FCC ID: Q78-R8978S2600L LTE Remote Radio Unit

ZXSDR R8978 TDD 8 Path Remote Radio Unit User Manual Version: V5.10 ZTE CORPORATION No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Tel: +86-755-26771900 Fax: +86-755-26770801 URL: http://support.zte.com.cn E-mail: 800@zte.com.cn LEGAL INFORMATION Copyright 2017 ZTE CORPORATION. The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations. All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE CORPORATION or of their respective owners. This document is provided as is, and all express, implied, or statutory warranties, representations or conditions are disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on the information contained herein. ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subject matter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter herein. ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice. Users may visit the ZTE technical support website http://support.zte.com.cn to inquire for related information. The ultimate right to interpret this product resides in ZTE CORPORATION. Revision History Revision Version Revision Date Revision Reason R1.2 R1.1 R1.0 20160817 Added S2600L 2014-10-30 2014-08-06 Added S2600M First edition Serial Number: SJ-20141113151137-001 Publishing Date: 2016-08-17 (R1.2) SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Contents About This Manual ......................................................................................... I Chapter 1 FCC Related Statements .......................................................... 1-1 Chapter 2 Product Overview ..................................................................... 2-1 2.1 Product Positioning ............................................................................................ 2-1 2.2 Product Features................................................................................................ 2-2 2.3 External View..................................................................................................... 2-2 2.4 Product Specifications ........................................................................................ 2-3 2.4.1 ZXSDR R8978 S2300............................................................................... 2-3 2.4.2 ZXSDR R8978 S2600M............................................................................ 2-4 2.4.3 ZXSDR R8978 S2600L............................................................................. 2-4 2.5 External Interfaces ............................................................................................. 2-5 2.6 Installation Modes .............................................................................................. 2-6 2.7 Typical Networking Applications .......................................................................... 2-6 Chapter 3 Product Composition ............................................................... 3-1 3.1 System Structure................................................................................................ 3-1 3.2 Composition....................................................................................................... 3-2 3.3 LED Indicators ................................................................................................... 3-3 3.4 Physical Interfaces and Cables ........................................................................... 3-5 3.4.1 Protective Grounding Cable ...................................................................... 3-5 3.4.2 DC Power Input Cable .............................................................................. 3-6 3.4.3 LMT/TST Interface Cable.......................................................................... 3-9 3.4.4 Optical Fiber .......................................................................................... 3-10 3.4.5 Antenna Feeder Interface Cable...............................................................3-11 3.4.6 CAL/AISG Interface Cable ...................................................................... 3-13 3.4.7 EAM/RGPS Interface Cable .................................................................... 3-14 3.5 External Cable Connection ............................................................................... 3-14 3.6 Software Composition....................................................................................... 3-15 Chapter 4 Operation and Maintenance..................................................... 4-1 4.1 Technical Support............................................................................................... 4-1 4.2 Fault Location .................................................................................................... 4-2 4.3 Equipment Maintenance ..................................................................................... 4-3 4.4 Power On .......................................................................................................... 4-4 4.5 Power Off .......................................................................................................... 4-5 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential I 4.6 Parts Replacement............................................................................................. 4-6 4.6.1 Replacing the ZXSDR R8978.................................................................... 4-6 4.6.2 Replacing the Optical Module.................................................................... 4-7 4.6.3 Replacing the RF Cable............................................................................ 4-8 Chapter 5 Accessory Devices ................................................................... 5-1 5.1 Junction Box ...................................................................................................... 5-1 5.2 AC Power Lightening Protection Box ................................................................... 5-3 5.3 Replacing the AC Power Lighting Protection Box.................................................. 5-6 Chapter 6 Technical Specifications .......................................................... 6-1 6.1 Physical Specifications ....................................................................................... 6-1 6.2 Performance Indexes ......................................................................................... 6-1 6.3 Power Consumption ........................................................................................... 6-2 6.4 Reliability Indexes .............................................................................................. 6-2 6.5 Grounding Requirement...................................................................................... 6-3 6.6 Lightening and Surge Protection ......................................................................... 6-3 Chapter 7 Environment Requirements..................................................... 7-1 7.1 Power Supply Requirements............................................................................... 7-1 7.2 Operating Environment....................................................................................... 7-1 7.3 Storage Environment.......................................................................................... 7-2 Figures............................................................................................................. I Tables ............................................................................................................ III Glossary .........................................................................................................V SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential II About This Manual Purpose This manual describes the software and hardware structures, interfaces and cables, functions, installation modes, networking, and maintenance methods of the ZXSDR R8978. technical specifications, features, Intended Audience This manual is intended for:

l Base station installation engineers l Base station commissioning engineers l Base station maintenance engineers What Is in This Manual This manual contains the following chapters. Chapter 1, FCC Related Statements Chapter 2, Product Overview Describes the statements related to FCC rule. Describes the external view, interfaces, functions, features, and typical network applications of the ZXSDR R8978. Chapter 3, Product Composition Describes the system structure, hardware composition, and software composition of the ZXSDR R8978. Chapter 4, Operation and Maintenance Provides the technical support contact information, power-on and power-off flow, and component replacement methods. Chapter 5, Accessory Devices Chapter 6, Technical Specifications Chapter 7, Environment Requirements Describes the accessory devices, including junction box, and AC power lightening protection box, and the replacement methods. Provides the technical specifications of the ZXSDR R8978. Describes the environment requirements of the ZXSDR R8978. Conventions This manual uses the following conventions. Danger: indicates an imminently hazardous situation. Failure to comply can result in death or serious injury, equipment damage, or site breakdown. Warning: indicates a potentially hazardous situation. Failure to comply can result in serious injury, equipment damage, or interruption of major services. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential I Caution: indicates a potentially hazardous situation. Failure to comply can result in moderate injury, equipment damage, or interruption of minor services. Note: provides additional information about a topic. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential II Chapter 1 FCC Related Statements Warning!

