DBS3900 Product Description(V400R006_02)

Airbridge DBS3900 CDMA Distribution Base Station

V400R006

Product Description

Issue 02

Date 2008-08-30

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mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 Overall Structure of the DBS3900...........................................................................................1-11.1 Physical Structure of the DBS3900.................................................................................................................1-41.2 Physical Ports of the DBS3900.......................................................................................................................1-7

1.2.1 Physical Ports of the BBU3900..............................................................................................................1-71.2.2 Physical Ports of the RRU3606..............................................................................................................1-91.2.3 Physical Ports of the ODU3601CE......................................................................................................1-10

1.3 Logical Structure of the DBS3900................................................................................................................1-111.3.1 Logical Structure of the BBU3900.......................................................................................................1-111.3.2 Logical Structure of the RRU3606.......................................................................................................1-141.3.3 Logical Structure of the ODU3601CE.................................................................................................1-14

1.4 Software Structure of the BTS......................................................................................................................1-15

2 Solutions for the Auxiliary Devices of the DBS3900..........................................................2-12.1 Indoor Centralized Installation of the DBS3900.............................................................................................2-32.2 Indoor Distributed Installation of the DBS3900.............................................................................................2-42.3 Outdoor Centralized Installation of the DBS3900..........................................................................................2-52.4 Outdoor Distributed Installation of the DBS3900...........................................................................................2-7

3 Configuration Principles of the DBS3900.............................................................................3-13.1 Configuration Principles of the BBU3900......................................................................................................3-23.2 Configuration Principles of the RRU3606/ODU3601CE...............................................................................3-33.3 Configuration Principles of the Power Supply................................................................................................3-33.4 Configuration Requirements of the RF Antennas...........................................................................................3-43.5 Configuration Principles of the Satellite Synchronization Antenna...............................................................3-43.6 Typical Configurations of the DBS3900.........................................................................................................3-5

4 Transmission and Networking of the BTS...........................................................................4-14.1 Star Networking Mode....................................................................................................................................4-24.2 Chain Networking Mode.................................................................................................................................4-24.3 Tree Networking Mode...................................................................................................................................4-3

5 Operation and Maintenance of the BTS................................................................................5-15.1 Operation and Maintenance Modes of the BTS..............................................................................................5-25.2 Operation and Maintenance Functions of the BTS.........................................................................................5-3

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6 Technical Specifications of the DBS3900..............................................................................6-16.1 Performance Specifications of the DBS3900..................................................................................................6-26.2 Physical and electrical specifications of the DBS3900...................................................................................6-6

6.2.1 Technical Specifications of the BBU3900.............................................................................................6-76.2.2 Technical Specifications of the RRU3606.............................................................................................6-86.2.3 Technical Specifications of the ODU3601CE........................................................................................6-8

6.3 Reliability Specifications of the DBS3900.....................................................................................................6-96.4 Lightning Protection Specifications of the DBS3900.....................................................................................6-96.5 Safety Specifications of the DBS3900..........................................................................................................6-106.6 EMC Specifications of the DBS3900............................................................................................................6-116.7 Environmental Specifications of the DBS3900............................................................................................6-12

6.7.1 Storage environment............................................................................................................................6-126.7.2 Transportation Environment................................................................................................................6-156.7.3 Running Environment..........................................................................................................................6-19

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Figures

Figure 1-1 Hardware structure of the DBS3900...................................................................................................1-1Figure 1-2 Major functional modules of the DBS3900........................................................................................1-4Figure 1-3 BBU3900............................................................................................................................................1-4Figure 1-4 Configuration of the BBU3900..........................................................................................................1-4Figure 1-5 RRU3606 without its shell.................................................................................................................1-6Figure 1-6 RRU3606 with its shell.......................................................................................................................1-6Figure 1-7 ODU3601CE......................................................................................................................................1-7Figure 1-8 Logical structure of the BBU3900 configured with the UELP/UFLP.............................................1-12Figure 1-9 Logical structure of the BBU3900 configured with the UTRP........................................................1-13Figure 1-10 Logical structure of the RRU3606..................................................................................................1-14Figure 1-11 Logical structure of the ODU3601CE............................................................................................1-15Figure 1-12 Software structure of the BTS........................................................................................................1-16Figure 2-1 Indoor centralized installation of the DBS3900.................................................................................2-3Figure 2-2 Indoor distributed installation of the DBS3900 (1)............................................................................2-4Figure 2-3 Indoor distributed installation of the DBS3900 (2)............................................................................2-5Figure 2-4 Outdoor centralized installation of the DBS3900...............................................................................2-6Figure 2-5 Outdoor distributed installation of the DBS3900 (1).........................................................................2-8Figure 2-6 Outdoor distributed installation of the DBS3900 (2).........................................................................2-9Figure 4-1 Star networking mode.........................................................................................................................4-2Figure 4-2 Chain networking mode......................................................................................................................4-3Figure 4-3 Tree networking mode........................................................................................................................4-3Figure 5-1 Networking of the operation and maintenance system.......................................................................5-2Figure 6-1 Dimensions of the BBU3900..............................................................................................................6-7

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Tables

Table 1-1 Boards in the BBU3900.......................................................................................................................1-5Table 1-2 Physical ports of the RRU3606............................................................................................................1-9Table 1-3 Physical ports of the ODU3601CE....................................................................................................1-10Table 2-1 Indoor centralized installation of the DBS3900...................................................................................2-3Table 2-2 Auxiliary devices used in the indoor distributed installation of the DBS3900....................................2-5Table 2-3 Auxiliary devices used in the outdoor centralized installation of the DBS3900.................................2-6Table 2-4 Auxiliary devices used in the outdoor distributed installation of the DBS3900..................................2-9Table 3-1 Power supply configuration in indoor installation...............................................................................3-4Table 3-2 Power supply configuration in outdoor installation.............................................................................3-4Table 6-1 Transmit specifications in band class 0 (800 MHz).............................................................................6-2Table 6-2 Receive specifications in band class 0 (800 MHz)..............................................................................6-2Table 6-3 Transmit specifications in band class 1 (1900 MHz)...........................................................................6-3Table 6-4 Receive specifications in band class 1 (1900 MHz)............................................................................6-3Table 6-5 Transmit specifications in band class 5 (450 MHz).............................................................................6-3Table 6-6 Receive specifications in band class 5 (450 MHz)..............................................................................6-4Table 6-7 Transmit specifications in band class 6 (2100 MHz)...........................................................................6-4Table 6-8 Receive specifications in band class 6 (2100 MHz)............................................................................6-4Table 6-9 Transmit specifications in band class 14 (1900 MHz).........................................................................6-5Table 6-10 Receive specifications in band class 14 (1900 MHz)........................................................................6-5Table 6-11 Transmit specifications in band class 15 (AWS)...............................................................................6-5Table 6-12 Receive specifications in band class 15 (AWS).................................................................................6-6Table 6-13 RRU3606 cascading specifications of the DBS3900.........................................................................6-6Table 6-14 BER threshold specifications of the DBS3900 on the transmission links.........................................6-6Table 6-15 Input power supply of the BBU3900.................................................................................................6-7Table 6-16 Technical specifications of the RRU3606..........................................................................................6-8Table 6-17 Technical specifications of the ODU3601CE....................................................................................6-9Table 6-18 Reliability specifications of the DBS3900.........................................................................................6-9Table 6-19 Lightning protection specifications of the DBS3900.......................................................................6-10Table 6-20 Climatic requirements for the storage environment of the equipment.............................................6-12Table 6-21 Requirements for the concentration of mechanically active substances in the storage environment ofthe equipment......................................................................................................................................................6-14Table 6-22 Requirements for the concentration of chemically active substances in the storage environment of theequipment............................................................................................................................................................6-14Table 6-23 Requirements for the mechanical stress in the storage environment of the BBU............................6-15

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Table 6-24 Requirements for the mechanical stress in the storage environment of the RRU............................6-15Table 6-25 Climatic requirements for the transportation environment of the equipment..................................6-16Table 6-26 Requirements for the concentration of mechanically active substances in the transportation environmentof the equipment..................................................................................................................................................6-17Table 6-27 Requirements for the concentration of chemically active substances in the transportation environmentof the equipment..................................................................................................................................................6-17Table 6-28 Requirements for the mechanical stress in the transportation environment of the BBU.................6-18Table 6-29 Requirements for the mechanical stress in the transportation environment of the RRU.................6-18Table 6-30 Climatic requirements for the running environment of the equipment............................................6-19Table 6-31 Requirements for the concentration of mechanically active substances in the running environment ofthe BBU...............................................................................................................................................................6-20Table 6-32 Requirements for the concentration of chemically active substances in the running environment of theBBU.....................................................................................................................................................................6-20Table 6-33 Requirements for the concentration of chemically active substances in the running environment of theRRU.....................................................................................................................................................................6-20Table 6-34 Requirements for the mechanical stress in the running environment of the BBU...........................6-21Table 6-35 Requirements for the mechanical stress in the running environment of the RRU...........................6-21

TablesAirbridge DBS3900 CDMA Distribution Base Station

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About This Document

PurposeThis document describes the overall structure, logical structure, auxiliary devices, configurationprinciples, and networking modes of the DBS3900. In addition, this document describes thetransmit and receive performance, physical and electrical specifications, lightning protectionperformance, and environmental requirements of the DBS3900. You can obtain a comprehensiveunderstanding of the DBS3900 by reading this document.

Product VersionThe following table lists the product version related to this document.

