Cord end terminal Installation Position L, N, and PE terminals near the INPUT silkscreen on the ODM Connector Installation Position External power equipment Depending on the power equipment ODM power cable Procedure Step 1 Prepare an ODM power cable. l Add a cord end terminal to the end of the power cable connected to the ODM side according to the instructions in Assembling the Cord End Terminal and the Power Cable. l Add a connector to the other end of the ODM power cable connected to power equipment according to the type of the port on the power equipment. Step 2 Loosen the M4 captive screw from the ODM case and open the ODM case. Step 3 Use a screwdriver to pierce silica gel in the cable holes near the INPUT silkscreen on the ODM. Step 4 Use insulation tape to wrap cord end terminals of the power cable to prevent sharp edges of the cord end terminal from damaging silica gel. Step 5 Apply petroleum jelly to the power cable, and then route the power cable through a cable hole. Step 6 Connect one end of the power cable to the L, N, and PE terminals near the INPUT silkscreen, and use a torque screwdriver to tighten the screws to 0.8 Nm (7.08 lbfin.), as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 72 AAU3940 Installation Guide 10 Installing AAU Cables Step 7 Securely bind the power cable to the binding bracket, as shown in the following figure. Figure 10-17 Installing an ODM power cable Step 8 Connect the other end of the ODM power cable to the external power equipment. Step 9 Lay out the cables according to the instructions in Cabling Requirements, and use cable ties to bind them. Step 10 Label the installed cables according to the instructions in Attaching a Cable-Tying Label.
----End 10.5 Installing a Trunk CPRI Fiber Optic Cable Between an ODM and a BBU This section describes the procedure for installing a trunk CPRI fiber optic cable between an ODM and a BBU when an ODM is configured. Prerequisites Context A fiber fusion splicer is available. A CPRI fiber optic cable to be installed is shown by illustration 3 in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 73 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-18 Installing CPRI fiber optic cables
(1) CPRI fiber optic cable between an AAU and a BBU
(2) CPRI fiber optic cable between an AAU and an ODM
(3) CPRI fiber optic cable between an ODM and a BBU NOTE l The single-mode optical module is labeled as SM and the multimode optical module is labeled as MM. l The puller of a single-mode optical module is blue and the puller of a multimode optical module is black or gray. l The following figure shows the label on an optical module. Figure 10-19 Label on an optical module
(1) Maximum rate
(2) Wavelength
(3) Transmission mode 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. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 74 AAU3940 Installation Guide Procedure 10 Installing AAU Cables l Stripping a trunk fiber optic cable and pigtails 1. Use a screwdriver to pierce silica gel in the cable hole on the ODM for the trunk fiber optic cable, as shown by illustration a in the following figure. 2. Route a trunk fiber optic cable through the cable hole, as shown by illustration b in the following figure. Figure 10-20 Routing a trunk fiber optic cable through a cable hole
(1) Screwdriver
(2) Trunk fiber optic cable 3. Strip a specified length of sheath off the trunk fiber optic cable, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 75 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-21 Stripping a specified length of sheath off a trunk fiber optic cable
(1) Strength member
(2) Core wire
(3) Bare fiber Strip a specified length of sheath off the pigtail, as shown in the following figure. 4. Figure 10-22 Stripping a specified length of sheath off a pigtail
(1) Sheath
(2) Core wire
(3) Bare fiber l Installing a trunk fiber optic cable 1. Route the strength member through the hanger, bend the strength member, and tighten the screw on the hanger to 1.2 Nm (10.62 lbfin.), as shown by illustration a in the following figure. 2. Use a finger to press the clip until it snaps into place, as shown by illustration b in the following figure. 3. Route the core wire of the trunk fiber optic cable through the cable hole in the splicing tray, and use a cable tie to fasten the core wire, as shown by illustration c in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 76 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-23 Installing a trunk fiber optic cable l Installing a pigtail 1. Attach labels delivered with the splicing tray in the ODM to both ends of the pigtails to be installed. NOTE The following figure shows the first group of labeled pigtails. Figure 10-24 First group of labeled pigtails Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 77 AAU3940 Installation Guide 10 Installing AAU Cables 2. Insert the end of the pigtails with FC connectors to the adapter delivered with the ODM, coil the fiber optic cable clockwise, and route the fiber optic cable through the cable hole in the splicing tray, as shown in the following figure. NOTE This section uses FC connectors as examples. SC or LC connectors can be added to pigtails. Figure 10-25 Connecting pigtails and coiling the fiber optic cable l Splicing fiber and coiling the fiber optic cable Put the heat shrink tubing onto the bare fiber at one end of the trunk fiber optic cable. 