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 10.2 m between the radiator & your body. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 1-1 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 1-2 Chapter 2 Product Overview Table of Contents Product Positioning ....................................................................................................2-1 Product Features........................................................................................................2-2 External View .............................................................................................................2-2 Product Specifications................................................................................................2-3 External Interfaces .....................................................................................................2-5 Installation Modes ......................................................................................................2-6 Typical Networking Applications .................................................................................2-6 2.1 Product Positioning The ZXSDR R8978 is an eight-path TD-LTERRU with high power. It operates with a BBU to cover new outdoor sites. The ZXSDR R8978 works with a BBU to compose a complete eNodeB and implement the functions such as radio transmission in the coverage area and radio channel control. Figure 2-1 illustrates the position of the ZXSDR R8978 in a LTE network. Figure 2-1 Position of the RRU in a Network SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2-1 ZXSDR R8978 User Manual 2.2 Product Features Unified Platform The ZXSDR R8978 is developed based on the unified SDR platform, which supports smooth evolution to new technologies in the future, and protects the operators' investment in maximum. Energy conservation and environmental protection l Designed with high-efficiency power amplifier technologies: Crest Factor Reduction

(CFR), Digital Pre-Distortion (DPD) and Doherty to reduce equipment's power consumption. l Uses passive heat dissipation without electrical noise, which can save 35% power consumption compared with the traditional air conditioner to effectively reduce the operators' power consumption cost. l Supports the energy-saving technologies such as slot-based power saving and voltage regulation power saving. Multi-Carrier, MIMO, BF, and High Performance l Supports multiple frequency bands such as 2.3 GHz/2.6 GHz to satisfy the requirements of various operators. l Supports flexible configuration of up to TD-LTE 4x20 MHz multi-carriers to fully and flexibly utilize the operators' spectrum. High Output Power Up to 160 W (8x20 W) output power is provided to satisfy the power requirements for high capacity and large coverage. 10 Gbps Optical Interface Two 10 Gbps CPRI optical interfaces are provided to satisfy the TD-LTE CPRI flow requirement. CPRI optical interface multi-mode transmission is supported (the 6 Gbps optical interface rate is also supported). 2.3 External View Figure 2-2 shows the external view of the ZXSDR R8978. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2-2 Figure 2-2 External View Chapter 2 Product Overview 2.4 Product Specifications The ZXSDR R8978 is an eight-channel RRU that an be used for networking TD-LTE macro cells. In this manual, all the descriptions for the ZXSDR R8978 are applicable to the following specifications unless specially stated:

l ZXSDR R8978 S2300 l ZXSDR R8978 S2600M l ZXSDR R8978 S2600L 2.4.1 ZXSDR R8978 S2300 For the key features of the ZXSDR R8978 S2300, refer to Table 2-1. Table 2-1 Key Features of the ZXSDR R8978 S2300 Item Radio access mode Frequency band Antenna Description TD-LTE 2300 MHz~2400 MHz Supports 44 MIMO dual TRX channels. Maximum number of carriers TD-LTE: 420 MHz 2-3 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual Item Signal bandwidth Description 80 MHz Maximum power output in each channel 20 W Power input DC: -48 V DC AC: 100 V AC/110 V AC/220 V AC 2.4.2 ZXSDR R8978 S2600M For the key features of the ZXSDR R8978 S2600M, refer to Table 2-2. Table 2-2 Key Features of the ZXSDR R8978 S2600M Item Radio access mode Frequency band Antenna Description TD-LTE 2496 MHz~2690 MHz Smart Antenna RET 8path transceiving channels Maximum number of carriers TD-LTE: 4x20 MHz 2x20 MHz Signal bandwidth 100 MHz Maximum power output in each channel 20 W Power input

-48 VDC 2.4.3 ZXSDR R8978 S2600L For the key features of the ZXSDR R8978 S2600L, refer to Table 2-3. Table 2-3 Key Features of the ZXSDR R8978 S2600L Item Radio access mode Frequency band Antenna Description TD-LTE 2575 MHz~2635 MHz Smart Antenna RET 8path transceiving channels Maximum number of carriers TD-LTE: 3x20 MHz Signal bandwidth 60 MHz Maximum power output in each channel 20 W Power input

-48 VDC 2-4 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2.5 External Interfaces Figure 2-3 illustrates the external interfaces of the ZXSDR R8978. Figure 2-3 External Interfaces Chapter 2 Product Overview For a description of the external interfaces, refer to Table 2-4. Table 2-4 External Interface Description External Device Description External Interface BBU UE BBU performs the functions such as GPS synchronization, main control, and baseband processing. Logical interface: Ir interface Physical interface: optical fiber interface UE accomplishes the Uu interface functions of transmitting voice and data services. Logical interface: Uu interface Physical interface: none User device External environment monitoring device Logical interface: not standardized Physical interface: dry contact SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2-5 ZXSDR R8978 User Manual External Device Description RRULMT Operates and maintains the RRU at the local end Cascade RRU Upstream RRU External Interface Logical interface: not standardized Physical interface: Ethernet interface Logical interface: Ir interface Physical interface: optical fiber interface External interfaces exclude the power and antenna interface of the RRU. Note:

The LMT at the BBU side can operate and maintain multiple RRUs under the BBU. ZTE NetNumen EMS provides unified operation and maintenance on multiple sites. 2.6 Installation Modes The ZXSDR R8978 supports three installation modes:

l A single RRU mounted on a pole l Two RRUs mounted on a pole l Mounted on a wall l Mounted on slot steel l Mounted on angle steel 2.7 Typical Networking Applications The ZXSDR R8978 supports the following networking solutions:

l Chain networking Chain networking applies to strip-shaped areas with sparse population, where optical fibers can be laid conveniently. Figure 2-4 shows a chain networking solution. Figure 2-4 Chain Networking l Star networking In a star networking solution, a BBU is connected to each RRU and the RRU is the terminal equipment. This networking type is simple and easy for maintenance 2-6 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential and engineering. Because the signal passes through fewer intermediate links along the transmission path, the link reliability is much higher. Figure 2-5 shows a star networking solution. Chapter 2 Product Overview Figure 2-5 Star Networking SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2-7 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 2-8 Chapter 3 Product Composition Table of Contents System Structure........................................................................................................3-1 Composition ...............................................................................................................3-2 LED Indicators............................................................................................................3-3 Physical Interfaces and Cables ..................................................................................3-5 External Cable Connection.......................................................................................3-14 Software Composition ..............................................................................................3-15 3.1 System Structure Figure 3-1 shows the system structure of the ZXSDR R8978. Figure 3-1 System Structure Table 3-1 describes the subsystems of the ZXSDR R8978. Table 3-1 Subsystem Description Name RRU software subsystem Transceiver Type Software subsystem Hardware subsystem 8T8R filter unit Hardware subsystem Structure subsystem Structure subsystem Function Provides the system operating system and OM functions l Power interface l Optical interface l Control functions l Clock functions l DIF l TRX Eight-channel filter Provides equipment protection, heat dissipation, and installation, and module structure, heat dissipation, and installation. 3-1 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual 3.2 Composition Figure 3-2 shows the composition of the ZXSDR R8978. Figure 3-2 Product Composition 1. Radiating pin 2. Handle 3. LED indicators 4. Operation and maintenance cavity 5. Antenna interface 6. CAL/AISG interface 7. Grounding bolt 8. Breathable valve 9. EAM/RGPS interface l The operation and maintenance cavity contains one DC power interface, two optical interfaces (OPT1 and OPT2), one RRU LMT/test interface (LAM/TST). l The equipment has six LED indicators. l A handle is installed on the upper shell to facilitate installation and transportation. l At the bottom of the equipment, there are eight antenna interfaces (ANT1ANT8), one hermetic seal (breathable valve), one antenna calibration interface (CAL/AISG), and one dry contract user device interface (EAM/RGPS). SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-2 Chapter 3 Product Composition Note:

The LMT/TST interface is used for ZTE maintenance personnel to perform commissioning and maintenance. 3.3 LED Indicators An indicator indicates the operating status of a device. Figure 3-3 shows the positions of the indicators. Figure 3-3 LED Indicators Table 3-2 describes the LED indicators. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-3 ZXSDR R8978 User Manual Table 3-2 Indicator Descriptions Name Indication Color Description RUN Operation indicator Green OFF: The system is not powered. ON: The system is powered. The software system is not running. Flashing slowly (ON for 1 s and OFF for 1 s): The system is powered. The software system is being started. Flashing normally (ON for 0.3 s and OFF for 0.3 s): The system is powered. The software system has been started. The communication between the RRU and BBU is normal. Flashing fast (ON for 70 ms and OFF for 70 ms): The system is powered. The software system has been started. The link between the ZXSDR R8978 and BBU is not established. ALM Alarm indicator Red OFF: There is no alarm. ON: There is an alarm. OPT1 Indicator of optical interface 1 OPT2 Indicator of optical interface 2 Green OFF: The optical interface does not receive optical signals. ON: The optical interface has received optical signals and the link is not synchronized. Flashing (ON for 0.3 s and OFF for 0.3 s): The optical interface has received optical signals and the link is synchronized. Green OFF: The optical interface does not receive optical signals. ON: The optical interface has received optical signals and the link is not synchronized. Flashing (ON for 0.3 s and OFF for 0.3 s): The optical interface has received optical signals and the link is synchronized. VSWR Indicator of the VSWR at the antenna interface Red OFF: VSWRs at all antenna interfaces of the transmitting links are normal. ON: There is a VSWR alarm at the antenna interface of the transmitting link. ACT Radio link status indicator Green Solid ON: Indicates that the radio links are successfully established, and cells are established. OFF: Indicates that no radio links are established or establishment failed, and no cell exists. The ALM indicator does not indicate alarms of the optical interfaces (OPT1 and OPT2) and VSWR alarms at the antenna interfaces. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-4 3.4 Physical Interfaces and Cables 3.4.1 Protective Grounding Cable Chapter 3 Product Composition Function The protective grounding point is located at the bottom of the handle. The protective grounding cable provides protective ground for the system. There are a total of two bolts that provide a grounding connection to the ZXSDR R8978. The grounding bolt can be connected with a dual hole OT terminal that complies with the GR1089 specification. The OT terminal can be connected to the 16 mm2 multi-cores yellow-green copper wire. External View The protective grounding cable is a 16 mm2 yellow/green cable. Figure 3-4 shows the external view. Figure 3-4 Protective Grounding Cable Connection End A is connected to the grounding interface of the ZXSDR R8978. End B is connected to the external grounding bar. Note:

The connection area of the grounding bolt and OT terminal shall not be less than the area of the OT terminal, and the connection resistance must be less than 50 m. Figure 3-5 illustrates the cable connection. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-5 ZXSDR R8978 User Manual Figure 3-5 Connection of the Protective Grounding Cable Note:

The two bolts on the left are used for installing the protective grounding cable. The bolt on the right is only used for fixing and does not connect to any cable. 3.4.2 DC Power Input Cable Function The DC power input interface is located in the operation and maintenance cavity of the ZXSDR R8978. The DC power input cable leads the external DC power into the operation and maintenance cavity of the ZXSDR R8978. It connects to the DC power through a dual-core DC bracket and a dual-core DC connector, to provide -48 V DC power input for the RRU. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-6 Chapter 3 Product Composition Caution!

The 10 mm2 DC power cable cannot be directly connected to the ZXSDR R8978, and needs to be converted to a 4 mm2 DC power cable through a junction box before connecting to the ZXSDR R8978. The ZXSDR R8978 does not have an AC power interface. The AC power should be converted into DC power through the outdoor AC power lightening protection box and then connected to the ZXSDR R8978. External View The DC power cable is a blue-black cable. Figure 3-6 shows the external view. Figure 3-6 DC Power Input Cable 1. Copper wire 2. Shielding layer 3. 4.