Product Name Product Version

DBS3900 CDMA V400R006

Intended AudienceThis document is intended for:

l Field engineers

l System engineers

Change HistoryFor details, see Change History of the DBS3900 Product Description.

Organization1 Overall Structure of the DBS3900

This describes the overall structure of the DBS3900. The DBS3900 consists of the BBU3900,RRU3606, ODU3601CE, cables, antenna system, and auxiliary devices.

2 Solutions for the Auxiliary Devices of the DBS3900

This describes the solutions for the auxiliary devices of the DBS3900. The DBS3900 uses amodular structure. The basic modules of the DBS3900 are the BBU3900 and RRU3606, and theauxiliary devices of the DBS3900 include the indoor centralized installation rack, APM, storagebattery cabinet, DCDU, EMUA, SLPU, ODF, DDF, DC power system, and AC power system.The basic modules and auxiliary devices can be flexibly configured to form proper site solutions.

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3 Configuration Principles of the DBS3900

This describes the configuration principles of the DBS3900.

4 Transmission and Networking of the BTS

This describes the transmission and networking of the BTS. The networking modes supportedby the BTS are the start networking mode, chain networking mode, and tree networking mode.

5 Operation and Maintenance of the BTS

This describes the operation and maintenance of the BTS. The operation and maintenance of theBTS refers to the management, monitoring, and maintenance of the BTS. The DBS3900 providesvarious methods and platforms for operation and maintenance to cater to different scenarios.

6 Technical Specifications of the DBS3900

This describes the technical specifications of the DBS3900.

Conventions

1. Symbol Conventions

The following symbols may be found in this document. They are defined as follows

Symbol Description

DANGERIndicates a hazard with a high level of risk that, if not avoided,will result in death or serious injury.

WARNINGIndicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save yourtime.

NOTE Provides additional information to emphasize or supplementimportant points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. Forexample,log in as user root .

Italic Book titles are in italics.

About This DocumentAirbridge DBS3900 CDMA Distribution Base Station

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Courier New Terminal display is in Courier New.

3. Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by verticalbars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are inboldface. For example,click OK.

> Multi-level menus are in boldface and separated by the ">" signs.For example,choose File > Create > Folder .

5. Keyboard Operation


Key Press the key.For example,press Enter and press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+Ameans the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

Airbridge DBS3900 CDMA Distribution Base StationProduct Description About This Document


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Action Description

Click Select and release the primary mouse button without moving thepointer.

Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.

Drag Press and hold the primary mouse button and move the pointerto a certain position.

About This DocumentAirbridge DBS3900 CDMA Distribution Base Station

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1 Overall Structure of the DBS3900

About This Chapter

This describes the overall structure of the DBS3900. The DBS3900 consists of the BBU3900,RRU3606, ODU3601CE, cables, antenna system, and auxiliary devices.

Figure 1-1 shows the hardware structure of the DBS3900.

Figure 1-1 Hardware structure of the DBS3900

Functional Modules of the DBS3900

FunctionalModule

Description

BBU3900 As the baseband unit of the DBS3900, this component is responsible forresource management, operation and maintenance, and environmentmonitoring of the system.

RRU3606 As the remote RF module unit of the DBS3900, this component isresponsible for transmitting and receiving radio signals to realize thecommunication between the wireless network and MSs.

Airbridge DBS3900 CDMA Distribution Base StationProduct Description 1 Overall Structure of the DBS3900


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FunctionalModule

Description

ODU3601CE As the remote RF module unit of the DBS3900, this component isresponsible for transmitting and receiving radio signals to realize thecommunication between the wireless network and MSs.

NOTEThe RRU3606 and ODU3601CE differ in that the RRU3606 supports the 800 MHz, 1900 MHz, and 2100MHz band classes and band class 15 (AWS) whereas the ODU3601CE supports the 450 MHz band class.

Auxiliary Devices of the DBS3900

Auxiliary Device Description

APM30 The APM30 is an integrated power backup system for outdoorapplications and has the following features:l Supporting -48 V DC and 110/220 V AC power supply

l Providing at most 12 U [21.00 in.] space for user equipmentwhen not configured with additional devices

l Supporting internal storage batteries in the case of AC input

l Supporting stack installation with the storage battery cabinet,which is optional

DCDU The DCDU is a DC power distribution box and supports one -48V power input and multiple -48 V outputs.

EMUA The EMUA is an environment monitoring unit and implementsmonitoring for the site environment and user equipment.For details about the functions of the EMUA, see the EMUA UserGuide.

SLPU The SLPU is a lightning protection unit. It holds the UELP andUFLP and implements lightning protection for E1/T1 and FE/GE signals for the BBU3900.

DDF DDFs are classified into two types, which are used for coaxialcables and twisted-pair cables respectively. A DDF is requiredwhen the transmission equipment and BBU3900 are configuredin the same cabinet.

DC power supply system Made up of PSUDC/DC modules, the DC power system converts+24 V DC input to -48 V DC output.

AC power supply system Made up of PSUAC/DC modules and PMU modules, the ACpower system converts 220/110 V AC input to -48 V DC output.

1.1 Physical Structure of the DBS3900

1 Overall Structure of the DBS3900Airbridge DBS3900 CDMA Distribution Base Station

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This describes the physical structure of the DBS3900, which consists of the BBU3900,RRU3606, ODU3601CE, and auxiliary devices.

1.2 Physical Ports of the DBS3900This describes the physical ports of the DBS3900.

1.3 Logical Structure of the DBS3900This describes the logical structure of the DBS3900.

1.4 Software Structure of the BTSThis describes the software structure of the BTS. The BTS software consists of the platformsoftware, signaling protocol software, operation and maintenance software, and data center.



1-3

1.1 Physical Structure of the DBS3900This describes the physical structure of the DBS3900, which consists of the BBU3900,RRU3606, ODU3601CE, and auxiliary devices.

Figure 1-2 shows the major functional modules of the DBS3900.

Figure 1-2 Major functional modules of the DBS3900

NOTEIn the 450 MHz band class, the major functional modules of the DBS3900 are the BBU3900 andODU3601CE.

Physical Structure of the BBU3900

Figure 1-3 shows the BBU3900.

Figure 1-3 BBU3900

Figure 1-4 shows the configuration of the BBU3900.

Figure 1-4 Configuration of the BBU3900


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Table 1-1 Boards in the BBU3900

Board Full Name Function

CMPT CDMA MainProcessing&TransmissionUnit

l It processes and transmits databetween the BTS and theBSC, controls and managesthe entire BTS, and providesclock signals for the BTSsystem.

l It supports E1, T1, and FElinks and supports IPtransmission.

HCPM HERT channel processingmodule

It processes the CDMA2000 1Xservice data on forward andreverse channels.

HECM HERT Enhance ChannelProcessing Module

It processes the CDMA2000 1x-EV-DO service data on forwardand reverse channels.

UTRP Universal ExtensionTransmission ProcessingUnit

It provides connection betweenthe BBU3900 and the BSC, andsupports E1/T1 and IPtransmission.

UELP Universal E1/T1 LightingProtection Unit

It provides lightning protectionfor E1/T1 signals.

UFLP Universal FE LightingProtection Unit

It provides lightning protectionfor FE signals.

FAN FAN Unit It provides heat dissipation forthe BBU3900.

UPEU Universal Power andEnvironment Interface Unit

It converts –48 V or +24 V DCpower into +12 V DC power andprovides environmentmonitoring signal ports.

USCU Universal Satellite Card andClock Unit

It provides the input port forexternal signals (includingsatellite clock signals) andprovides synchronization clocksignals for the BBU3900 and theRF modules connected to theBBU3900.

Physical Structure of the RRU3606Figure 1-5 and Figure 1-6 show the RRU3606.



1-5

Figure 1-5 RRU3606 without its shell

Figure 1-6 RRU3606 with its shell

Physical Structure of the ODU3601CEFigure 1-7 shows the ODU3601CE.


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Figure 1-7 ODU3601CE

1.2 Physical Ports of the DBS3900This describes the physical ports of the DBS3900.

1.2.1 Physical Ports of the BBU3900The BBU3900 provides physical ports, including power ports, transmission ports, alarm ports,revered ports, and ports between the BBU3900 and other equipment.

1.2.2 Physical Ports of the RRU3606The physical ports of the RRU3606 are power supply ports, transmission ports,alarmsport,grounding ports, RF ports,and reserved port.

1.2.3 Physical Ports of the ODU3601CEThe physical ports of the ODU3601CE are the ODU port, power port, grounding port, RF port,storage battery port, and alarm port.

1.2.1 Physical Ports of the BBU3900The BBU3900 provides physical ports, including power ports, transmission ports, alarm ports,revered ports, and ports between the BBU3900 and other equipment.

Main Physical Ports

Board PortsQuantity

ConnectorType Function

CMPT E1/T1 port 1 DB26 Tranmission port thatconnects to the BSC.Each port provides fourE1/T1 links.