1. 2. Use cloth dipped in detergent to clean the ends of the trunk fiber optic cable and pigtails, and ensure that the spliced area is cleaned. 3. Use a fiber fusion splicer to splice the trunk fiber optic cable and pigtails. 4. Move the heat shrink tubing to the fiber splice point so that the tubing shrinks, and install a protective cover to the trough to protect the fiber splice point. 5. Coil the trunk fiber optic cable counterclockwise and the pigtails clockwise in the splicing tray, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 78 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-26 Coiling the spliced fiber optic cable
(1) Trunk fiber optic cable
(2) Heat shrink tubing
(3) Pigtail NOTICE To open the ODM case for maintenance, a minimum of 40 mm (1.57 in.) fiber optic cable is reserved outside the ODM case, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 79 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-27 Reserving slack of a CPRI fiber optic cable a: Scenario in which a pole is used
(routing a cable along the inner side of the pole) b: Scenario in which a pole is used
(routing a cable along the outer side of the pole) c: Scenario in which a wall is used l Lay out the cables according to the instructions in Cabling Requirements, and use cable ties to bind them. l Label the installed cables according to the instructions in Attaching an L-Shaped Label.
----End 10.6 Installing a CPRI Fiber Optic Cable Between an AAU and a BBU or Between an AAU and an ODM If no ODM is configured, a CPRI fiber optic cable is directly connected to a BBU. If an ODM is configured, a CPRI fiber optic cable is connected to the ODM. Context A CPRI fiber optic cable to be installed is shown by illustration 1 or 2 in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 80 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-28 Installing CPRI fiber optic cables
(1) CPRI fiber optic cable between an AAU and a BBU
(2) CPRI fiber optic cable between an AAU and an ODM
(3) CPRI fiber optic cable between an ODM and a BBU NOTICE The optical modules to be installed must match the rates of their corresponding CPRI ports. NOTE l The single-mode optical module is labeled as SM and the multimode optical module is labeled as MM. l The puller of a single-mode optical module is blue and the puller of a multimode optical module is black or gray. l The following figure shows the label on an optical module. Figure 10-29 Label on an optical module
(1) Maximum rate
(2) Wavelength
(3) Transmission mode Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 81 AAU3940 Installation Guide 10 Installing AAU Cables 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. Procedure l Connecting a CPRI fiber optic cable to an AAU 1. Route a CPRI fiber optic cable into the maintenance cavity through the rear of the maintenance cavity. Insert the optical connector into the optical module, as shown in the following figure. 2. Figure 10-30 Connecting a CPRI fiber optic cable to an AAU (a) 3. Press the fiber concentrator into the waterproof trough, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 82 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-31 Connecting a CPRI fiber optic cable to an AAU (b)
(1) Fiber concentrator l Installing a CPRI fiber optic cable between a BBU and an ODM If... Then... The CPRI fiber optic cable is to be connected the BBU Insert the other end of the fiber optic cable into the optical module on the BBU side. The CPRI fiber optic cable is to be connected to the ODM Perform the following operations. 1. Use a screwdriver to pierce silica gel in the cable hole on the ODM for the output fiber optic cable. 2. Route the other end of the fiber optic cable with an FC connector through the cable hole, coil the fiber optic cable counterclockwise, and connect the fiber optic cable to Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 83 AAU3940 Installation Guide 10 Installing AAU Cables the corresponding port on the fiber adapter, as shown by illustration a in the following figure. 3. Use a finger to press the clip until it snaps into place, as shown by illustration b in the following figure. Figure 10-32 Connecting a CPRI fiber optic cable to an ODM NOTICE To open the ODM case for maintenance, a minimum of 40 mm (1.57 in.) fiber optic cable is reserved outside the ODM case, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 84 AAU3940 Installation Guide 10 Installing AAU Cables Figure 10-33 Reserving slack of a CPRI fiber optic cable a: Scenario in which a pole is used
(routing a cable along the inner side of the pole) b: Scenario in which a pole is used
(routing a cable along the outer side of the pole) c: Scenario in which a wall is used l Lay out the cables according to the instructions in Cabling Requirements, and use cable ties to bind them. l Label the installed cables according to the instructions in Attaching an L-Shaped Label.
