Table of Contents

ZXG10 B8112 Product Description

ZXG DER 010304 V6.0.1 (2007-04)ZXG10 B8112 Product DescriptionAbout the Document

VersionDateAuthorApproved ByRemarks

V6.0.12007-04GSM Chief Engineer Office

Table of Contents11Introduction

11.1B8112 a member of ZXG10 8000 BTS family

21.2Highlight Features

21.2.1Services Supported

21.2.2Large system capacity and excellent performance

31.2.3Excellent outdoor environment adaptability

31.2.4Advanced RF Technology

41.2.5Flexible and reliable Abis interface

41.2.6Advanced IP based backhaul

41.2.7Built-in transmission

41.2.8Safe and agile power management

41.2.9Advanced PS related feature

52B8112 System Architecture

52.1Cabinet

62.2CMB

62.3F/EIB module

62.4Dual -carrier Transceiver Unit

62.4.1DTRU hardware structure

72.5Antenna Equipment Module

72.5.1NCDU

82.5.2NECDU

92.5.3NMCDU

102.5.4NCEU

112.5.5NCEN

112.6TMM Unit

112.7EAM subsystem

122.8PDM module

122.9PCM module

122.10ZXG10 B8112 Software Structure

122.10.1Software Function and Structure Explanation

133Technical Specifications

133.1Capacity

133.2Operation Frequency

133.3Mechanical Dimension

133.4Weight

133.5Color

133.6Power Requirements

133.7Power Consumption

133.8TRX Output Power

143.9Receiver Sensitivity

143.10Electromagnetic Compatibility (EMC)

143.11External Alarms

143.12Battery Backup

143.13Transmission

143.14Environment Requirements

143.15Redundancy

153.16Reliability

164Radio Configuration Instructions

164.1GSM 850

164.2EGSM

164.3GSM 900M

174.4DCS 1800M

174.5GSM 900/1800 Dual Band

174.6GSM 1900M

185Acronyms and Abbreviations

Figures and TablesFigures

1Figure 1ZXG10 GERAN Product

5Figure 2ZXG10 B8112 Cabinet layout

7Figure 3DTRU

7Figure 4NCDU Structure

8Figure 5NECDU Structure

9Figure 6NMCDU Structure

10Figure 7NCEU Structure

11Figure 8NCEN Structure

12Figure 9ZXG10 B8112 Software Structure

Tables

13Table 1TRX output power of ZXG10 B8112

17Table 2GSM 900M Configuration of ZXG10 B8112

17Table 3GSM 1800M Configuration of ZXG10 B8112

17Table 4Dual-bands Configuration of ZXG10 B8112

1 IntroductionThe purpose of this document is to describe the innovative and powerful ZXG10 B8112, which can accommodate up to 12 TRXs in a single outdoor cabinet. The document aims to give a general overview of the ZXG10 B81121.1 B8112 a member of ZXG10 8000 BTS family

ZXG10 8000 BTS family are designed and manufactured in China. ZXG10 8000 BTS family have integration and modularized structure, small physical dimension, high capacity and low power consumption. The enhanced Network Speedy technology can improve the performance of the radio link and reduce the cost of the ownership. In addition, it gives the operators more flexibility in cells splitting and gets a compromise between capacity and coverage.

ZXG10 8000 BTS family are designed to provide not only GERAN (GPRS EDGE Radio Access Network) integrated services, also plan to provide UMTS compatibility and unlicensed accesses integrated capability such as WiMax, WiFi.

Figure 1 ZXG10 GERAN Product The ZXG10 8000 series BTS support multi-module BTS which cover indoor and outdoor products, including picro-cell, micro cell and macro cell base stations with 2,4,6,12,18 TRXS per rack and various power emission levels. ZXG10 8000 BTS family can meet with various demands for the operators in competitive markets. Multi-module technology means many carriers module are encapsulated in one module and share the same base band process system, which can reduce the hardware cost greatly and reduce the volume and power consumption too. It is the good way to realize the balance of capacity and coverage, then the small volume, low power consumption and great capacity BTS is built.