1-7

Board PortsQuantity


FE electrical port 1 RJ45 Transmission port thatconnects to the BSC.Each port provides oneFE link.l FE electric port,

supporting electriccable

l SFP interface,supporting SFPelectric cable/opticalcable (optical modulerequired)

SFP port 1 SFP

USB connector 1 USB connector Reserved

TEST 1 USB connector Clock test port

ETH port 1 RJ45 Commissioning port,which can be used forlocal maintenance

GPS port 1 SMA Input port for GPSsignals

HCPM/HCEM

SFP 3 SFP Compliable with theCPRI/GIGA protocol,connected to the RF unit

UPEU PWR 1 3W3 Used for the DC powerinput

MON0 1 RJ45 Providing dry contactconnections to twoexternal alarm devicesMON1 1 RJ45

EXT-ALM0 1 RJ45 Providing dry contactconnections to eightexternal alarm devicesEXT-ALM1 1 RJ45

Optional Physical Ports

Board PortsQuantity


UELP INSIDE 1 DB25 Four E1/T1 signalinterfaces, connected tothe internal equipment


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Board PortsQuantity


OUTSIDE 1 DB26 Four E1/T1 signalinterfaces, connected tothe external equipment

UFLP FE0 and FE1ports (INSIDE)

2 RJ45 Connected to the CMPT

FE0 and FE1ports(OUTSIDE)

2 RJ45 Connected to externaldevices

USCU RGPS port 3 8-pin socket Connected to the RGPSsignal cable

BITS port 1 SMA Connected to the BITSclock

Test clock port 1 SMA Output port for test clocksignals

Satellite antennaport

1 SMA Input port for RF signalsof the satellite card

UTRP E1/T1 port 2 DB26 Supporting eight E1/T1links

1.2.2 Physical Ports of the RRU3606The physical ports of the RRU3606 are power supply ports, transmission ports,alarmsport,grounding ports, RF ports,and reserved port.

Table 1-2 lists the physical ports of the RRU3606.

Table 1-2 Physical ports of the RRU3606

Type Port Description Quantity Connector Type

Power supplyports

RTN(+) -48 V DCpower supply

1 OT terminal

NEG(-)

Transmissionports

CPRI_E CPRI ports 1 ESFP socket

CPRI_W CPRI ports 1 ESFP socket

Alarms port RS485/EXT_ALM

RS485 x1signal port

1 DB15

Grounding port - - 4 -



1-9

Type Port Description Quantity Connector Type

RF port ANT_TX/RXA Maintransmitting/receiving port

1 Round andwaterproof DINconnector

ANT_RXB Diversityreceiving port


RX_IN/OUT Used to sharemain receivedsignals withotherRRU3606sport

1 2W2 connector

Reserved port RET/PWR_SRXU

Reserved - -

NOTEThe specifications for the RRU3606 alarm port are: 0.2 kohm for the closed resistance; 51 kohms for theopen resistance.

1.2.3 Physical Ports of the ODU3601CEThe physical ports of the ODU3601CE are the ODU port, power port, grounding port, RF port,storage battery port, and alarm port.

Table 1-3 lists the physical ports of the ODU3601CE.

Table 1-3 Physical ports of the ODU3601CE

Type Description Quantity Connector Type

ODU port Optical port 2 DLC connector

Power port Silkscreen on theMAPM: AC INPUT

1 3-pin aerial femaleconnector

Silkscreen on theMDPM: DC INPUT


Grounding port Grounding bolt l 1 (supporting thedual-hole OTterminal)

l 2 (supporting thesingle-hole OTterminal)

Dual-hole OTterminal or single-hole OT terminal

RF port TX/main RX antennaport



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Type Description Quantity Connector Type

Diversity RXantenna port


Storage battery port The MAPM providesthe storage batteryport. The silkscreenBATTERY.


Alarms port Silkscreen on theMAPM: ALARMINPUT

Four dry contactoutputs

11-pin aerial femaleconnector

Silkscreen on theMDPM: ALARMINPUT

Four dry contactoutputs and one drycontact ground

11-pin aerial femaleconnector

1.3 Logical Structure of the DBS3900This describes the logical structure of the DBS3900.

1.3.1 Logical Structure of the BBU3900This describes the logical structure of the BBU3900, which is responsible for resourcemanagement, operation and maintenance, environment monitoring, and service processing inthe system.

1.3.2 Logical Structure of the RRU3606This describes the logical structure of the RRU3606, which is used for up-conversion and down-conversion of signals and for power amplification.

1.3.3 Logical Structure of the ODU3601CEThis describes the logical structure of the ODU3601CE, which is used for up-conversion anddown-conversion of signals and for power amplification.

1.3.1 Logical Structure of the BBU3900This describes the logical structure of the BBU3900, which is responsible for resourcemanagement, operation and maintenance, environment monitoring, and service processing inthe system.

The BBU3900 can be configured with the UELP/UFLP or UTRP, as shown in Figure 1-8 andFigure 1-9.



1-11

Figure 1-8 Logical structure of the BBU3900 configured with the UELP/UFLP

HCPM: HERT channel processingmodule

HECM: HERT enhanced channelprocessing module

CMPT: main control andtransmission unit

UPEU: universal power andenvironment interface unit

FAN: fan box USCU: universal satellite card andclock unit

UELP: universal E1/T1 lightingprotection unit

UFLP: universal FE/GE lightingprotection unit


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Figure 1-9 Logical structure of the BBU3900 configured with the UTRP

UTRP: universal extended transmission processing unit

NOTE

l The UELP/UFLP or the UTRP cannot be simultaneously configured in the BBU3900.

l When the UTRP is configured, the SLPU, which is independent of the BBU3900, provides lightningprotection for the external signal cables of the BBU3900.

The BBU3900 performs the following functions:

l Providing external ports

– Providing the Abis interface and implementing protocol processing over the Abisinterface

– Providing the interface between the BBU3900 and the RF subsystem

– Implementing protocol processing for the physical layer of the Um interface and theMAC layer of the common channel

– Connecting the DBS3900 to the transmission system and BSC through the E1/T1/FEports provided by the transmission boards

– Connecting the baseband service processing boards to the RF modules through the SFPports provided by the channel boards

l Modulating and demodulating baseband data for CDMA2000 1X and CDMA2000 1xEV-DO services

l Performing encoding and decoding for CDMA channels

l Providing clock signals for system synchronization

l Implementing resource management, operation and maintenance, and environmentmonitoring



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1.3.2 Logical Structure of the RRU3606This describes the logical structure of the RRU3606, which is used for up-conversion and down-conversion of signals and for power amplification.

Figure 1-10 shows the logical structure of the RRU3606.

Figure 1-10 Logical structure of the RRU3606

The RRU3606 performs the following functions:

l On the forward link, implementing up-conversion and power amplification for modulatedtransmitted signals and filtering the transmitted signals to make them meet the requirementsof the air interface protocol

l On the reverse link, filtering the signals received by the antenna to suppress out-bandinterference and then performing low noise amplification, channel division, down-conversion, and channel-selective filtering.

1.3.3 Logical Structure of the ODU3601CEThis describes the logical structure of the ODU3601CE, which is used for up-conversion anddown-conversion of signals and for power amplification.

Figure 1-11 shows the logical structure of the ODU3601CE.


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Figure 1-11 Logical structure of the ODU3601CE

OMTR: outdoor multi-carrier transceiver module OMPA: Outdoor multi-carrier power amplifier

MDFU: micro-BTS duplexer and filter unit MAPM/MDPM: micro-BTS AC-DC power supply module/micro-BTS DC-DC power supply module

The ODU3601CE performs the following functions:

l On the forward links, implementing power-adjustable up-conversion and poweramplification for modulated transmitted signals and filtering the transmitted signals to makethem meet the requirements of the air interface protocol

l On the reverse link, filtering the signals received by the antenna to suppress out-bandinterference and then performing low noise amplification, channel division, down-conversion, and channel-selective filtering.

1.4 Software Structure of the BTSThis describes the software structure of the BTS. The BTS software consists of the platformsoftware, signaling protocol software, operation and maintenance software, and data center.

The signaling protocol software, operation and maintenance software, and data center areapplications, whereas the platform software is supporting software.

Figure 1-12 shows the software structure of the BTS.



1-15

Figure 1-12 Software structure of the BTS

Platform SoftwareThe major functions of the platform software are as follows:l Timing management

l Task management

l Memory management

Data CenterThe data center stores the configuration data of each module.

Signaling Protocol SoftwareThe major functions of the signaling protocol software are as follows:l Radio network layer protocol processing

l Transport network layer protocol processing

l Managing the internal logical resources of the BTS, for example, cells and channels, andimplementing mapping between physical resources and logical resources

Operation and Maintenance SoftwareThe operation and maintenance software works with the maintenance terminal, for example, theLMT or M2000, to perform the operation and maintenance of the BTS.

The major functions of the operation and maintenance software are as follows:l Equipment management

l Data configuration

l Performance management

l Commissioning management

l Alarm management


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l Software management

l Tracing management

l Security management

l Backup management

l Log management



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2 Solutions for the Auxiliary Devices of theDBS3900

About This Chapter

This describes the solutions for the auxiliary devices of the DBS3900. The DBS3900 uses amodular structure. The basic modules of the DBS3900 are the BBU3900 and RRU3606, and theauxiliary devices of the DBS3900 include the indoor centralized installation rack, APM, storagebattery cabinet, DCDU, EMUA, SLPU, ODF, DDF, DC power system, and AC power system.The basic modules and auxiliary devices can be flexibly configured to form proper site solutions.

2.1 Indoor Centralized Installation of the DBS3900This describes the indoor centralized installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606. This mode supports -48 V DC power input. Installingthe DBS3900 on the indoor centralized installation rack as a macro base station makes itconvenient for the operator to manage the spare components and versions in a centralized mannerand to perform maintenance and upgrade in future.