-48 V core

-48 V GND core Signal Description Signal Name

-48 V

-48 V GND Connection Signal Meaning

-48 V power

-48 V ground Wire Color Blue Black If... Then... Use the DC power supply without a junction box The junction box is not required if the indoor power lightening protection box is near to the ZXSDR R8978 and voltage drop can be ignored. The indoor DC power distribution unit (with a power switch) connects to the lighting protection box of the indoor DC power supply. Connect the ZXSDR R8978 to the indoor DC power lighting protection box (there are a total of three outputs in the indoor DC power lighting protection box, each of which has an air switch and can be connected to an RRU). Use the DC power supply with a junction box If voltage drop occurs due to the distance between the ZXSDR R8978 and the indoor DC power lighting protection box, a power cable with a larger diameter size is needed to reduce the voltage drop caused by long SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-7 ZXSDR R8978 User Manual If... Then... distance transmission. A junction box is needed to convert the cables to a different size. The indoor DC power distribution unit (with a power switch) connects to the lighting protection box of the indoor DC power supply. Connect the junction box to the indoor DC power lighting protection box (there are a total of three outputs in the indoor DC power lighting protection box, each of which has an air switch and can be connected to an RRU). After the DC power cable is converted by the junction box, it can be connected to the ZXSDR R8978. Use the AC power supply without a junction box The junction box is not required because the AC power supply is low with a large voltage and voltage drop can be ignored. Connect the indoor AC power distribution cabinet to the outdoor AC power lightening protection box (there are a total of three outputs in the indoor AC power distribution cabinet, each of which has a power switch and can be connected to an RRU). Connect the outdoor AC power lightening protection box to the ZXSDR R8978. Figure 3-7 illustrates the cable connection. Figure 3-7 Connection of DC Power Input Cable SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-8 Chapter 3 Product Composition Note:

l The two cores of the DC power cable End A should be wrapped with a tube terminal. After the tube terminal is crimped and inserted to the dual core DC connector, the DC power cable can be inserted to the dual core DC socket through the DC connector. l The End B of the DC power cable is bare and connects to the external power supply. l The two ends of the power cable must be made at the site. 3.4.3 LMT/TST Interface Cable Function The LMT/TST interface is located in the operation and maintenance cavity. It uses an RJ45 socket. The LMT interface is used for the interaction between the LMT and ZXSDR R8978 through an Ethernet port using TCP/IP. TELNET command lines are supported. Connection End A is connected to the LMT interface in the operation and maintenance cavity. End B is connected to the LMT or PC. Figure 3-8 illustrates the cable connection. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-9 ZXSDR R8978 User Manual Figure 3-8 Connection of the LMT/TST Interface Cable Note:

The LMT/TST interface is used for ZTE maintenance personnel to perform commissioning and maintenance. 3.4.4 Optical Fiber Function The ZXSDR R8978 has two optical interfaces, OPT1 and OPT2. They are located in the operation and maintenance cavity. LC-type optical fiber connectors are supported. In the ZXSDR R8978 system, the optical interfaces have the following functions:

l OPT1 and OPT2 can connect the RRU to an upstream BBU, to carry the IQ data and communication signaling between the RRU and BBU. l If the RRU serves as the upstream RRU. one optical interface can be used to cascade a downstream RRU. l If the RRU serves as the downstream RRU, one optical interface can be used to cascade an upstream RRU. 3-10 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Chapter 3 Product Composition External View The optical fiber uses LC-type connectors. Figure 3-9 shows the external view. Figure 3-9 Optical Fiber Connection End A is connected to the optical ports (OPT1 and OPT2) of the ZXSDR R8978. End B is connected to the BBU/dowstream RRU/upstream RRU. Figure 3-10 illustrates the cable connection. Figure 3-10 Connection of the Optical Fiber 3.4.5 Antenna Feeder Interface Cable Function The antenna feeder interface is located on the external filter at the equipment bottom. It uses N-type female connectors. The antenna feeder interface cable connects the antenna interface of the ZXSDR R8978 to the antenna. It is used for the signal receiving and transmission at the antenna. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-11 ZXSDR R8978 User Manual External View The antenna feeder interface cable is a 50 cable with a diameter of 1/2 in (1 in=25.4 mm). Both ends are N-type male connectors. Figure 3-11 shows the external view. Figure 3-11 Antenna Feeder Interface Cable Connection End A is connected to the ANT interface of the ZXSDR R8978. End B is connected to the corresponding interface of the main antenna feeder. The antenna feeder interface cable is a 1/2 inch jumper. Figure 3-12 illustrates the cable connection. Figure 3-12 Connection of the Antenna Feeder Interface Cable SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-12 3.4.6 CAL/AISG Interface Cable Chapter 3 Product Composition Function The CAL interface is located at the external filter at the bottom of the ZXSDR R8978. It uses a type-N female connector. The CAL interface cable used by the ZXSDR R8978 uses a jumper with a diameter of 1/2 inch. Both ends are N-type male connectors. The CAL interface supports antenna channel calibration and AISG for RET antennas. The CAL interface integrates AISG and antenna calibration. If an RET antenna is used, the CAL interface of the ZXSDR R8978 is connected to the integrated interface of the antenna. External View The CAL interface cable is an RF cable with a diameter of 1/2 in (1 in=25.4 mm). Both ends are N-type male connectors. Figure 3-13 shows the external view. Figure 3-13 CAL Interface Cable Connection End A is connected to the CAL interface of the ZXSDR R8978. End B is connected to the CAL interface of the antenna. Figure 3-14 illustrates the cable connection. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-13 ZXSDR R8978 User Manual Figure 3-14 Connection of the CAL Interface Cable 3.4.7 EAM/RGPS Interface Cable Function The dry contact (EAM) interface is located at the external filter at the bottom of the ZXSDR R8978. It uses an eight-core round connector. It supports the RGPS functions and one dry contract input to transparently transmit the external device status. The RGPS receiver is located at the GPS receiving antenna. Installed near the antenna, the satellite card transmits the output digital signal to the clock main control card through a differential line. Because digital signal transmission is not affected by RF signal attenuation, the remote distance is long and good reliability and maintainability is ensured. Connection End A is connected to the EAM interface of the ZXSDR R8978. End B is connected to the dry contact output/RGPS interface of the external device. 3.5 External Cable Connection Figure 3-15 illustrates the external cable connection. 3-14 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Figure 3-15 External Cable Connection Chapter 3 Product Composition 3.6 Software Composition The ZXSDR R8978 software system is composed of:

l RF management Includes RF main control and RF channel management. l OAM adaptation software Provides an adaptation interface for entire operation and maintenance. Provides the following OAM functions:

management, performance statistics, diagnostic test, system control, and communication processing. configuration management, version test management, security management, l OSS Uses an SDR platform architecture. Provides the functions such as scheduling management, memory management, and timer management. l BSP 3-15 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual Uses a unified architecture design and provides a unified interface for the upper layer. l OS Uses the Linux system independently developed by ZTE. Figure 3-16 shows the software composition of the ZXSDR R8978. Figure 3-16 Software Composition SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 3-16 Chapter 4 Operation and Maintenance Table of Contents Technical Support.......................................................................................................4-1 Fault Location.............................................................................................................4-2 Equipment Maintenance.............................................................................................4-3 Power On...................................................................................................................4-4 Power Off ...................................................................................................................4-5 Parts Replacement.....................................................................................................4-6 4.1 Technical Support ZTE technical support contract information is pasted in a conspicuous position in the equipment room, see Figure 4-1. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-1 ZXSDR R8978 User Manual Figure 4-1 ZTE Technical Support Contact Information 4.2 Fault Location For the fault location methods in routine maintenance, refer to Table 4-1. Table 4-1 Fault Location Methods Maintenance Method Description Checking Alarms and Operation Logs This is the most common method for troubleshooting. By checking the alarm management tab of the operation and maintenance system, you can check the alarms and operation logs. l Check and analysis of the current, historical alarms and common notifications through the alarm management tab, to find the abnormal status, locating and handling faults. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-2 Maintenance Method Performance Analysis Chapter 4 Operation and Maintenance Description l By checking the operation logs in user management, you can trace system parameter modification, locate relevant terminals and operators, and discover the faults caused by manual operations. By checking the performance management tab, you can create different performance test tasks, generate the relevant performance reports to determine the system performance indexes. By analyzing this information, you can find the load distribution in the network and adjust the relevant network parameters, to improve the integrated network performance in time. Instrument and Meter Analysis Auxiliary instruments, such as test UE, signaling analyzers, and bit error analyzers, can be used for fault analysis, fault location and troubleshooting. Replacement Self-test Integrated Method You can replace a faulty part with a spare part or a peer part that operates properly in the system to locate a fault. For fault location by using the replacement method, you need to perform relevant operations in accordance with the replacement procedures described in this manual. The system performs a self-test when it is powered on again. During the self-test, the indicators flash in accordance with relevant rules. You can locate faults by checking the indicators. In actual operation, all the methods can be used for troubleshooting. You can handle different faults based on the fault location methods and past experience. 4.3 Equipment Maintenance For a description of the ZXSDR R8978 equipment maintenance, refer to Table 4-2. Table 4-2 Equipment Maintenance Item Description Check equipment surface Check whether the equipment is damaged or cracked Check the equipment clean condition Check whether there is deposited dust on the equipment surface. If yes, you need to clean the dust. Check labels Check indicators Check whether the equipment and cable labels are clean and clear. In accordance with the description for the indicators, check the indicator status. If any fault occurs, handle it as soon as possible. Fre-

quency Quarterly Quarterly Quarterly Monthly SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-3 ZXSDR R8978 User Manual 4.4 Power On Caution!

Before power on, you need to check the equipment and cable installation in detail, to ensure that all the installation results comply with the engineering installation specifications. Figure 4-2 shows the power-on flow. Figure 4-2 Power-on Flow For a description of the ZXSDR R8978 power-on flow, refer to Table 4-3. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-4 Chapter 4 Operation and Maintenance Table 4-3 Power-on Steps Item Power-on Steps DC power supply 1. Turn on the switch of the power distribution unit, and check whether the equipment output voltage is in the normal range. 2. Turn on the switch of the indoor DC power lighting protection box of the ZXSDR R8978. Power the ZXSDR R8978 on, and test whether the RRU input voltage is in the normal range. 3. Check whether the BBU indicator or the RRU indicator is normal. AC power supply 1. Turn on the switch of the AC power distribution unit of the ZXSDR R8978, and check whether the equipment output voltage is in the normal range. 2. Check whether the BBU indicator or the RRU indicator is normal. Note:

To avoid current surge, you need to power on the RRUs in the cell sequence every 30 s. At the same time, you can check whether the cables of a cell are connected properly through the BBU indicator. 4.5 Power Off Power-off of the ZXSDR R8978 includes:

l Emergency power-off: occurs when the equipment room is on fire, flooding or in smog. l Common power-off: occurs in some application scenarios, for example, equipment move or expected local power outage. For a description of the ZXSDR R8978 power-off flow, refer to Table 4-4. Table 4-4 Power-off Steps Item Emergency Power-off Common Power-off DC power supply Turn off the air switch of the indoor DC power distribution unit. 1. Turn off the air switch of the DC power lighting protection box of the ZXSDR R8978. 2. Turn off the air switch of the indoor DC power distribution unit. AC power supply Turn off the air switch of the indoor AC power distribution unit. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-5 ZXSDR R8978 User Manual 4.6 Parts Replacement 4.6.1 Replacing the ZXSDR R8978 Locate the ZXSDR R8978 faults through observation and analysis, and determine whether to replace the ZXSDR R8978. Replacing the ZXSDR R8978 will interrupt all the services carried by the ZXSDR R8978. Prerequisite l Verify the hardware type of the faulty ZXSDR R8978. Prepare a proper ZXSDR R8978. The specifications of the proper ZXSDR R8978 must be consistent with the faulty one. l Prepare the following tools. Tool Wrench Function Installs or uninstalls the RF cables M5 cross screw driver Installs or uninstalls the ZXSDR R8978 maintenance cavity, or fastens the screws and protection grounding cables. Waterproof tape Provides waterproof protection for the RF cable connectors Sticker Marks the connection of the cables to be replaced (after the replacement, all the cables must be reconnected to the place where they were) Moisture proof antistatic bag and carton Stores the faulty ZXSDR R8978 Steps 1. Power off the ZXSDR R8978. 2. Open the cover of the ZXSDR R8978 maintenance cavity by using the M5 screw driver. 3. Paste a label at each end of every optical fiber. 4. Remove the fix screws from the cable crimper by using the M5 screwdriver. 5. Pull up the insulating part of the dual core DC connector against the direction of the arrow marked on the shell. Pull out the connector and uninstall the power cables. 6. Press the blue crimper of the fiber, and pull the fiber out of the connector. 7. Use the M5 cross screwdriver to remove the grounding bolt and remove the protective grounding cable. 8. Remove all the waterproof tapes from the jumpers of the antenna port. Uninstall the jumper from the ZXSDR R8978 antenna port by using the wrench with insulation protective treatment. 9. Uninstall the AISG/EAM cable. 4-6 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Chapter 4 Operation and Maintenance 10. Tighten the jacking screw clockwise and jack the ZXSDR R8978 chassis. Then, loosen the plate-pressing bolt anti-clockwise. 11. Pull up the ZXSDR R8978 from the pole or wall-mounting bracket, and remove the ZXSDR R8978. 12. Put the faulty equipment into the moisture proof antistatic bag. Label the equipment model, sector ID and fault information on the bag. Put the faulty equipment into the carton and label the same information as the antisatic bag. 13. Reinstall all equipment parts and tighten every screw. 14. Connect all cables with waterproof and insulation protective treatment. 15. Power on the ZXSDR R8978. 16. The ZXSDR R8978 perform the self-test process after it is powered on. During the self-test, you need to observe the indicator status and perform operations accordingly. If... Then... The indicator is normal, which means that services are restored. The self-test and replacement are successful. The indicator is abnormal, which means that services are not restored. Troubleshoot the fault and handle the relevant alarms, or contact ZTE technical support. End of Steps 4.6.2 Replacing the Optical Module The optical module provides the optics and electrical conversion. Replacing the optical module will interrupt all the services carried on the optical module. Caution!