Perfect compatibility facing towards further evolution: based upon GERAN/UTRAN BTS hardware platform, GERAN/UTRAN carrier can share single rack; seamless evolution can be achieved from EDGE to HSPA; has excellent GSM RF performance; highly integrated carrier module; supports higher data rate modulation; has been ready for evolution to GERAN; has large capacity voice / data solution; can meet the future development.

Facing evolution to integrative network, protects investment of now and future; has been ready for Generic Access Network; supports licensed and non-licensed access e.g. WiFi integrated architecture; constructs Fixed Mobile Convergence network of the future;

Innovative Network Speedy enhanced technology: supports all GERAN bands and dual bands network, FR/EFR/HR/FR-AMR/HR-AMR coding. Sensitivity of micro site and macro site arrives -112dBm. High sensitive antenna and 4-diversity receiver improves sensitivity. Diverse transmitting, interference eliminating and combination and power amplifier technology enhance signal intension. Time schedule expansion realizes vision-exceeded wide coverage, increases coverage efficiency, cuts down CAPEX, expands capability by accelerating GSM/EDGE data rate, insures coverage and traffic equilibrium of EDGE network. The number of BTS deployed will be cut down 9%~25% in same coverage area, which will save investment of operators.1.2 Highlight Features1.2.1 Services Supported1) Circuit-type voice service

Full-rate voice service

Enhanced full-rate voice service

Half rate voice service

AMR voice service 2) Circuit-type data service9.6k bit/s full-rate data service4.8k bit/s full-rate data service

2.4k bit/s full-rate data service

3) GPRS/EDGE serviceGPRS (CS-1 to CS-4) and EGPRS (MCS1 to MCS9);1.2.2 Large system capacity and excellent performanceCapacity: 12TRX/rack

Largest site type: O36, S12/12/12.

6 Cells supported

BTS power control: 6 levels static, 15 levels dynamic, 2dB per step.

Ability of cascades: Supporting 4-level cascade networking. 1.2.3 Excellent outdoor environment adaptability

The ZXG10 B8112 is an outdoor BS using sealed cabinet well protected from water, dust, burglary, rodent nuisance, and electromagnetic shielding.The ZXG10 B8112 is compliable with IP55 protection standards.

The ZXG10 B8112 provides class-C lighting protection.It is designed with heat exchanger technology to meet the requirements for forced cooling, as to improve the reliability of components. It uses an internal heater to make sure that non-industrial components can work normally at low temperature. The equipment is functional when the ambient temperature is between 15C and +50C.The ZXG10 B8112 is neatly structured and reasonably laid out, features good ventilation and cooling system. It is designed in full consideration of security and convenience of installation, operation and maintenance.1.2.4 Advanced RF TechnologyThanks for the double density TRX and with the advanced software radio technologies, the ZXG10 B8112 ensures the long-term reliability of the RF component, and improves the batch consistency and mass production of the equipment. Power compensation in Down-link DPCT (Dual Power Combining Transmission):DTRU are transmitting the same symbol to make this feature available. All the power emission are combined as a whole to increase the emission at the antenna end. The down-link signal power can be increased by 3dB with such combination. DDT (Delay Diversity Transmission):

The signal in down-link will be retransmitted in a specified symbols delay to avoid the related interferences. The delay period can be adjusted by operators with 0.125symbol as step length within 5symbols. The terminal will gather two phases of radio signal carrying the same information but the entire different interference noise. The down-link signal power can be increased by 3dB in time-shifting. Power compensation in Up-link IRC (Interference Rejection Combining ):With the efforts of diversity antenna, BTS can get 11dB gain in software simulation or 5~6dB gain in typical downtown area. By using IRC, BTS should be equipped with at least 2 paths of RX antennas. MRC (Maximum Ratio Combination)BTS will pick up the largest receiving power signal to form the RX from the DTRU. The compare results are generated by the DTRU,