----End Follow-up Procedure After all cables for the ODM are installed, close the ODM case and tighten the M4 screw on the cover. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 85 AAU3940 Installation Guide 11 Closing a Maintenance Cavity 11 Closing a Maintenance Cavity After all installation procedures are complete, you need to close the AAU maintenance cavity. Procedure Step 1 Use waterproof blocks to seal vacant waterproof troughs in the maintenance cavity. Step 2 Use an M6 inner hexagon torque screwdriver to tighten the screw on the maintenance cavity, as shown in the following figure. Figure 11-1 Closing a maintenance cavity
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 86 AAU3940 Installation Guide 12 (Optional) Installing a Cord Cover for an ODM 12 (Optional) Installing a Cord Cover for an ODM This section describes a procedure for installing a cord cover for an ODM after all cables are installed. Prerequisites Procedure l An ODM has been installed. l All cables for the ODM have been installed. Step 1 Optional: When an ODM is installed on a wall or ODM cables are routed along the outer side of a pole, remove the part from the bottom of a cord cover, as shown in the following figure. If cables are routed along the inner side of a pole, skip this step. Figure 12-1 Removing a part Step 2 Lift the cord cover so that the two round dowels on the top of the cord cover are inserted into the holes on the bottom of the ODM, and push the cord cover upwards, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 87 AAU3940 Installation Guide 12 (Optional) Installing a Cord Cover for an ODM Figure 12-2 Installing a cord cover
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 88 AAU3940 Installation Guide 13 Adjusting the Horizontal Azimuth of an Antenna 13 Adjusting the Horizontal Azimuth of an Antenna This section describes the procedure for adjusting the horizontal azimuth of an antenna based on coverage requirements after all cables are installed. Context The normal line of an antenna is located on the front of the antenna, as shown in the following figure. Before adjusting the horizontal azimuth of an antenna, determine the direction towards which the antenna faces according to the normal line. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 89 AAU3940 Installation Guide 13 Adjusting the Horizontal Azimuth of an Antenna Figure 13-1 Normal line of an antenna
(1) Normal line of an antenna Procedure l Adjusting the horizontal azimuth of an antenna installed on a pole or wall 1. Loosen the screws on the angle adjusting component, and rotate the angle adjusting component based on the coverage requirements, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 90 AAU3940 Installation Guide 13 Adjusting the Horizontal Azimuth of an Antenna Figure 13-2 Adjusting the horizontal azimuth of an antenna (1)
(1) Normal line of an antenna
(2) Geologic compass Tighten the screws on the angle adjusting component to 6 Nm (53.1 lbfin.). l Adjusting the horizontal azimuth of an antenna installed on the top of a pole 2. 1. 2. Lift the landscaping cover until it is stuck above the elastomer. Loosen the screws on the mounting bracket, and rotate the mounting bracket based on the coverage requirements, as shown in the following figure. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 91 AAU3940 Installation Guide 13 Adjusting the Horizontal Azimuth of an Antenna Figure 13-3 Adjusting the horizontal azimuth of an antenna (2)
(1) Normal line of an antenna
(2) Geologic compass 3. Use a torque wrench to tighten the screws on the mounting bracket to 28 Nm (247.8 lbfin.).