2.2 Indoor Distributed Installation of the DBS3900This describes the indoor distributed installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606/ODU3601CE. This mode supports -48 V DC powerinput. The BBU3900 can be installed in the free space in an indoor 19" cabinet and uses thetransmission and power supply equipment that is already available in the equipment room. TheRRU3606/ODU3601CE can be installed on a wall and close to the RF antenna. In this way, thecosts of feeders and feeder loss are reduced, and the coverage is improved.

2.3 Outdoor Centralized Installation of the DBS3900This describes the outdoor centralized installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606. This mode supports 220/110 V AC and -48 V DCpower input. The BBU3900 can be installed in the APM30, and the RRU3606 can be installedon a wall or pole close to the RF antenna. In this way, the costs of network construction arereduced.

2.4 Outdoor Distributed Installation of the DBS3900This describes the outdoor distributed installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606/ODU3601CE. This mode supports 220/110 V AC and-48 V DC power input. The BBU3900 can be installed in the APM30, and the RRU3606/

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ODU3601CE can be installed on a wall or pole close to the RF antenna. In this way, the costsof network construction are reduced.

2 Solutions for the Auxiliary Devices of the DBS3900Airbridge DBS3900 CDMA Distribution Base Station

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2.1 Indoor Centralized Installation of the DBS3900This describes the indoor centralized installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606. This mode supports -48 V DC power input. Installingthe DBS3900 on the indoor centralized installation rack as a macro base station makes itconvenient for the operator to manage the spare components and versions in a centralized mannerand to perform maintenance and upgrade in future.

Installation Scenarios

Figure 2-1 shows the indoor centralized installation of the DBS3900.

Figure 2-1 Indoor centralized installation of the DBS3900

Auxiliary Devices

Table 2-1 lists the auxiliary devices used in the indoor centralized installation of the DBS3900.

Table 2-1 Indoor centralized installation of the DBS3900

Device Description

Indoor centralizedinstallation rack

Two types of indoor centralized installation racks areavailable and used for the BBU3900 and RRU3606respectively. Indoor centralized installation racks can beinstalled on the ground, on a wall, or in a stack way.



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Device Description

DCDU The DCDU is a DC power distribution box and supports one-48 V power input and multiple -48 V outputs.

NOTE

l The RRU3606 uses different duplexers for the A and AB sub-band classes of the 800 MHz band class.When working in the AB sub-band class of the 800 MHz band class, the RRU3606 does not supportinstallation on the centralized installation rack.

l If the cabinet in the equipment room has enough free space, the BBU3900 can be installed in the cabinet,and the RRU3606 can be installed on a wall. In this case, the indoor centralized installation rack is notrequired, and therefore the space in the equipment room is saved.

l The auxiliary devices should be configured according to the actual situation in the equipment room.

2.2 Indoor Distributed Installation of the DBS3900This describes the indoor distributed installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606/ODU3601CE. This mode supports -48 V DC powerinput. The BBU3900 can be installed in the free space in an indoor 19" cabinet and uses thetransmission and power supply equipment that is already available in the equipment room. TheRRU3606/ODU3601CE can be installed on a wall and close to the RF antenna. In this way, thecosts of feeders and feeder loss are reduced, and the coverage is improved.

Installation Scenariosl Figure 2-2 shows the indoor distributed installation of the BBU3900 and RRU3606.

Figure 2-2 Indoor distributed installation of the DBS3900 (1)

l Figure 2-3 shows the indoor distributed installation of the BBU3900 and ODU3601CE.


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Figure 2-3 Indoor distributed installation of the DBS3900 (2)

Auxiliary DevicesTable 2-2 lists the auxiliary devices used in the indoor distributed installation of the DBS3900.

Table 2-2 Auxiliary devices used in the indoor distributed installation of the DBS3900

Device Description

Indoor centralizedinstallation rack

Two types of indoor centralized installation racks areavailable and used for the BBU3900 and RRU3606respectively. Indoor centralized installation racks can beinstalled on the ground, on a wall, or in a stack way.

DCDU The DCDU is a DC power distribution box and supports one-48 V power input and multiple -48 V outputs.

NOTE

l If the distance between the RRU3606 and the BBU3900 exceeds 50 m [164.04 ft], independent powersupply equipment needs to be configured for the RRU3606.

l The auxiliary devices should be configured according to the actual situation in the equipment room.

2.3 Outdoor Centralized Installation of the DBS3900This describes the outdoor centralized installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606. This mode supports 220/110 V AC and -48 V DCpower input. The BBU3900 can be installed in the APM30, and the RRU3606 can be installedon a wall or pole close to the RF antenna. In this way, the costs of network construction arereduced.



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Installation Scenarios

Figure 2-4 shows the outdoor centralized installation of the DBS3900.

Figure 2-4 Outdoor centralized installation of the DBS3900

Auxiliary Devices

Table 2-3 lists the auxiliary devices used in the outdoor centralized installation of the DBS3900.

Table 2-3 Auxiliary devices used in the outdoor centralized installation of the DBS3900

Device Description

APM30 (220/110 V ACtype)

The APM30 of the 220/110 V AC type is an integrated powersystem that is used for outdoor applications and supports220/110 V AC power input.

APM30 (-48 V DC type) The APM30 of the -48 V DC type is an integrated powerbackup system that is used for outdoor applications andsupports -48 V DC power input.


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Device Description

Storage battery cabinet The storage battery cabinet is optional and used for powerbackup. When the mains supply fails, the storage batterycabinet powers the equipment.

NOTE


l The auxiliary devices should be configured according to the actual situation and power input mode.

2.4 Outdoor Distributed Installation of the DBS3900This describes the outdoor distributed installation of the DBS3900. In this mode, the majormodules are the BBU3900 and RRU3606/ODU3601CE. This mode supports 220/110 V AC and-48 V DC power input. The BBU3900 can be installed in the APM30, and the RRU3606/ODU3601CE can be installed on a wall or pole close to the RF antenna. In this way, the costsof network construction are reduced.

Installation Scenariosl Figure 2-5 shows the outdoor distributed installation of the BBU3900 and RRU3606.



2-7

Figure 2-5 Outdoor distributed installation of the DBS3900 (1)

l Figure 2-6 shows the outdoor distributed installation of the BBU3900 and ODU3601CE.


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Figure 2-6 Outdoor distributed installation of the DBS3900 (2)

Auxiliary DevicesTable 2-4 lists the auxiliary devices used in the outdoor distributed installation of the DBS3900.

Table 2-4 Auxiliary devices used in the outdoor distributed installation of the DBS3900

Device Description

APM30 (220/110 V AC type) The APM30 of the 220/110 V AC type is anintegrated power backup system that is used foroutdoor applications and supports 220/110 V ACpower input.

APM30 (-48 V DC type) The APM30 of the -48 V DC type is an integratedpower backup system that is used for outdoorapplications and supports -48 V DC power input.

Storage battery cabinet The storage battery cabinet is optional and used forpower backup. When the mains supply fails, thestorage battery cabinet powers the equipment.



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NOTE


l The auxiliary devices should be configured according to the actual situation and power input mode.


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3 Configuration Principles of the DBS3900

About This Chapter

This describes the configuration principles of the DBS3900.

3.1 Configuration Principles of the BBU3900This describes the configuration principles of the BBU3900.

3.2 Configuration Principles of the RRU3606/ODU3601CEThis describes the configuration principles of the RRU3606/ODU3601CE.

3.3 Configuration Principles of the Power SupplyThis describes the configuration principles of the power supply to the DBS3900.

3.4 Configuration Requirements of the RF AntennasThis topic describes the general requirements for the cofiguration of RF antennas. In practice,choose antennas according to the actual network planning solution.

3.5 Configuration Principles of the Satellite Synchronization AntennaThis describes the configuration principles of the satellite synchronization antenna.

3.6 Typical Configurations of the DBS3900This describes several typical configurations of the DBS3900. The DBS3900 supports the 450MHz, 800 MHz, 1900 MHz, and 2100 MHz band classes and band class 15 (AWS).

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3.1 Configuration Principles of the BBU3900This describes the configuration principles of the BBU3900.

The BBU3900 is the baseband processing core of the DBS3900.Generally, one BBU3900 isconfigured for each DBS3900.

Configuration Principles of the BBU3900l CMPT configuration

– A maximum of two CMPTs working in 1+1 backup mode can be configured.

– Each CMPT provides four E1/T1 ports and two FE ports. You can configure the CMPTsbased on capacity requirements and service types.

l HPCM configuration– A maximum of six HCMPs can be configured.

– An HCPM reserves three SFP ports and supports removable optical modules.

– An HCPM is configured with only one CSM6700 chip. The chip processes 285 forwardchannels and 256 reverse channels.

l HECM configuration– A maximum of six HECMs can be configured.

– An HECM reserves three SFP ports and supports removable optical modules.

– An HECM is configured with only one CSM6800 chip, which supports 192 subscribers.

l UTRP configuration– A maximum of two UTRPs working in load sharing mode or 1+1 backup mode can be

configured.– Each UTRP provides eight E1/T1 ports.

l FAN configurationA maximum of one FAN can be configured.

l UPEU configurationA maximum of two UPEUs working in 1+1 backup mode can be configured.

l USCU configurationA maximum of two USCUs can be configured. The USCU supports GPS or GPS/GLONASS satellite card and RGPS signals.

l UELP configurationA maximum of two UELPs can be configured. A UELP provides lightning protection forfour E1/T1 links.

l UFLP configurationA maximum of two UELPs can be configured. A UELP provides lightning protection forFE signals and supports two Ethernet connections.