For same amplitude combination, all the RX signals are amplified with the same index, and combined as whole.1.2.5 Flexible and reliable Abis interfaceWith the advanced flow control algorithm and variable rate signaling link technology, multiple logic signaling link can be flexibly configured on the 64K physical link to fully share the bandwidth. Up to 15 carriers can share one E1 line for transmission, and the multiplexing ratio is irrelevant to the site type. When multiple ZXG10 B8112 devices are linked, automatic crossover protection is available for the links of Abis interfaces in case any one of ZXG10 B8112 is power off. 1.2.6 Advanced IP based backhaul

The ZXG10 B8112 provides possibility of Abis interface over IP. It can be connected back over a wide variety of IP network. This feature brings the advantage of the cost effective structure of IP based networks to the existing population of deployed handsets, maximizing the potential return for the operator.1.2.7 Built-in transmission

Reserved 10U space is prepared for SDH and Microwave transmission module. ZXG10 B8112 can layout service simply and rapidly. The demands for the additional transmission facilities are minimized at the same time. 1.2.8 Safe and agile power management AI Power Control

The system will adjust present configuration to be adapted with traffic demands. The life-span of modules will be saved at most without any interference of system performances. Your investments for the extra backup power supply are saved as well.1.2.9 Advanced PS related feature

Facing future evolution and demands for the data service, all the PS related services are available in ZXG10 8000 BTS family production. Including NACC, Dynamic Abis, QoS alarm, DTM, etc. these features will offer extra stability and performance guarantee for the operators.2 B8112 System Architecture2.1 CabinetThe ZXG10 B8112 comprises the following major units: Control & Maintenance Board (CMB) E1 Interface Board / Fast Ethernet Interface Board (EIB/FIB) Dual -carrier Transceiver Unit (DTRU)

Antenna Equipment Module (AEM) Power Distribution Module (PDM) Transmission Module (TMM) Environment Alarm Module (EAM) HEX and Fan Unit

Figure 2 ZXG10 B8112 Cabinet layoutModule Description

EIB/FIB EIB servers to support E1/T1 interface and the extra protection function.

FIB servers to support 100BASE-T interface.

CMBCMB provides the basic operation and central control for the BTS including alarm control, synchronization, radio resource control etc.

DTRUProviding all the radio functions related with terminal communication.

DTRU module is consisted of four parts: DTPBDPBDPAB2 picsDRCB

AEMAEM is in charge of combining several TX signals towards antenna. Including NCDUNMCDUNECDUNCEUNCEN, five types of module.

PDMPDM provides the power distribution function. The power supply is divided to individual boards.

EAMEAM is occupied for alarm signal collection and environment audition.

2.2 CMB

CMB (Control & Maintenance Board) is the major digital board in B8112 providing interface and central control functions. CMB is 1+1 backup status to give full protection for the services. Hardware description is shown below.1 CMB board is in charge of BTS control function, and maintains system synchronization. 2 Providing Abis signaling control function.3 Providing Alarm operation function.4 Generating system performance indices to OMC system.2.3 F/EIB moduleEIBE1/T1 Interface Boardprovides 6 E1/T1 interfaces. The traffic protection and line bypass function are also achieved by this module. The slave rack synchronization interfaces and the cascade protection function are achieved by this board.FIBFast Ethernet Interface Boardprovides 100Base-T FE interface to layout Abis traffic.2.4 Dual -carrier Transceiver Unit2.4.1 DTRU hardware structureThe DTRU is major part of ZXG10 B8112. This module is consisted by four major parts: dual transceiver board DTPB, dual power amplification parts DPAB, dual receiver board DRCB and power supply part DPB.