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 92 AAU3940 Installation Guide 14 Installation Checklist 14 Installation Checklist This section describes the checklist for AAU hardware installation. The following table describes the checklist for AAU hardware installation. Table 14-1 Hardware installation checklist No. Item 1 2 3 4 5 6 7 8 9 10 11 12 The installation position of each device strictly complies with the engineering design and meets clearance requirements. Sufficient space is reserved for equipment maintenance. An AAU is securely attached to an attachment plate, and the attachment plate is securely attached to mounting kits. A fiber concentrator is pressed into the waterproof trough in the maintenance cavity. The screw on the cover plate for the maintenance cavity at the bottom of the AAU is tightened to the torque recommended in this document. Waterproof blocks are securely installed in vacant cable troughs of the maintenance cavity, and the cover plate for the cabling cavity is securely installed. There are no connectors or joints on each power cable or PGND cable. The terminals at both ends of each power cable or PGND cable are securely 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. The building surge protection ground and the antenna surge protection ground are separately performed. The connectors of each signal cable are intact and securely connected. Mounting kits are securely installed. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 93 AAU3940 Installation Guide No. 13 14 Installation Checklist Item Labels are correct, legible, and complete at both ends of each cable, such as feeders and jumpers. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 94 AAU3940 Installation Guide 15 Powering on an AAU 15 Powering on an AAU This section describes the procedure and precautions for powering on an AAU. Context DANGER l Before powering on a base station, check that the positive and negative wires of all power cables are correctly connected. Any incorrect power cable connection may cause damage to equipment or unexpected injuries of human body. l Exercise caution when performing a power-on check, which involves high voltage operations. Direct contact with the input voltage or indirect contact with the input voltage using a damp object may be fatal. NOTICE l After unpacking the RU, you must power on it within 24 hours. If you power off the RU for maintenance, you must restore power to the RU within 24 hours. l Keep a minimum of 7.35 m (24.11 ft) away from the front of the AAU after the RU is powered on and the AAU starts working. Process The following figure shows the process of powering on an AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 95 AAU3940 Installation Guide 15 Powering on an AAU Figure 15-1 Process of powering on an AAU NOTE l The normal input voltage of an AAU is 220 V AC and should range from 200 V AC to 240 V AC. l When an AAU is working properly, the RUN indicator is blinking (on for 1s and off for 1s), and the ALM indicator is steady off. For details about indicators, see AAU3940 Hardware Description. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 96 AAU3940 Installation Guide 16 Appendix 16 Appendix About This Chapter This chapter describes auxiliary operations during an AAU installation process. 16.1 Assembling the OT Terminal and the Power Cable There are two types of OT terminal: one-hole OT terminal and two-hole OT terminal. This section describes the procedure for adding an OT terminal to a power cable by taking a one-hole OT terminal as an example. 16.2 Adding a Tool-Less Female Connector (Pressfit Type) to an AAU Power Cable on the AAU Side This section describes the procedure for adding a tool-less female connector (pressfit type) to an AAU power cable on the AAU side. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 97 AAU3940 Installation Guide 16 Appendix 16.1 Assembling the OT Terminal and the Power Cable There are two types of OT terminal: one-hole OT terminal and two-hole OT terminal. This section describes the procedure for adding an OT terminal to a power cable by taking a one-hole OT terminal as an example. Context Figure 16-1 shows a one-hole OT terminal and materials related to a power cable. Figure 16-1 one-hole OT terminal and materials related to a power cable A heat shrink tubing B. one-hole OT terminal with a bare crimping terminal C. Insulation layer of a power cable D. Conductor of a power cable Figure 16-2 shows a two-hole OT terminal and materials related to a power cable. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 98 AAU3940 Installation Guide 16 Appendix Figure 16-2 two-hole OT terminal and materials related to a power cable A heat shrink tubing B. two-hole OT terminal with a bare crimping terminal C. Insulation layer of a power cable D. Conductor of a power cable Procedure Step 1 Based on the cross-sectional area of the cable conductor, strip a part of the insulation layer. The L1-long conductor is exposed, as shown in Figure 16-3. The recommended values of L1 are listed in Table 16-1. Figure 16-3 Stripping a power cable (OT terminal) Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 99 AAU3940 Installation Guide 16 Appendix NOTICE l When you strip a power cable, do not damage the conductor of the cable. l If the bare crimping terminal is not provided by Huawei, the value of L1 is 1 mm to 2 mm greater than the value of L. l Add OT terminals to the power cable immediately after stripping a length of insulation jacket off a power cable. Otherwise, the bare wires may distract from the center of the cable, which affects the installation of OT terminals. l If the bare wires distract and OT terminals cannot be installed, cut off the bare wires, strip another length of insulation jacket off the cable, and add OT terminals to the cable. Table 16-1 Mapping between the cross-sectional area of the conductor and the value of L1 Cross-Sectional Area of Conductor Value of L1 Cross-Sectional Area of Conductor Value of L1 7 mm 7 mm 7 mm 8 mm 9 mm 10 mm2 16 mm2 25 mm2 35 mm2 50 mm2 11 mm 13 mm 14 mm 16 mm 16 mm 1 mm2 1.5 mm2 2.5 mm2 4 mm2 6 mm2 NOTE If you are proficient in assembling OT terminals and power cables, you can obtain the value of L1 by comparing the part to be crimped with the power cable. Step 2 Put the heat-shrinkable (A) tube onto the bare crimping terminal, as shown in Figure 16-4. Figure 16-4 Putting the heat shrink tubing onto the bare crimping terminal Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 100 AAU3940 Installation Guide 16 Appendix Step 3 Put the OT terminal onto the exposed conductor, and ensure that the OT terminal is in good contact with the insulation layer of the power cable, as shown in Figure 16-4. NOTICE After the conductor is fed into the OT terminal, the protruding part of the conductor, or L2 in Figure 16-4, must not be longer than 2 mm. Step 4 Crimp the joint parts of the bare crimping terminal and the conductor, as shown in Figure 16-5. NOTE The shapes of crimped parts may vary with the crimping dies. Figure 16-5 Crimping the joint parts of the bare crimping terminal and the conductor Step 5 Push the heat shrink tubing (A) towards the connector until the tube covers the crimped part, and then heat the tube by using a heat gun, as shown in Figure 16-6. Figure 16-6 Heating the heat shrink tubing Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 101 AAU3940 Installation Guide 16 Appendix NOTICE When you heat the heat shrink tubing, do not heat it with too much time.
----End 16.2 Adding a Tool-Less Female Connector (Pressfit Type) to an AAU Power Cable on the AAU Side This section describes the procedure for adding a tool-less female connector (pressfit type) to an AAU power cable on the AAU side. Context The following figure shows the cable diagram on the label for an AAU power cable. Figure 16-7 Cable diagram on the label for an AAU power cable Procedure Step 1 Determine the length of the power cable for different operations based on the cable diagram on the label for a power cable, as shown in the following figure. Figure 16-8 Determining the length of a power cable Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 102 AAU3940 Installation Guide 16 Appendix Step 2 Strip a specified length of sheath off the power cable, as shown in the following figure. Figure 16-9 Stripping a specified length of sheath Step 3 Strip the sheath off each core wire, as shown in the following figure. Figure 16-10 Stripping the sheath off each wire Step 4 Add a tool-less female connector (pressfit type) to three core wires, as shown in the following Slide the sliding block on the connector outwards along the direction shown by the arrow. figure. 1. 2. Use an M3 Phillips torque screwdriver to loosen the two screws. 3. Use the M3 Phillips torque screwdriver to loosen the one screw on the other side. 4. Connect the brown core wire to the L port, the blue core wire to the N port, and the green and yellow core wire to the PE port. Then, use the M3 Phillips torque screwdriver to tighten the screws to 0.5 Nm (4.425 lbfin.), as shown in the following figure. Slide the sliding block on the connector inwards along the direction shown by the arrow. 5. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 103 AAU3940 Installation Guide 16 Appendix Figure 16-11 Adding a tool-less female connector (pressfit type) to core wires