l The optical module supports hot plugging. Before hot plugging, you must wear the antistatic wrist strap. l Do not look directly at the optical module inside when replacing the optical fiber, avoiding damage to your eyes. Prerequisite l Prepare a proper optical module. l Take a record of the connection position at both ends of the faulty optical modules and fibers. Mark the positions between the optical module and fibers. Tool Function Antistatic wrist strap Provides antistatic protection 4-7 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual Tool Function M5 cross screw driver Installs or uninstalls the ZXSDR R8978 maintenance cavity Sticker Marks the connection of the cables to be replaced (after the replacement, all the cables must be reconnected to the place where they were) Moisture-proof antistatic bag and carton Stores the faulty optical module Steps 1. Open the cover of the maintenance cavity by using the M5 screw driver. 2. Paste a label at each end of every optical fiber. 3. Press the blue clamp of the fiber, and pull the fiber connector out of the optical module to be replaced. 4. Pull the optical module out of the slot. 5. Install the proper optical module into the slot. 6. Remove the dustproof cap, and connect the fiber connector to the new optical module. 7. Check whether the optical module is operating properly in accordance with the indicator status. 8. Tighten the fiber clamp and close the maintenance cavity. End of Steps 4.6.3 Replacing the RF Cable The RF cable transmits or receives RF signals. Locate the faults through observation and analysis, and ensure that whether to replace the RF cable. Replacing the RF cable will interrupt all the services carried by the ZXSDR R8978. Prerequisite l Prepare a proper RF cable to be replaced. Each site has a set of RF cables corresponding to the site type.

For BTS expansion or modification, you can select a set of RF cables corresponding to the site type.

For replacement of a single RF cable, you can select a proper RF cable from the RF cable set. Check whether the core connector of the RF cable is proper. l Prepare the following tools. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-8 Chapter 4 Operation and Maintenance Tool Wrench Function Installs or uninstalls the RF cable Waterproof tape Provides waterproof protection for the RF cable connector Sticker Marks the connection of the cable to be replaced (after the replacement, the cable must be reconnected to the place where it was) Moisture-proof antistatic bag and carton Stores the faulty RF cable Steps 1. Power off the ZXSDR R8978. 2. Remove the waterproof tape of the RF cable. 3. Loosen the connectors of the RF cables by using the wrench. 4. Put the faulty cable into the moisture proof antistatic bag. Label the cable model, sector ID and fault information on the bag. Put the faulty cable into the carton and label the same information as the antisatic bag. 5. Connect the proper RF cable in accordance with the previous connection, see Figure 4-3. Figure 4-3 Connecting the RF cable Caution!

During the uninstallation process, take off the connector carefully. Try not to damage the connector. 6. Wrap the RF cable connectors with waterproof tape, see Figure 4-4. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-9 ZXSDR R8978 User Manual Figure 4-4 Waterproof Treatment 7. Power on the ZXSDR R8978. 8. The ZXSDR R8978 performs the self-test process after it is powered on. During the self-test, you need to observe the indicator status and perform operations accordingly. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-10 Chapter 4 Operation and Maintenance If... Then... The indicator is normal, which means that services are restored. The indicator is abnormal, which means that services are not restored. End of Steps The self-test and replacement are successful. Troubleshoot the fault and handle the relevant alarms, or contact ZTE technical support. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-11 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 4-12 Chapter 5 Accessory Devices Table of Contents Junction Box ..............................................................................................................5-1 AC Power Lightening Protection Box..........................................................................5-3 Replacing the AC Power Lighting Protection Box .......................................................5-6 5.1 Junction Box Function When the DC power supply is far from the ZXSDR R8978, to avoid voltage drop, a 210 mm2 DC power cable needs to be used. To connect to the 24 mm2 DC power cable used by the ZXSDR R8978, the 210 mm2 DC power cable should be converted through the junction box. External View Figure 5-1 shows the external view of the junction box. Figure 5-1 Junction Box SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-1 ZXSDR R8978 User Manual Specifications Table 5-1 shows the specifications of the junction box. Table 5-1 Junction Box Specifications Name Specification Height Width Depth 233 mm 119 mm 55 mm (excluding the handle and waterproof cap) Installation Mode For single RRU pole-mounted installation or wall-mounted installation, the junction box can be installed at a side (recommended) or the front of the RRU through an adaptor. For two RUUl pole-mounted installation, the junction box needs to be installed on the pole. Figure 5-2 shows how to install the junction box at a side for example. Figure 5-2 Junction Box Installation Interfaces and Cable Connection Figure 5-3 shows the interfaces and cable connection of the junction box. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-2 Figure 5-3 Interfaces and Cable Connection Chapter 5 Accessory Devices Interface Name Cable Description INPUT OUTPUT 210 mm2 DC power cable 24 mm2 DC power cable 5.2 AC Power Lightening Protection Box Function The outdoor AC power lightening protection box is PPC33 A009. It protects the AC current from lightening and coverts AC into the DC that is applicable for the ZXSDR R8978. External View Figure 5-4 shows the external view of the AC power lightening protection box. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-3 ZXSDR R8978 User Manual Figure 5-4 External View Specifications Table 5-2 shows the specifications of the AC power lightening protection box. Table 5-2 Specifications of the AC Power Lightening Protection Box Item Height Width Depth Specification 300 mm 250 mm 118 mm (excluding the handle and waterproof cap Installation mode Pole-mounted installation, all-mounted installation Lightening protection index 20 kA Installation Modes The AC power lightening protection box can be mounted on a pole or wall, see Figure 5-5. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-4 Figure 5-5 Installation Modes Chapter 5 Accessory Devices Interfaces and Cable Connection Open the AC power lightening protection box and connect the internal and external cables, see Figure 5-6. Figure 5-6 Interfaces and Cable Connection Name