Figure 3 DTRU Function:1 Providing 2 carriers2 Firmware control under CMB commands3 Generating performance reports and deliver them to CMB in real-time.4 Providing frequency hopping, DPCT, and DDT, 4diversity receiver, and the other radio functions.5 Intelligent power control2.5 Antenna Equipment Module 2.5.1 NCDU

Figure 4 NCDU StructureNCDU interface introduction

ETX: connection towards (internal/external) combiners outputRX1-4: connection towards RX terminal from DTRU

ERX1-2: connections towards NCEU, NCEN to increase capacityFor different frequency bands, NCDU is specified for NCDUG (For 900Mhz)/ NCDUD (For 1800Mhz).NCDU provides antenna interface directly, and combiner included. AEM sub-shelf of B8112 contains six AEM space to adopt six antenna modules, the two TX inputs are connected towards individual DTRU to provide signal combination and RX interfaces are presented to offer RX signals.2.5.2 NECDU

Figure 5 NECDU StructureNECDU interface introduction

ITX: connection towards TXcom terminal from DTRU

RX1-2: connection towards RX terminal from DTRU

RXD1-2: connection towards RX div terminal from DTRU

For different frequency bands, NECDU is specified for NECDUG (For 900Mhz) / NECDUD (For 1800Mhz).

NECDU is only dedicated to layout DPCT and 4-diversity receiver activation for less than 2 frequency points (2 DTRU modules) simultaneously. Only one duplexer built-in and two paths of receiving provide compact AEM module to achieve 4-diversity receive for 2 TRXs. With 2 NECDU modules, 4-diversity can be provided to individual DTRU modules. For larger configuration to activate DPCT and 4-diversity receiver function, NCDU will replace NECDU to provide RX diversity function.2.5.3 NMCDU

Figure 6 NMCDU StructureNMCDU interface introduction

ITX: connection towards TXcom terminal from DTRU/ connection towards internal combiner output

RX1-2: connection towards RX terminal from DTRU

RXD1-2: connection towards RX div terminal from DTRU

For different frequency bands, NMCDU is specified for NMCDUG (For 900Mhz) / NMCDUD (For 1800Mhz).

Only one of duplexer built-in and two paths of receiving provide compact AEM module to achieve diversity receive for 2 TRXs in one dual polarized antenna. This kind of combiner is dedicated for dual-bands co-rack configuration. Associated with NCDU, ZXG10 B8112 can provide maximal S222(band one)+S222(band two) configuration in one cabinet. If operator needs further expansion, NMCDU should be replaced with NCDU to layout larger configuration. NMCDU can also be used to layout DPCT+4-diversity receiver function as application of NECDU.

2.5.4 NCEU

Figure 7 NCEU StructureNCEU interface introduction

OTX1-2: connection towards ETX terminal from NCDUERX1-2: connection towards ERX terminal from NCDUTX1-4: connection towards individual DTRUs TX

RX1-4: connection towards individual DTRUs RX

For different frequency bands, NCEU is specified into NCEUG(For 900Mhz) / NCEUD(For 1800Mhz). NCEU is used to extend the TX and RX terminals. ERX1/2 and OTX1/2 are connected to corresponding interfaces from NCDU. With the efforts of NCEU B8112 can expand capacity from S444 to S888 with higher power emission comparing with NCEN configuration.2.5.5 NCEN

Figure 8 NCEN StructureNCEN interface introduction

OTX1-2: connection towards ETX terminal from NCDUERX1-2: connection towards ERX terminal from NCDUTX1-6: connection towards individual DTRUs TX

RX1-8: connection towards individual DTRUs RX

For different frequency bands, NCEN is specified into NCENG(For 900Mhz) / NCEND(For 1800Mhz).

NCEN is used to extend the radio capacity. All the carriers will pass through these dedicated combiners towards NCDU. ERX1/2 and OTX1/2 are connected towards NCDUs corresponding terminals. With diversity RX interfaces integrated NCDU and NCEN, all the RX available can support 12 TRXs in one pair of antenna.