----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 104
1 2 | UserManual safety | Users Manual | 196.23 KiB |
Compliance and Safety Manual AAU3940 Issue Date 01 2015-12-15 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 (01) 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 1.1.1 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. 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. To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. Issue (01) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-1 1 Safety 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 Ground The device (or system) must be installed in an access-controlled location. Tighten the thumbscrews by using a tool after initial installation and subsequent access to the panel. 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 16mm2. The device must be fixed securely on the floor or other reliable objects, such as the walls and the mounting racks before operation. When installing the unit, always make the ground connection first and disconnect it last 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. This device relies on the buildings installation for short-circuit (overcurrent) protection. 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). For this device, a readily accessible disconnect device shall be incorporated external to the equipment To minimize the risk of fire, use only No. 26 AWG or larger telecommunication line cord. Human Safety 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. 1-2 Huawei Proprietary and Confidential Issue (01) Copyright Huawei Technologies Co., Ltd. Operator 1 Safety 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. Reinforced insulation or double insulation must be provided to isolate DC source from AC mains supply. 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. Ensure that the instructions provided in this document are followed completely. The document also provides guidelines in selecting the measuring and testing device. 1.2 Equipment Safety 1.2.1 Electricity Safety 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 If the "high electrical leakage" tag is present on the power terminal of the device, you must ground the device before powering it on. Issue (01) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-3 1 Safety Fuse If a fuse is to be replaced, the new fuse must be of the same type and specifications. 1.3 Electromagnetic Field Exposure Introduction 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). 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. 1-4 Huawei Proprietary and Confidential Issue (01) Copyright Huawei Technologies Co., Ltd. Each exclusion zone should be defined by a physical barrier and by a recognizable sign warning the public or O&M personnel. 1 Safety FCC Statement;
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct The interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation. Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the users authority to operate this equipment. FCC RF Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 9.46 meters between the radiator and your body. IC Statement This device complies with Industry Canadas license-exempt RSSs. Operation is subject to the following two conditions:
This device may not cause interference; and This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR dIndustrie Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes:
lappareil ne doit pas produire de brouillage;
Issue (01) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1-5 1 Safety lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. This radio transmitter has been approved by Industry Canada to operate with the antenna types with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Le prsent metteur radio a t approuv par Industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour l'exploitation de l'metteur. Radiation Exposure Statement This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 9.46m between the radiator & your body. Dclaration d'exposition aux radiations Cet quipement est conforme Canada limites d'exposition aux radiations dans un environnement non contrl. Cet quipement doit tre install et utilis distance minimum de 9.46m entre le radiateur et votre corps. 1-6 Huawei Proprietary and Confidential Issue (01) Copyright Huawei Technologies Co., Ltd.