3 Configuration Principles of the DBS3900Airbridge DBS3900 CDMA Distribution Base Station

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NOTE

l With hybrid configuration of HCPMs and HECMs, the BBU3900 supports CDMA2000 1X and 1xEV-DO services.

l The BBU3900 supports hybrid configuration of UELPs and UFLPs.

l The UELP/UFLP or the UTRP cannot be simultaneously configured in the BBU3900.

l When the BBU3900 is configured with the UTRP, the SLPU can be used to provide lightningprotection.

l The SLPU is an external universal lightning protection unit. It can house the UELP/UFLP. It isused for the lightning protection of the E1/T1/FE cables. The SLPU supports mixed configurationof the UELP and the UFLP. A maximum of four lightning protection boards can be configured.

l The BBU3900 can be configured with the CMPT and UTRP at the same time.

l If a new site requires more than four E1/T1 links, Huawei recommends that you use the E1/T1resources on the UTRP directly.

l If an expanded site requires more than four E1/T1 links, Huawei recommends that you use the E1/T1 resources provided by the extended transmission board, apart from the four E1/T1 links on themain control transmission board.

3.2 Configuration Principles of the RRU3606/ODU3601CEThis describes the configuration principles of the RRU3606/ODU3601CE.

The RRU3606/ODU3601CE is the remote RF unit of the DBS3900. A single RRU3606 supportsa maximum of eight carriers,A single ODU3601CE supports a maximum of three carriers.

Configuration Principlel One RRU3606/ODU3601CE supports one sector.

l The RRU3606 supports the 800 MHz, 1900 MHz, and 2100 MHz band classes and bandclass 15 (AWS).

l The ODU3601CE supports the 450 MHz band class.

l Generally, three to six RRU3606s/ODU3601CEs are configured for each DBS3900.

3.3 Configuration Principles of the Power SupplyThis describes the configuration principles of the power supply to the DBS3900.

The DBS3900 can be installed indoors or outdoors. Different installation modes require differentpower supply configurations.

Indoor Installation of the DBS3900When installed indoors, the DBS3900 can be installed in indoor centralized mode or indoordistributed mode. The configuration principles of the power supply in these two modes are thesame, as listed in Table 3-1.



3-3

Table 3-1 Power supply configuration in indoor installation

Power InputMethod

Power Supply Configuration

-48 V DC DCDU

Outdoor Installation of the DBS3900When installed outdoors, the DBS3900 can be installed in outdoor centralized mode or outdoordistributed mode. The configuration principles of the power supply in these two modes are thesame, as listed in Table 3-2.

Table 3-2 Power supply configuration in outdoor installation

Power Input Method Power Supply Configuration

220/110 V AC APM30 (220 V AC type), storage batterycabinet (optional)

-48 V DC APM30 (-48 V DC type), storage batterycabinet (optional)

3.4 Configuration Requirements of the RF AntennasThis topic describes the general requirements for the cofiguration of RF antennas. In practice,choose antennas according to the actual network planning solution.

The general guideline is as follows:

l For omni-directional cells, use omni-directional antennas.

l For directional cells, use directional bi-polarization antennas or directional uni-polarizationantennas according to the actual situation.

l For a large coverage area, use antennas with a great amount of gain (for omni-directionalcells or directional cells).

l For sector antenna configuration, use directional antennas or omni-directional antennasaccording to the sector design in the network planning solution.

l For omni-directional cells, use two omni-directional uni-polarization antennas that workin duplex mode.

3.5 Configuration Principles of the SatelliteSynchronization Antenna

This describes the configuration principles of the satellite synchronization antenna.

The DBS3900 supports GPS/GLONASS satellite cards. The configuration principles of thesatellite synchronization antenna in general situations and situations where system reliabilityneeds to be enhanced are as follows:

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l Generally, one DBS3900 requires only one set of satellite synchronization antennaequipment.

l When the DBS3900 is configured with only the CMPT, the system can receive only GPSsignals.

l When the DBS3900 is configured with the USCU, the system supports GPS satellite cards,GLONASS cards and mainstream cards. In such cases, the system supports the RGPS signalport.

l The USCU supports GPS/GLONASS satellite cards. When the USCU is configured, theCMPT does not support satellite cards.

3.6 Typical Configurations of the DBS3900This describes several typical configurations of the DBS3900. The DBS3900 supports the 450MHz, 800 MHz, 1900 MHz, and 2100 MHz band classes and band class 15 (AWS).

NOTE

l The following configuration examples apply when the band class is 800 MHz, the power supply is 220 VAC, and the equipment is installed outdoors in distributed mode.

l In the 450 MHz band class, the ODU3601CE functions as the RF module.

O(1) ConfigurationIn the O(1) configuration (one carrier, one omni-directional cell), the following components areconfigured:

l One BBU3900

l APM30

l Storage battery cabinet (optional)

l Two omni-directional antennas

l One RRU3606

S(4/4/4) ConfigurationIn the S(4/4/4) configuration (three sectors, four carriers per sector), the following componentsare configured:

l One BBU3900

l APM30

l Storage battery cabinet (optional)

l For each sector, two directional uni-polarization antennas or one directional bi-polarizationantenna

l Three RRU3606s



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4 Transmission and Networking of the BTS

About This Chapter

This describes the transmission and networking of the BTS. The networking modes supportedby the BTS are the start networking mode, chain networking mode, and tree networking mode.

NOTEThe BBU3900 and RRU3606/ODU3601CE form a BTS. For convenience and clarification, the BBU3900and RRU3606/ODU3601CE are collectively referred to as the BTS.

4.1 Star Networking ModeThis describes the application scenarios, advantages, and disadvantages of the star networkingmode.

4.2 Chain Networking ModeThis topic describes the application scenarios, advantages, and disadvantages of the chainnetworking mode.

4.3 Tree Networking ModeThis describes the application scenarios, advantages, and disadvantages of the tree networkingmode.

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4.1 Star Networking ModeThis describes the application scenarios, advantages, and disadvantages of the star networkingmode.

Application ScenariosAs the most commonly used networking mode, the star networking mode is especially applicableto densely populated areas.

Figure 4-1 shows the star networking mode.

Figure 4-1 Star networking mode

Advantagesl The BTS is directly connected to the BSC, thus guaranteeing simplicity in networking and

convenience in engineering, maintenance, and capacity expansion.l Data transmission is implemented directly between the BTS and the BSC, and therefore

signals do not have to go through many nodes. In this way, the reliability of the line is high.

DisadvantagesThe star networking modes requires more transmission resources than other networking modes.

4.2 Chain Networking ModeThis topic describes the application scenarios, advantages, and disadvantages of the chainnetworking mode.

Application ScenariosThe chain networking mode is applicable to sparsely populated strip areas, for example, areasalong superhighways and railways.

Figure 4-2 shows the chain networking mode.

4 Transmission and Networking of the BTSAirbridge DBS3900 CDMA Distribution Base Station

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Figure 4-2 Chain networking mode

Advantages

The chain networking mode helps reduce the costs of transmission equipment, of engineeringconstruction, and of transmission link rental.

Disadvantagesl Signals go through a large number of nodes, and therefore the line reliability is low.

l Faults in upper-level BTSs may affect the normal operation of lower-level BTSs.

l The number of chain levels cannot exceed three.

4.3 Tree Networking ModeThis describes the application scenarios, advantages, and disadvantages of the tree networkingmode.

Application Scenarios

The tree networking mode is applicable to areas where network structures, site distribution, andsubscriber distribution are complicated, for example, areas where subscribers are widelydistributed and hot spots gather.

Figure 4-3 shows the tree networking mode.

Figure 4-3 Tree networking mode

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AdvantagesThe transmission cable loss in tree networking mode is less than that in star networking mode.

Disadvantagesl Signals travel through many nodes, which cause low transmission reliability and

construction and maintenance difficulties.l Faults in upper-level BTSs may affect the normal operation of lower-level BTSs.

l Capacity expansion is difficult because it may require extensive network reconstruction.

l The number of tree levels cannot exceed three.

4 Transmission and Networking of the BTSAirbridge DBS3900 CDMA Distribution Base Station

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5 Operation and Maintenance of the BTS

About This Chapter

This describes the operation and maintenance of the BTS. The operation and maintenance of theBTS refers to the management, monitoring, and maintenance of the BTS. The DBS3900 providesvarious methods and platforms for operation and maintenance to cater to different scenarios.

5.1 Operation and Maintenance Modes of the BTSThis describes the operation and maintenance modes of the BTS. The BTS can be maintainedlocally, through the LMT, or through the centralized network management system.

5.2 Operation and Maintenance Functions of the BTSThis describes the operation and maintenance functions of the BTS. These functions are usedfor equipment management, software management, configuration management, servicemanagement, performance management, security management, alarm management, andenvironment monitoring.

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5.1 Operation and Maintenance Modes of the BTSThis describes the operation and maintenance modes of the BTS. The BTS can be maintainedlocally, through the LMT, or through the centralized network management system.

Figure 5-1 shows the networking of the operation and maintenance system.

Figure 5-1 Networking of the operation and maintenance system

The BTS supports the following operation and maintenance modes:l Maintenance through the centralized network management system: The M2000, Huawei's

centralized management system for wireless networks, can be used to maintain BTSsthrough the operation and maintenance network. The M2000 supports the operation andmaintenance of sites, cells, carriers, channels, and boards. Centralized networkmanagement is used for the maintenance of multiple BTSs.

l Maintenance through the LMT: The LMT can be used to maintain the BTS through theoperation and maintenance link provided by the Abis interface between the BSC and theBTS. The LMT communicates with the BSC through a LAN. Through the LMT, you canperform operation and maintenance for the sites, cells, carriers, channels, and boards. TheLMT is used to configure and adjust the data of the BSC and BTS.

l Local maintenance: The maintenance terminal of the BTS is used to maintain the BTSlocally through Ethernet. Through the maintenance terminal of the BTS, you can performoperation and maintenance for the sites, cells, carriers, baseband, channels, and boards. Themaintenance terminal is used to maintain multiple BTSs.