2.6 TMM Unit

TMM can use the third part transmission device, and the ZXG10 B8112 has provided a 19 (inches) ( 7U standard cabinet for the transmission devices such as SDH and microwave module.2.7 EAM subsystemEAMEnvironment Alarm Moduleoffers environment control function, including temperature, humidity, security,etc. All the information will be sent to CMB module, and the corresponding order sent from CMB controls EAM system to prevent the environmental faults. Heater and heat exchanger will be activated under specific circumstances. Taking the heat resource location into consideration, the fan layers are placed beneath carrier and combiner unit. With the cool air flow, temperature within the rack can be kept under control.2.8 PDM modulePDM (Power Distributor Module) provides each individual module power supply including power and over load control.2.9 PCM modulePCMPower Control Moduleprovides power control function..2.10 ZXG10 B8112 Software Structure2.10.1 Software Function and Structure Explanation

B8112 softwares infrastructure is shown as below:

Figure 9 ZXG10 B8112 Software StructureDCMM software sub-system, DFUC software sub-system, DCHP software sub-system, FIU software sub-system (optional), these software sub-systems run on respective CPU.DCMM software sub-system is responsible for system initialization after the system has been electrified, download of all the single boards software, management of operation and maintenance.

DFUC and DCHP software sub-system is responsible for service processing on board, baseband signal processing as well as management of operation and maintenance on the board.

FIU software sub-system is responsible for the interface with BSC, accomplishing of work flow control of single board, management of resource configuration, management of operation and maintenance. All the software of single boards runs on the respective CPU and the communication among single board implements by HDLC protocol, all the software runs on pSOS (V2.0) system of WindRiver Corporation. 3 Technical Specifications3.1 CapacityCapacity: 1~12 TRX/cabinet.Largest site configuration: O36 or S12/12/12 3.2 Operation FrequencyOperation radio frequency spectra of the ZXG10 B8112 are listed as below.

Radio frequency of GSM 850 system

Radio frequency of E/GSM 900 system

Radio frequency of GSM 1800 system

Radio frequency of GSM 1900 system

3.3 Mechanical Dimension

The outer dimensions of the ZXG10 B8112 rack: 1800mmheight900mmwidth780mmdepth3.4 WeightWhen fully equipped cabinet excluding batteries, a single rack weighs about 380 kg.3.5 ColorThe color of the rack is gray.3.6 Power RequirementsThe ZXG10 B8018 adopts a fully decentralized power supply, compatible with 48V (-57VDC~-40VDC).

The rack case should have perfect grounding performance with the grounding resistance < 5 ohm.. 3.7 Power Consumption

When fully equipped with 12 TRXs, the power consumption of one cabinet is 3200W.3.8 TRX Output PowerFrequency band Output Power

GSM900M/EGSM900GMSK60W / 8PSK40W

GSM850/1800/1900MGMSK60W / 8PSK40W

Table 1 TRX output power of ZXG10 B81123.9 Receiver SensitivityThe static receiver sensitivity of the ZXG10 B8112 system is -112 dBm.3.10 Electromagnetic Compatibility (EMC)Anti-static protection

Capable to protect against the contact discharge of 6000V and air discharge of 8000V.

Surge anti-interference requirement:

Surge anti-interference of the power port: 2000V between lines and the ground.3.11 External AlarmsThe ZXG10 B8112 provides inputs for 20 pairs of external environment trunk nodes, outputs for 3 pairs of trunk nodes and one RS-232 port for transparent transfer which can only be used for power system provided by ZTE.3.12 Battery Backup

External battery backup:External battery backup will be flexible depending on actual configuration from 1 hour to 10 hours. 3.13 TransmissionInside the cabinet, a 19-inch width and 7U height space is set aside for the transmission equipment installation, which is compatible with the miniature transmission equipment from any manufacturer (SDH, PDH, HDSL and micro-wave indoor equipment within the range of 19 inches in width and 10U in height). So it can ensure the unified management over the transmission equipment of the entire network.