-220 AC_L

-220 AC_N Description 220 V AC live line 220 V AV neutral line 5-5 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual Name

-48 V DC

-48 V DC RTN PE Description

-48 V DC neutral line

-48 V DC earth line Protective grounding cable 5.3 Replacing the AC Power Lighting Protection Box If the AC power lighting protection box has an abnormal output but the input is normal, it has some faults and should be replaced immediately. Prerequisite l Verify the hardware type of the faulty AC power lighting protection box. Prepare a proper AC power lighting protection box. The specifications of the proper AC power lighting protection box must be consistent with the faulty one. l Prepare the following tools. Tool Wrench M4 Inner-hexagon wrench M6 cross screwdriver Function Installs or uninstalls the outdoor AC power lighting protection box from a pole Installs or uninstalls the pole-mounted installation assemblies, or fastens the anti-theft screws Installs or uninstalls the mounting plate and cables of the outdoor AC power lighting protection box Waterproof tape Provides waterproof protection for the cable connectors Sticker Moisture proof antistatic bag and carton Marks the connection of the cables to be replaced (after the replacement, all the cables must be reconnected to the place where they were) Stores the faulty AC power lighting protection box Steps 1. Power off the ZXSDR R8978. 2. Remove the waterproof tape from the cables. Uninstall the cables of the AC power lighting protection box by using the M6 screwdriver 3. Uninstall the anti-theft screws by using the M4 Inner-hexagon wrench, and uninstall the mounting plate by using the M6 cross screw driver. Take the AC power lighting protection box down from the pole. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-6 Chapter 5 Accessory Devices 4. Put the faulty equipment into the moisture proof antistatic bag. Label the equipment model, sector ID and fault information on the bag. Put the faulty equipment into the carton and label with the same information as the antisatic bag. 5. Reinstall the proper AC power lighting protection box, fasten the anti-theft screws, and install the mounting plate and cables. Wrap the cables with the water proof tape. 6. Power on the ZXSDR R8978. End of Steps SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-7 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 5-8 Chapter 6 Technical Specifications Table of Contents Physical Specifications...............................................................................................6-1 Performance Indexes .................................................................................................6-1 Power Consumption ...................................................................................................6-2 Reliability Indexes ......................................................................................................6-2 Grounding Requirement .............................................................................................6-3 Lightening and Surge Protection ................................................................................6-3 6.1 Physical Specifications Table 6-1 shows the physical specifications of the ZXSDR R8978. Table 6-1 Physical Specifications Item Specification Dimensions (H W D) 430 mm 400 mm 125 mm Weight Volume 22 kg 22 L 6.2 Performance Indexes Table 6-2 shows the performance indexes of the ZXSDR R8978. Table 6-2 Performance Indexes Item Index Supported antenna types Dual-polarized smart antenna ( a common antenna type) Receiver sensitivity Frequency deviation Installation Eightantenna circular array smart antenna RET antenna TD-LTE: 105 dBm per channel 0.05 ppm Supports installation in the equipment room. The ZXSDR R8978 is generally installed outdoors. For indoor installation, mount it on a pole or wall. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 6-1 ZXSDR R8978 User Manual Item Maximum distance between the outdoor unit and the antenna Filter Optical module Index 12 m Replaceable Whether the rate is downward compatible Whether the optical module can be replaced on site Yes Yes Rate 26 Gbps / 210 Gbps Optical fiber Number of cascade levels / Maximum distance of a cascade level One cascade level / 10 km 6.3 Power Consumption Table 6-3 shows the power consumption specifications of the ZXSDR R8978. Table 6-3 Power Consumption Specifications Item DL: UL=2:2 DL: UL=3:1 Power Consumption 400 W 580 W 6.4 Reliability Indexes For a description of the reliability indexes of the ZXSDR R8978, refer to Table 6-4. Table 6-4 Reliability Indexes Item Protection level Protection mode MTBF MTTR Availability Service interruption time Annual Return Rate Index IP66 Cast shell

> 180000 h

< 60 min

> 99.9994 %

< 3 min/year

< 2 %

6-2 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Chapter 6 Technical Specifications 6.5 Grounding Requirement In practical applications, the grounding resistance must be less than 10 . 6.6 Lightening and Surge Protection Table 6-5 shows the lightening protection specification of the ZXSDR R8978. Table 6-5 Lightening Protection Specification Item Lightening protection specification Current 20 kA SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 6-3 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 6-4 Chapter 7 Environment Requirements Table of Contents Power Supply Requirements ......................................................................................7-1 Operating Environment...............................................................................................7-1 Storage Environment..................................................................................................7-2 7.1 Power Supply Requirements Table 7-1 shows the requirements for the power supply of the ZXSDR R8978. Table 7-1 Power Requirements Item Requirement DC power supply AC power supply

-48 V DC (fluctuation range: -57 V DC to 37 V DC) The DC power supply must support the anti-reverse connection and over-current protection functions. 100 V AC/110 V AC/220 V AC (fluctuation range: 90 VAC to 290 V AC) If the AC power supply is used, the AC power needs to be converted into DC power through the AC power lightening protection box and then connected to the ZXSDR R8978. 7.2 Operating Environment The ZXSDR R8978 can operate properly in the following conditions:

Climatic Environment Condition Item Lowed temperature Highest temperature Lowest relative humidity Highest relative humidity Temperature change rate Lowest atmospheric pressure Highest atmospheric pressure Description