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5.2 Operation and Maintenance Functions of the BTSThis describes the operation and maintenance functions of the BTS. These functions are usedfor equipment management, software management, configuration management, servicemanagement, performance management, security management, alarm management, andenvironment monitoring.

Equipment ManagementEquipment management refers to equipment maintenance and data configuration. The detailedequipment management functions are as follows:l Equipment maintenance: board resetting, equipment status management, equipment self-

testing, active/standby switchovers, and time calibrationl Data configuration: configuration, querying, and backup of equipment parameters, for

example, configurations of the hardware, clock parameters, algorithm parameters, and RFparameters

Software ManagementThe detailed software management functions are as follows:l Software activation

l Checking the consistency between software and hardware versions

l Querying hardware and software versions

l Upgrading the software version

Configuration ManagementThe detailed configuration management functions are as follows:l Checking data consistency in the addition, deletion, and modification of the BTS data

l Supporting automatic data backup

l Supporting dynamic data configuration, which enables the data to take effect immediately,and static data configuration, which requires the BTS to be reset for the data to take effect

Service ManagementThe detailed service management functions are as follows:l Supporting service operation and maintenance functions, such as parameter setting and

alarm querying, for the equipment, such as baseband boards and environment monitoringdevice

l Supporting complete self-checks for hardware installation

Performance ManagementThe detailed performance management functions are as follows:l Monitoring the performance of the internal and external communication networks and

generating alarms when the performance deteriorates.

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l Monitoring the running of the system, for example, monitoring of the traffic over each portand statistics of technical data during running

l Monitoring of the usage of key components such as the CPUs of boards

Security Management

The BTS supports the management of connection between the BTS software and the OMC,subscriber authentication and encryption, and forward and reverse resolution of interfacemessages.

Alarm Management

Alarm management refers to equipment alarm management and environment alarmmanagement.

l Equipment alarm management

The equipment is monitored in real time. When a fault or exception occurs, an alarm isreported, and the alarm management function of the LMT or M2000 is used to display thealarm information and give suggestions for handling the alarm.

The alarm management system of the M2000 is connected to an alarm box through theserial port and supports both audible and visual alarms. The user can subscribe to the alarms.When an alarm is generated, it is sent to the mobile phones or pagers of maintenancepersonnel so that the maintenance personnel can obtain the information of the fault orexception in time.

l Environment alarm management

Generally, the equipment room of the BTS are sparsely distributed and not attended.Compared with the equipment room of an exchange, the equipment room of the BTS hasfewer and simpler facilities, and the equipment runs in harsh environments. Besides,accidents such as water damage and fire may occur in the equipment room. The BTS hasa powerful environment monitoring subsystem, which guarantees the normal running ofequipment and helps you deal with emergencies.

The detailed alarm management functions are as follows:

l Alarm detection

l Alarm reporting

l Alarm masking

l Alarm confirmation

l Alarm pre-processing

l Alarm correlation processing

l Help information for alarm handling

Environment Monitoring

The detailed environment monitoring functions are as follows:

l Monitoring the environment on an all-round basis

5 Operation and Maintenance of the BTSAirbridge DBS3900 CDMA Distribution Base Station

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6 Technical Specifications of the DBS3900

About This Chapter

This describes the technical specifications of the DBS3900.

6.1 Performance Specifications of the DBS3900This describes the performance specifications of the DBS3900.

6.2 Physical and electrical specifications of the DBS3900This describes the physical and electrical specifications of the DBS3900.

6.3 Reliability Specifications of the DBS3900This describes the reliability specifications of the DBS3900.

6.4 Lightning Protection Specifications of the DBS3900This describes the lightning protection specifications of the DBS3900.

6.5 Safety Specifications of the DBS3900This describes the safety specifications of the DBS3900.

6.6 EMC Specifications of the DBS3900This describes the EMC specifications of the DBS3900.

6.7 Environmental Specifications of the DBS3900This describes the requirements for the storage environment, transportation environment, andrunning environment of the DBS3900.

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6.1 Performance Specifications of the DBS3900This describes the performance specifications of the DBS3900.

NOTE

l The transmit power is the maximum value measured at the RF port of the cabinet.

l The multi-carrier transmit power refers to the total power instead of the power of each carrier.

l The signal receive sensitivity is the main and diversity receive sensitivity at RC3.

l Support for band class 5 is realized through the ODU3601CE, and support for the other band classesare realized through the RRU3606.

Transmitter and Receiver SpecificationsThe transmit and receive specifications refer to the technical parameters of the transceiver ofthe DBS3900. The transmit and receive specifications of the DBS3900 in different band classesare as follows:

l Receive and transmit specifications in band class 0Table 6-1 and Table 6-2 list the performance specifications in band class 0 (800 MHz).

Table 6-1 Transmit specifications in band class 0 (800 MHz)

Item Specification

Working frequencyband

869 MHz to 894 MHz

Channel bandwidth 1.2288 MHz

Channel precision 30 kHz

Frequency tolerance ≤ ±0.05 ppm

Transmit power ≤ 60 W

Table 6-2 Receive specifications in band class 0 (800 MHz)

Item Specification


824 MHz to 849 MHz



Signal receivingsensitivity

Better than -128 dBm (main and diversity receiving at RC3)

l Receive and transmit specifications in band class 1

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Table 6-3 and Table 6-4 list the performance specifications in band class 1 (1900 MHz).


Item Specification


1930 MHz to 1990 MHz






Item Specification










Item Specification


460 MHz to 470 MHz


Channel precision 25 kHz, 20 kHz





6-3


Item Specification


450 MHz to 460 MHz


Channel precision 25 kHz, 20 kHz






Item Specification








Item Specification










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Item Specification








Item Specification







l Receive and transmit specifications in band class 15 (AWS)

Table 6-11 and Table 6-12 list the performance specifications in band class 15 (AWS).

Table 6-11 Transmit specifications in band class 15 (AWS)

Item Specification









6-5

Table 6-12 Receive specifications in band class 15 (AWS)

Item Specification







RRU3606 Cascading SpecificationsTable 6-13 lists the RRU3606 cascading specifications of the DBS3900.

Table 6-13 RRU3606 cascading specifications of the DBS3900

Item Specification

Maximum distance of single-levelcascading

70 km [43.5 mi]

Maximum number of cascading levels Three

Maximum total cascading distance 90 km [55.92 mi]

BER Threshold Specifications of the DBS3900 on the Transmission LinksThe bit error rates (BERs) of transmission links affect the UNI and IMA modes in much thesame way. Table 6-14 lists the BER threshold specifications of the DBS3900 on the transmissionlinks.

Table 6-14 BER threshold specifications of the DBS3900 on the transmission links

Type Maximum BER Threshold

CDMA2000 1X voice services 2 x 10e-5

Packet services 2 x 10e-6

Maintenance function 5 x 10e-5

6.2 Physical and electrical specifications of the DBS3900This describes the physical and electrical specifications of the DBS3900.

6.2.1 Technical Specifications of the BBU3900


Product Description


Issue 02 (2008-08-30)

This describes the technical specifications of the BBU3900.

6.2.2 Technical Specifications of the RRU3606This describes the technical specifications of the RRU3606.

6.2.3 Technical Specifications of the ODU3601CEThe technical specifications of the ODU3601CE consist of the voltage, power consumption,weight, and dimensions.

6.2.1 Technical Specifications of the BBU3900This describes the technical specifications of the BBU3900.

Dimensions

The dimensions (height x width x depth) of the BBU3900 are 86 mm [3.39 in.] x 442 mm [17.40in.] x 310 mm [12.20 in.], as shown in Figure 6-1.

Figure 6-1 Dimensions of the BBU3900

Weightl Empty cabinet (including the FAN and UPEU): ≤ 8 kg [17.64 lb]

l Fully-configured cabinet: ≤ 12 kg [26.46 lb]

Input Power Supply

Table 6-15 Input power supply of the BBU3900

Rated Voltage Range of Input Voltage

+24 V DC +19 V DC to +29 V DC

-48 V DC -38.4 V DC to -57 V DC

NOTE

The UPEU is of two types, namely the UPEA and the UPEB. They support –48 V DC and +24 V DC powerinput respectively

Power Consumption

Power consumption of a fully-configured BBU3900: ≤ 250 W



6-7

Operation Environmentl Ambient temperature

-10℃ to +55℃l Relative humidity of the operating environment

5%RH to 95%RH

6.2.2 Technical Specifications of the RRU3606This describes the technical specifications of the RRU3606.

Table 6-16 lists the technical specifications of the RRU3606.