The ZXG10 B8112 supports IP based interface, which can take advantage of the existing IP broadband infrastructure. The Abis over IP brings the advantage of the cost structures of IP based networks to the existing population of deployed handsets, maximizing the potential return for the operator. For the local physical interfaces, The ZXG10 B8112 supports 6 pairs of 75 ohm/120 ohm E1 transmission.The ZXG10 B8112 supports 1 FE interface.3.14 Environment RequirementsWorking environment

Temperature range: -40C ~ +50CRelative humidity: 5% ~98%3.15 RedundancyThe whole development flow of products is according to strict judgment and examination flow of the design. Products are strictly judged and examined by experts from their initial research assignment stage to the finalizing of their design. Furthermore, the reliability design guideline runs through the whole R&D process.3.16 ReliabilityIn ZXG10 B8112, the algorithm of system reliability is based on the national military GJB/Z299B Electronic Equipment Reliability Estimation Manual and US military handbook MIL-HDBK-217F Electronic Equipment Reliability Estimation.Mean Time Between Failure (MTBF) of the system is no less than 67K hours and mean time of trouble repair is less than 0.5 hour. 4 Radio Configuration InstructionsOperation radio frequency spectra of the ZXG10 B8112 are listed as below.

4.1 GSM 850

Radio frequency of GSM 850 systemUplink From MS to BTS824MHz~849MHz

Downlink From BTS to MS869MHz~894MHz

The operating bandwidth is 25MHz, interval between send and receive frequency is 45 MHz, each carrier frequency is 200KHz, thus forming 124 carrier frequency channels.

Fu (n) = 824.2 + 0.2 (n 128) (MHz)

Fd (n) = Fu (n) + 45 (MHz)

128 n 251

4.2 EGSM

Radio frequency of EGSM systemUplink From MS to BTS880 MHz~890 MHz

Downlink From BTS to MS925 MHz~935 MHz

The operating bandwidth is 10MHz, interval between send and receive frequency is 45MHz, each carrier frequency bandwidth is 200KHz, thus forming 49 carrier frequency channels.

Fu (n) = 890 + 0.2n (MHz), 0 n 124

Fu (n) = 890 + 0.2 (n 1024) (MHz), 975 n 1023

Fd (n) = Fu (n) + 45 (MHz)

4.3 GSM 900MRadio frequency of GSM 900 systemUplink From MS to BTS890MHz~915MHz

Downlink From BTS to MS935MHz~960MHz

The operating bandwidth is 25MHz, interval between send and receive frequency is 45MHz, each carrier frequency bandwidth is 200KHz, thus forming 124 carrier frequency channels.

Fu (n) = 890 + 0.2n (MHz)

Fd (n) = Fu (n) + 45 (MHz)

The value range: 1n124. n stands for the absolute RF channel No., i.e., ARFCN.Max ConfigNumber of cabinetsTMANumber of NCDUNumber of NCENNumber of AntennasNCDU type

S2/2/21Opt.63G

S4/4/41Opt.63G

S12/12/123Opt663G

Table 2 GSM 900M Configuration of ZXG10 B8112

The number of antennas used is specified for cross-polarized antenna.4.4 DCS 1800MRadio frequency of GSM 1800 systemUplink From MS to BTS1710MHz~1785MHz

Downlink From BTS to MS1805MHz~1880MHz

The operating bandwidth is 75MHz, interval between send and receive frequency is 95 MHz, each carrier frequency is 200KHz, thus forming 374 carrier frequency channels.