-40 55 2 %RH 100 %RH 0.5 /min 70 kPa 106 kPa 7-1 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual Item Solar radiation Condensation Precipitation (rain, snow, and hail) Humidity Freezing and frost Biological Environment Condition Description 1120 W/m2 Allowed Allowed Wet surface is allowed Allowed Item Plants Animals Description Mold and fungus are allowed. Rodents and other animals that damage the product are allowed, except termites Chemical Substance Environment Condition Item Salt fog Description Allowed 7.3 Storage Environment To ensure normal operation after installation, the ZXSDR R8978 should be stored in a package in a place with good protection. Climatic Environment Condition Item Lowed temperature Highest temperature Lowest relative humidity Highest relative humidity Temperature change rate Lowest atmospheric pressure Highest atmospheric pressure Solar radiation Condensation Precipitation (rain, snow, and hail) Description

-55 70 10 %RH 100 %RH 1 /min 70 kPa 106 kPa 1120 W/m2 Allowed Allowed Humidity Wet surface is allowed 7-2 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential Chapter 7 Environment Requirements Item Freezing and frost Description Allowed Biologic Environment Condition Item Plants Description Mold and fungus are allowed. Animals Rodents and other animals that damage the product are allowed, except termites Chemical Substance Environment Condition Item Salt fog Description Allowed SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 7-3 ZXSDR R8978 User Manual This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential 7-4 Figures Figure 2-1 Position of the RRU in a Network............................................................. 2-1 Figure 2-2 External View........................................................................................... 2-3 Figure 2-3 External Interfaces................................................................................... 2-5 Figure 2-4 Chain Networking .................................................................................... 2-6 Figure 2-5 Star Networking ....................................................................................... 2-7 Figure 3-1 System Structure ..................................................................................... 3-1 Figure 3-2 Product Composition................................................................................ 3-2 Figure 3-3 LED Indicators ......................................................................................... 3-3 Figure 3-4 Protective Grounding Cable ..................................................................... 3-5 Figure 3-5 Connection of the Protective Grounding Cable......................................... 3-6 Figure 3-6 DC Power Input Cable ............................................................................. 3-7 Figure 3-7 Connection of DC Power Input Cable....................................................... 3-8 Figure 3-8 Connection of the LMT/TST Interface Cable .......................................... 3-10 Figure 3-9 Optical Fiber .......................................................................................... 3-11 Figure 3-10 Connection of the Optical Fiber............................................................ 3-11 Figure 3-11 Antenna Feeder Interface Cable........................................................... 3-12 Figure 3-12 Connection of the Antenna Feeder Interface Cable.............................. 3-12 Figure 3-13 CAL Interface Cable............................................................................. 3-13 Figure 3-14 Connection of the CAL Interface Cable ................................................ 3-14 Figure 3-15 External Cable Connection .................................................................. 3-15 Figure 3-16 Software Composition.......................................................................... 3-16 Figure 4-1 ZTE Technical Support Contact Information ............................................. 4-2 Figure 4-2 Power-on Flow......................................................................................... 4-4 Figure 4-3 Connecting the RF cable.......................................................................... 4-9 Figure 4-4 Waterproof Treatment ............................................................................ 4-10 Figure 5-1 Junction Box ............................................................................................ 5-1 Figure 5-2 Junction Box Installation .......................................................................... 5-2 Figure 5-3 Interfaces and Cable Connection ............................................................. 5-3 Figure 5-4 External View........................................................................................... 5-4 Figure 5-5 Installation Modes.................................................................................... 5-5 Figure 5-6 Interfaces and Cable Connection ............................................................. 5-5 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential I Figures This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential II Tables Table 2-1 Key Features of the ZXSDR R8978 S2300................................................ 2-3 Table 2-2 Key Features of the ZXSDR R8978 S2600M............................................. 2-4 Table 2-3 Key Features of the ZXSDR R8978 S2600L.............................................. 2-4 Table 2-4 External Interface Description.................................................................... 2-5 Table 3-1 Subsystem Description.............................................................................. 3-1 Table 3-2 Indicator Descriptions................................................................................ 3-4 Table 4-1 Fault Location Methods ............................................................................. 4-2 Table 4-2 Equipment Maintenance............................................................................ 4-3 Table 4-3 Power-on Steps......................................................................................... 4-5 Table 4-4 Power-off Steps......................................................................................... 4-5 Table 5-1 Junction Box Specifications ....................................................................... 5-2 Table 5-2 Specifications of the AC Power Lightening Protection Box......................... 5-4 Table 6-1 Physical Specifications .............................................................................. 6-1 Table 6-2 Performance Indexes ................................................................................ 6-1 Table 6-3 Power Consumption Specifications............................................................ 6-2 Table 6-4 Reliability Indexes ..................................................................................... 6-2 Table 6-5 Lightening Protection Specification............................................................ 6-3 Table 7-1 Power Requirements................................................................................. 7-1 SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential III Tables This page intentionally left blank. SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential IV Glossary AISG

- Antenna Interface Standards Group ALM

- Alarm ANT

- Antenna BBU

- Base Band Unit BBU

- Base Band Unit BSP

- Board Support Package CFR

- Crest Factor Reduction DIF

- Digital IF DL

- Down Link DPD

- Digital Pre-Distortion EAM

- Electro-Absorption Modulation eNodeB

- Evolved NodeB GPS

- Global Positioning System IP

- Internet Protocol LMT

- Local Maintenance Terminal LTE

- Long Term Evolution MIMO

- Multiple-Input Multiple-Output V SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential ZXSDR R8978 User Manual MTBF

- Mean Time Between Failures MTTR

- Mean Time To Recovery OAM

- Operation, Administration and Maintenance OS

- Operating System OSS RET

- Remote Electrical Tilt RF

- Radio Frequency RGPS

- Remote GPS RRU

- Remote Radio Unit RRU

- Remote Radio Unit SDR

- Software Defined Radio TCP

- Transmission Control Protocol TD

- Time Division TELNET

- Telecommunication Network Protocol TRX

- Transceiver UE

- User Equipment UL

- Uplink VSWR

- Voltage Standing Wave Ratio SJ-20141113151137-001|2016-08-17 (R1.2) ZTE Proprietary and Confidential VI