Table 6-16 Technical specifications of the RRU3606

Item Specification

Voltage -48 V (-36 V DC to -57 V DC)

Power consumption ≤ 300 W

Weight ≤ 17 kg [37.48 lb] (with the shell)≤ 19 kg [41.89 lb] (at 800 MHz AB band, with theshell)

Cabinet dimensions (height x widthx depth)

l 485 mm [19.21 in.] x 285 mm [11.02 in.] x 170 mm[6.10 in.] (with the shell)

l 480 mm [18.90 in.] x 270 mm [10.03 in.] x 140 mm[5.51 in.] (without the shell)

NOTEDimensions of the RRU3606 at 800 MHz AB band:

l 485 mm [19.21 in.] x 285 mm [11.02 in.] x 200 mm [7.87in.] (with the shell)

l 480 mm [18.90 in.] x 270 mm [10.03 in.] x 170 mm [6.10in.] (without the shell)

Ambient temperature for running –40°C [–40°F] to +52°C [125.6°F] (solar radiation notconsidered)

Relative humidity for running 5% RH to 100% RH

6.2.3 Technical Specifications of the ODU3601CEThe technical specifications of the ODU3601CE consist of the voltage, power consumption,weight, and dimensions.

Table 6-17 lists the technical specifications of the RRU3606.


Product Description


Issue 02 (2008-08-30)

Table 6-17 Technical specifications of the ODU3601CE

Item Specification

Voltage l 110 V AC/220 V AC voltage range– 110 V AC (dual-phase) voltage range: 90 V

AC to 135 V AC– 220 V AC (single-phase) voltage range: 176

V AC to 290 V ACl -48 V DC voltage range: -57 V DC to -36 V DC

Power consumption < 570 W

Weight ≤ 45 kg [99.23 lb]

Cabinet dimensions (height x width xdepth)

620 mm [24.41 in.] x 400 mm [15.75 in.] x 405 mm[15.95 in.]

Temperature -40℃ [-40℉] to +52℃ [+125.6℉] (solar radiationnot considered)

Relative humidity 5% to 100%

6.3 Reliability Specifications of the DBS3900This describes the reliability specifications of the DBS3900.

Table 6-18 lists the reliability specifications of the DBS3900.

Table 6-18 Reliability specifications of the DBS3900

Item Specification

Availability ≥ 99.999%

Mean Time Between Failures (MTBF) BBU3900: ≥ 280000 hoursRRU3606: ≥ 260000 hours

Mean Time To Repair (MTTR) ≤ 1 hour (excluding the time neededfor the engineers to arrive at the site)≤ 3 hours (including the time neededfor the engineers to arrive at the site)

6.4 Lightning Protection Specifications of the DBS3900This describes the lightning protection specifications of the DBS3900.

Table 6-19 lists the lightning protection specifications of the DBS3900.



6-9

Table 6-19 Lightning protection specifications of the DBS3900

Item Specification

AC power input port Differential mode: ±40 kA, 8/20 usCommon mode: ±40 kA, 8/20 us

DC power input port Differential mode: ±1 kA, 8/20 usCommon mode: ±2 kA, 8/20 us

T1/E1 input port Differential mode: ±3 kA, 8/20 usCommon mode: ±5 kA, 8/20 us

GPS RF signal input port Differential mode: ±8 kA, 8/20 usCommon mode: ±40 kA, 8/20 us

Dry contact port Differential mode: ±250 A, 8/20 usCommon mode: ±500 A, 8/20 us

DC power input port of the RRU3606 Differential mode: ±10 kA, 8/20 usCommon mode: ±15 kA, 8/20 us

RF antenna port Differential mode: ±8 kA, 8/20 usCommon mode: ±40 kA, 8/20 us

6.5 Safety Specifications of the DBS3900This describes the safety specifications of the DBS3900.

The DBS3900 complies with the following safety standards:

l GB4943-2000: Safety of information technology equipment.

l IEC60950 Safety of information technology equipment Including Electrical BusinessEquipment.

l IEC60215 Safety requirement for radio transmitting equipment.

l CAN/CSA-C22.2 No 1-M94 Audio, Video and Similar Electronic Equipment.

l CAN/CSA-C22.2 No 950-95 Safety of Information Technology Equipment IncludingElectrical Business Equipment.

l UL 1419 Standard for Professional Video and Audio Equipment.

l 73/23/EEC Low Voltage Directive.

l UL 1950 Safety of information technology equipment Including Electrical BusinessEquipment.

l IEC60529 Classification of degrees of protection provided by enclosure. (IP Code).

l GOST 30631-99. General Requirements to machines, instruments and other industrialarticles on stability to external mechanical impacts while operating.

l GOST R 50829-95. Safety of radio stations, radio electronic equipment using transceiversand their components. The general requirements and test methods.


Product Description


Issue 02 (2008-08-30)

l GOST 12.2.007.0-75. Electrotechnical devices. The general safety requirements.

6.6 EMC Specifications of the DBS3900This describes the EMC specifications of the DBS3900.

The DBS3900 complies with the following EMC standards:

l Council Directive 1999/5/EC: Commission communication in the framework of theimplementation of Council Directive 1999/5/EC.

l Council directive 2004/108/EC: DIRECTIVE 2004/108/EC OF THE EUROPEANPARLIAMENT AND OF THE COUNCIL of 15 December 2004.

l CISPR 22: "Limits and methods of measurement of radio disturbance characteristics ofinformation technology equipment".

l IEC 61000-6-1: "Electromagnetic compatibility (EMC) Part 6: Generic standards Section1: Immunity for residential, commercial and light-industrial environments".

l IEC 61000-6-3: "Electromagnetic compatibility (EMC) Part 6: Generic standards Section3: mission standard for residential, commercial and light industrial environments".

l IEC 61000-3-2: "Electromagnetic compatibility (EMC) - Part 3: Limits Section 2: Limitsfor harmonic current emissions (equipment input current = 16 A) ".

l IEC 61000-3-3: "Electromagnetic compatibility (EMC) - Part 3: Limits Section 3:Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipmentwith rated current = 16 A".

l IEC 61000-4-2: " Electromagnetic compatibility (EMC) - Part 4: Testing and measurementtechniques Section 2: Electrostatic discharge immunity test".

l IEC 61000-4-3: " Electromagnetic compatibility (EMC) - Part 4: Testing and measurementtechniques Section 3: Radiated, radio-frequency electromagnetic field immunity test".

l IEC 61000-4-4: " Electromagnetic compatibility (EMC) - Part 4: Testing and measurementtechniques Section 4: Electrical fast transient/burst immunity test".

l IEC 61000-4-5: " Electromagnetic compatibility (EMC) - Part 4: Testing and measurementtechniques Section 5: Surge immunity test".

l IEC 61000-4-6: " Electromagnetic compatibility (EMC) - Part 4: Testing and measurementtechniques Section 6: Immunity to contacted disturbances, induced by radio frequencyfields".

l IEC 61000-4-11: " Electromagnetic compatibility (EMC) - Part 4: Testing andmeasurement techniques Section 11: Voltage dips, short interruptions and voltagevariations. Immunity tests".

l IEC61000-3-2: Electromagnetic compatibility: Part3: limits Section2: limits for harmoniccurrent emissions(equipment input current less than or equal to 16A per phase).

l IEC61000-3-3: Electromagnetic compatibility: Part3: limits Section3: limitation of voltagefluctuations and flicker in low-voltage supply systems for equipment with rated currentless than or equal to 16A.

l ETSI 301 489-1: Electromagnetic compatibility and Radio spectrum Matters (ERM);ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1:Common technical requirements.

l ETSI 301 489-26: ElectroMagnetic compatibility and Radio spectrum Matters (ERM);ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 26:



6-11

Specific conditions for IMT-2000 CDMA Multi-carrier Base Stations and ancillaryequipment.

l CFR 47, FCC Part 15-Radio Frequency Device.

l ITU-R Rec. SM.329-10: "Spurious emissions".

l IEC 61024-1: Protection of structures against lightning.

l IEC 61312-1: Protection Against Lightning Electromagnetic Impulse Part I: GeneralPrinciples.

l ITU-T K.27(1996): Bonding Configurations and Earthing Inside a TelecommunicationBuilding.

l ITU-T K.44 (2003): SERIES K: PROTECTION AGAINST INTERFERENCEResistibility test for telecommunication equipment exposed to overvoltages andovercurrents - Basic recommendation.

l ETS 300 253(1995) Equipment Engineering; Earthing and bonding of telecommunicationequipment in telecommunication centres.

l YD/T5098-2005: Design specifications about the overvoltage protection engineering ofthe telecommunications office.

6.7 Environmental Specifications of the DBS3900This describes the requirements for the storage environment, transportation environment, andrunning environment of the DBS3900.

The DBS3900 complies with the following environmental standards:

l ETSI EN 300 019-1-1 Class1.2



6.7.1 Storage environmentThis describes the requirements for the storage environment of the DBS3900.

6.7.2 Transportation EnvironmentThis describes the requirements for the transportation environment of the DBS3900.

6.7.3 Running EnvironmentThis describes the requirements for the running environment of the DBS3900.

6.7.1 Storage environmentThis describes the requirements for the storage environment of the DBS3900.

Climatic RequirementsTable 6-20 lists the climatic requirements for the storage environment of the equipment.

Table 6-20 Climatic requirements for the storage environment of the equipment

Item Range

Temperature -40oC [-40oF] to +70oC [+158oF]


Product Description


Issue 02 (2008-08-30)

Item Range

Temperature change rate ≤ 1oC/min

Relative humidity BBU: 5%RH to 95%RHRRU: 5%RH to 100%RH

Altitude ≤ 5000 m [16,404.2 ft]

Air pressure 70 kPa to 106 kPa

Solar radiation ≤ 1120 W/m2

Thermal radiation ≤ 600 W/m2

Wind speed BBU: ≤ 30 m/sRRU: ≤ 50 m/s

Waterproofing Requirements

The waterproofing requirements for the storage environment of the equipment are as follows:

l If possible, store the equipment indoors and ensure that:

– No water accumulates on the ground or may drop onto the package of the equipment.