Fu (n) = 1710.2 + 0.2 (n 512) (MHz)

Fd (n) = Fu (n) + 95 (MHz)

512 n 885

Max ConfigNumber of cabinetsTMANumber of NCDUNumber of NCENNumber of AntennasNCDU type

S2/2/21Opt.63D

S4/4/41Opt.63D

S12/12/123Opt663D

Table 3 GSM 1800M Configuration of ZXG10 B8112

The number of antennas used is specified for cross-polarized antenna.4.5 GSM 900/1800 Dual Band

Max ConfigNumber of cabinetsTMANumber of NMCDUNumber of Dual-band AntennasNCDU type

S2/2/21Opt.33G/D

S2/2/2Opt.3D/G

Table 4 Dual-bands Configuration of ZXG10 B8112The number of antennas used is specified for cross-polarized antenna.4.6 GSM 1900MRadio frequency of GSM 1900 systemUplink From MS to BTS1850MHz~1910MHz

Downlink From BTS to MS1930MHz~1990MHz

The operating bandwidth is 60MHz, interval between send and receive frequency is 80 MHz, each carrier frequency is 200KHz, thus forming 299 carrier frequency channels.

Fu (n) = 1850.2 + 0.2 (n 512) (MHz)

Fd (n) = Fu (n) + 80 (MHz)

512 n 810

5 Acronyms and AbbreviationsAbbreviationsFull Characteristics

AEMAntenna Equipment Module

BCCHBroadcast Channel

BBCMControl & Maintenance Backplane Board

BBTRTransceiver Backplane Board

NCDUCombiner Distribution Unit

NCEUCombiner Extension Unit

NCENCombiner-distribution Extend Network Unit

CMBControl & Maintenance Board

CMUControl & Maintenance Unit

DDTDelay Diversity Transmission

DIDBIdentifier Board

DPABDual -carrier Power Amplifier Board

DPCTDual Power Combining Transmission

DRCBDual -carrier Radio Carrier Board

DTPBDual -carrier Transceiver Process Board

DTRUDual -carrier Transceiver Unit

DPBDual -carrier Power Supply Board

EAMEnvironment Alarm Module

EDGEEnhanced Data rates for GSM Evolution

EIBE1 Interface Board

FIBFastethernet Interface Board

GMSKGaussian Filtered Minimum Shifting Keying

GPRSGeneral Packet Radio Service

GSMGlobal System For Mobile Communications

HDLCHigh Level Data Link Controller

HPIHost Port Interface

HSNHopping Sequence Number

LAPDLink Access Procedure D Channel

LAULow noise Amplifier Unit

LMTLocal Manager Terminal

LVDSLow Voltage Differential Signaling

McBSPMulti-channel Buffer Serial Port

MMIMan-Machine Interface

MTBFMean Time Between Failures

NACCNetwork Associated Cell Cellection

PCMPower Control Module

PDMPower Distributor Module

SCLKSlice Clock

SDH

Synchronous Digital Hierarchy

TCH

Traffic Channel

TRX

Transceivers

VSWRVoltage Standing Wave Ratio

Copyright 2007 ZTE Corporation Shenzhen P. R. China

ZTE CONFIDENTIAL: This document contains proprietary information of ZTE Corporation and is not to be disclosed or used except in accordance with applicable agreements.

Due to update and improvement of ZTE products and technologies, information of the document is subjected to change without notice.

ZXG10 B8112

Product Description

10U Space for Transmission Equipment

HEX and Fan Unit

AEM

PDM

DTRU

CMB

EAM

EIB/FIB

PAGE ZTE Confidential Proprietary ZXG DER 010304 V6.0.1 (2007-04) I

_1235561670.vsdERX1

RX1

RX2

RX3

NCEN

OTX1

TX1

TX2

TX3

OTX2

TX4

TX5

TX6

RX4

ERX2

RX5

RX6

RX7

RX8

TX1

TX2

TX3

OTX1

OTX2

TX4

TX5

TX6

Combiner1

Combiner2

RX1

RX2

RX3

RX4

Splitter1

RX5

RX6

RX7

RX8

Splitter2

ERX2

ERX1

(a)

(b)

NCEN

_1231929737.vsdNMCDU

ETX1

TX1

TX2

ANT

RX1

RX2

RX2

RX3

RX4

RX3

RX4

TX1

TX2

RX1

RTE

ANT_D

Duplexer

LNA

RX/TX

To ANT

NMCDU

Combiner

Filter