frequency | equipment class | purpose | ||
---|---|---|---|---|
1 | 2016-12-02 | 2120 ~ 2145 | PCB - PCS Licensed Transmitter | Class II permissive change or modification of presently authorized equipment |
2 | 2016-03-24 | 2120 ~ 2145 | PCB - PCS Licensed Transmitter | Original Equipment |
app s | Applicant Information | |||||
---|---|---|---|---|---|---|
1 2 | Effective |
2016-12-02
|
||||
1 2 |
2016-03-24
|
|||||
1 2 | Applicant's complete, legal business name |
Huawei Technologies Co.,Ltd
|
||||
1 2 | FCC Registration Number (FRN) |
0007419963
|
||||
1 2 | Physical Address |
Administration Building, Headquarters of Huawei
|
||||
1 2 |
Shenzhen, N/A
|
|||||
1 2 |
China
|
|||||
app s | TCB Information | |||||
1 2 | TCB Application Email Address |
T******@cetecom.com
|
||||
1 2 |
O******@cetecom.com
|
|||||
1 2 | TCB Scope |
B1: Commercial mobile radio services equipment in the following 47 CFR Parts 20, 22 (cellular), 24,25 (below 3 GHz) & 27
|
||||
app s | FCC ID | |||||
1 2 | Grantee Code |
QIS
|
||||
1 2 | Equipment Product Code |
AAU3940
|
||||
app s | Person at the applicant's address to receive grant or for contact | |||||
1 2 | Name |
Z******** X********
|
||||
1 2 | Telephone Number |
+86-7********
|
||||
1 2 | Fax Number |
+86-7********
|
||||
1 2 |
z******@huawei.com
|
|||||
app s | Technical Contact | |||||
n/a | ||||||
app s | Non Technical Contact | |||||
n/a | ||||||
app s | Confidentiality (long or short term) | |||||
1 2 | Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | Yes | ||||
1 2 | Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
if no date is supplied, the release date will be set to 45 calendar days past the date of grant. | ||||||
app s | Cognitive Radio & Software Defined Radio, Class, etc | |||||
1 2 | Is this application for software defined/cognitive radio authorization? | No | ||||
1 2 | Equipment Class | PCB - PCS Licensed Transmitter | ||||
1 2 | Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant) | Active Antenna Unit | ||||
1 2 | Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application? | No | ||||
1 2 | Modular Equipment Type | Does not apply | ||||
1 2 | Purpose / Application is for | Class II permissive change or modification of presently authorized equipment | ||||
1 2 | Original Equipment | |||||
1 2 | Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization? | No | ||||
1 2 | Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization? | No | ||||
1 2 | Grant Comments | Power output listed is conducted per channel and per port. This device supports LTE bandwidths of: 5MHz, 10MHz, 15 MHz and 20 MHz under Part 24 and 27. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures. RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC Bureau(s), including antenna co-location requirements of §1.1307(b)(3). | ||||
1 2 | Is there an equipment authorization waiver associated with this application? | No | ||||
1 2 | If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded? | No | ||||
app s | Test Firm Name and Contact Information | |||||
1 2 | Firm Name |
Huawei Technologies Co., LTD
|
||||
1 2 | Name |
Z******** F********
|
||||
1 2 | Telephone Number |
86-75********
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1 2 | Fax Number |
86-75********
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1 2 |
z******@huawei.com
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Equipment Specifications | |||||||||||||||||||||||||||||||||||||||||
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Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
1 | 1 | 24E | 1932.46 | 1987.64 | 41.02 | 0.001 ppm | 4M14F9W | ||||||||||||||||||||||||||||||||||
1 | 2 | 24E | 1940 | 1980 | 36.39 | 0.001 ppm | 18M0D9W | ||||||||||||||||||||||||||||||||||
1 | 3 | 27 | 2112.5 | 2152.5 | 38.82 | 0.001 ppm | 8M99D9W | ||||||||||||||||||||||||||||||||||
1 | 4 | 27 | 2120 | 2145 | 36.67 | 0.001 ppm | 18M0D9W | ||||||||||||||||||||||||||||||||||
1 | 5 | 27 | 2112.6 | 2152.4 | 36.9 | 0.001 ppm | 4M16F9W | ||||||||||||||||||||||||||||||||||
Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
2 | 1 | 24E | 1932.46 | 1987.64 | 41.02 | 0.001 ppm | 4M14F9W | ||||||||||||||||||||||||||||||||||
2 | 2 | 24E | 1940 | 1980 | 36.39 | 0.001 ppm | 18M0D9W | ||||||||||||||||||||||||||||||||||
2 | 3 | 27 | 2112.5 | 2152.5 | 38.82 | 0.001 ppm | 8M99D9W | ||||||||||||||||||||||||||||||||||
2 | 4 | 27 | 2120 | 2145 | 37.67 | 0.001 ppm | 18M0D9W |
some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details
This product uses the FCC Data API but is not endorsed or certified by the FCC