– The equipment is kept away from devices that may leak water, for example, automaticfire-fighting devices and heating devices.

l If the equipment has to be stored outdoors, ensure that:

– The package is intact.

– Appropriate waterproofing measures are taken to prevent rainwater from entering thepackage.

– No water accumulates on the ground or may drop onto the package of the equipment.

– The package is not exposed directly to sunlight.

Biological Requirements

The biological requirements for the storage environment of the equipment are as follows:

l The environment is not conducive to the growth of microorganisms, such as fungi.

l The equipment is protected from rodents, such as mice.

Air Purity Requirements

The air purity requirements for the storage environment of the equipment are as follows:

l The air is free from explosive, electroconductive, magnetoconductive, and corrosive dust.

l The concentration of mechanically active substances complies with the requirements listedin Table 6-21.



6-13

Table 6-21 Requirements for the concentration of mechanically active substances in thestorage environment of the equipment

MechanicallyActive Substance Unit

Concentration

BBU RRU

Suspended dust mg/m3 ≤ 5 ≤ 5

Precipitable dust mg/m2·h ≤ 20 ≤ 500

Grit mg/m3 ≤ 300 ≤ 300

NOTE

l The diameter of a suspended dust particle is not greater than 75 μm.

l The diameter of a precipitable dust particle is not smaller than 75 μm and not greater than 150μm.

l The diameter of a piece of grit is not smaller than 150 μm and not greater than 1000 μm.

l The concentration of chemically active substances complies with the requirements listed

in Table 6-22.

Table 6-22 Requirements for the concentration of chemically active substances in thestorage environment of the equipment

Chemically ActiveSubstance Unit Concentration

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 BBU: ≤ 0.50RRU: ≤ 0.05

NH3 mg/m3 ≤ 1.00

Cl2 mg/m3 ≤ 0.10

HCl mg/m3 ≤ 0.10

HF mg/m3 ≤ 0.01

O3 mg/m3 ≤ 0.05

Mechanical Stress RequirementsTable 6-23 and Table 6-24 list the requirements for the mechanical stress in the storageenvironment of the equipment.


Product Description


Issue 02 (2008-08-30)

Table 6-23 Requirements for the mechanical stress in the storage environment of the BBU

Item Sub-item Range

Sinusoidal vibration Offset ≤ 7.0 mm [0.28 in.] -

Acceleration - ≤ 20 m/s2

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Unsteady impact Impact responsespectrum II

≤ 250 m/s2

Static payload ≤ 5 kPa

NOTE

l The impact response spectrum refers to the maximum acceleration response curve generated by theequipment under specified impact excitation. Impact response spectrum II means that the duration ofsemi-sine impact response spectrum is 6 ms.

l The static payload refers to the capability of the packed equipment to bear the weight from above inthe stipulated stack method.

Table 6-24 Requirements for the mechanical stress in the storage environment of the RRU

Item Sub-item Range


Acceleration - ≤ 5 m/s2



≤ 250 m/s2


NOTE



6.7.2 Transportation EnvironmentThis describes the requirements for the transportation environment of the DBS3900.

Climatic RequirementsTable 6-25 lists the climatic requirements for the transportation environment of the equipment.



6-15

Table 6-25 Climatic requirements for the transportation environment of the equipment

Item Range

Temperature -40oC [-40oF] to +70oC [+158oF]


Relative humidity 5% RH to 95% RH

Altitude ≤ 5000 m [16,404.2 ft]


Solar radiation ≤ 1120 W/m2



Waterproofing RequirementsThe waterproofing requirements for the transportation environment of the equipment are asfollows:

l The package is intact.

l Appropriate waterproofing measures are taken to prevent rainwater from entering thepackage.

l No water accumulates in the vehicle.

Biological RequirementsThe biological requirements for the transportation environment of the equipment are as follows:



Air Purity RequirementsThe requirements for the air purity in the transportation environment of the equipment are asfollows:


l The concentration of mechanically active substances complies with the requirements listedin Table 6-26.


Product Description


Issue 02 (2008-08-30)

Table 6-26 Requirements for the concentration of mechanically active substances in thetransportation environment of the equipment

MechanicallyActive Substance Unit

Concentration

BBU RRU

Suspended dust mg/m3 No requirement ≤ 35

Precipitable dust mg/m2·h ≤ 3.0 ≤ 0.2

Grit mg/m3 ≤ 100 ≤ 30

NOTE

l The diameter of a suspended dust particle is not greater than 75 μm.

l The diameter of a precipitable dust particle is not smaller than 75 μm and not greater than 150μm.

l The diameter of a piece of grit is not smaller than 150 μm and not greater than 1000 μm.


in Table 6-27.

Table 6-27 Requirements for the concentration of chemically active substances in thetransportation environment of the equipment


SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 BBU: ≤ 0.50RRU: ≤ 0.05

NH3 mg/m3 ≤ 1.00

Cl2 mg/m3 ≤ 0.10

HCl mg/m3 ≤ 0.10

HF mg/m3 ≤ 0.01

O3 mg/m3 ≤ 0.05

Mechanical Stress RequirementsTable 6-28 and Table 6-29 list the requirements for the mechanical stress in the transportationenvironment of the equipment.



6-17

Table 6-28 Requirements for the mechanical stress in the transportation environment of theBBU

Item Sub-item Range

Sinusoidalvibration

Offset ≤ 7.5 mm [0.30in.]

- -

Acceleration - ≤ 20.0 m/s2 ≤ 40. 0 m/s2

Frequencyrange

2 Hz to 9 Hz 9 Hz to 200 Hz 200 Hz to 500Hz

Randomvibration

Accelerationspectral density

10 m2/s3 3 m2/s3 1 m2/s3

Frequencyrange


Unsteadyimpact

Impact responsespectrum II

≤ 300 m/s2


NOTE



Table 6-29 Requirements for the mechanical stress in the transportation environment of theRRU

Item Sub-item Range

Sinusoidalvibration

Offset ≤ 3.5 mm [0.14in.]

- -

Acceleration - ≤ 10 m/s2 ≤ 15 m/s2

Frequencyrange


Randomvibration

Accelerationspectral density

30 m2/s3 3 m2/s3 1 m2/s3

Frequencyrange


Unsteadyimpact

Impact responsespectrum II

≤ 250 m/s2



Product Description


Issue 02 (2008-08-30)

Item Sub-item Range

NOTE



6.7.3 Running EnvironmentThis describes the requirements for the running environment of the DBS3900.

Climatic Requirements

Table 6-30 lists the climatic requirements for the running environment of the equipment.

Table 6-30 Climatic requirements for the running environment of the equipment

Item Range

Temperature BBU: -10oC [+14oC] to +55oC [+131oC]

RRU: -40oC [-40oF] to +52°C [+125.6oF](solar radiation not considered)


Relative humidity BBU: 5%RH to 95%RHRRU: 5%RH to 100%RH

Altitude ≤ 4000 m [13,123.36 ft]


Solar radiation BBU: ≤ 700 W/m2

RRU: ≤ 1120 W/m2



NOTEThe temperature and humidity should be measured 1.5 m [4.92 ft] above the ground and 0.4 m [1.31 ft]away from the front of the cabinet when no protective board is installed at the front and rear of the cabinet.

Biological Requirements

The biological requirements for the running environment of the equipment are as follows:



6-19



Air Purity RequirementsThe air purity requirements for the running environment of the equipment are as follows:


l The concentration of mechanically active substances complies with the requirements (forthe BBU only) listed in Table 6-31.

Table 6-31 Requirements for the concentration of mechanically active substances in therunning environment of the BBU

Mechanically ActiveSubstance Unit Concentration

Dust particles Particles/m3 ≤ 3 x 104

(no visible dustaccumulated on desktopswithin three days)

Note: The diameter of a dust particle is not smaller than 5 μm.


in Table 6-32 and Table 6-33.

Table 6-32 Requirements for the concentration of chemically active substances in therunning environment of the BBU


SO2 mg/m3 ≤0.20

H2S mg/m3 ≤0.006

NH3 mg/m3 ≤0.05

Cl2 mg/m3 ≤0.01

Table 6-33 Requirements for the concentration of chemically active substances in therunning environment of the RRU


SO2 mg/m3 ≤0.30

H2S mg/m3 ≤0.10


Product Description


Issue 02 (2008-08-30)


NH3 mg/m3 ≤1.00

Cl2 mg/m3 ≤0.10

HCl mg/m3 ≤0.10

HF mg/m3 ≤0.01

O3 mg/m3 ≤0.05

NOx mg/m3 ≤0.05

Mechanical Stress Requirements

Table 6-34 and Table 6-35 list the requirements for the mechanical stress in the runningenvironment of the equipment.

Table 6-34 Requirements for the mechanical stress in the running environment of the BBU

Item Sub-item Range


Acceleration - ≤ 10.0 m/s2



≤ 100 m/s2

Static payload 0

NOTE



Table 6-35 Requirements for the mechanical stress in the running environment of the RRU

Item Sub-item Range

Sinusoidal vibration Offset ≤ 3 mm [0.12 in.] -

Acceleration - ≤ 10.0 m/s2




6-21

Item Sub-item Range


≤ 250 m/s2

Static payload 0

NOTE




Product Description


Issue 02 (2008-08-30)

Documents

DBS3900 Product Description(V400R006_02)