WCDMA BTS3900A Hardware Structure

HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

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Internal

WCDMA BTS3900A Hardware Structure

BTS3900AV200R010


� As an important part of UTRAN,

NodeB mainly processes the signals of

the physical layer of Uu interface

� BTS3900A is a new generation which is

produced by Huawei Co. Ltd.


Upon completion of this course, you will be able to:

� Master the hardware structure of BTS3900A

� Master the working principle of different subsystems and

boards of BTS3900A

� Master the cables connection rules of BTS3900A

� Know typical configurations of BTS3900A


� “BTS3900A Product Description”

� “BTS3900A Hardware Description”


BTS3900A Abbreviations

Advanced power moduleAPM

APM power monitor unit Interface boardAPMI

APM fan monitor unit Interface board AFMU

The power supply unitPSU

The power and environment monitoring unit PMU

WCDMA Radio Filter UnitWRFU

Universal Power and Environment Interface UnitUPEU

Common Protocol Radio Interface CPRI

Universal FE/GE Lighting Protection unit UFLP

Universal Transmission Processing UnitUTRP

Direct Current Distribution Unit-01DCDU-01

Universal E1/T1 Lighting Protection unit UELP

Universal Environment Interface unitUEIU

FMUA

UBFA

WBBPa

WMPT

WCDMA Baseband Process unit Type A

WCDMA Main Processing and Transmission Unit

fan environment monitoring unit

Universal BBU Fan Unit Type A (2U)


NodeB Position in UMTS Network

Iu-BC

RNC

RNC

NodeB

NodeB

NodeB

CS

PS

CBC

UE UTRAN CNUu Iu

Iu-CS

Iu-PS

Iu-BC

Iur

Iub

Iub

Iub

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential

NodeB Location

PSTN ISDN

PSPDN

Uu Interface

BTS3900A

BTS3900A

BTS3900A

BTS3900A

M2000

HLR/AUC/EIR

RNC

MSC/SGSN

SMC

IUInterface

MAP

MAP

TUP,ISUPUE

UE

UE


Chapter 1 NodeB OverviewChapter 1 NodeB Overview

Chapter 2 BTS3900A Hardware StructureChapter 2 BTS3900A Hardware Structure

Chapter 3 BTS3900A Typical ConfigurationChapter 3 BTS3900A Typical Configuration



Section 1 BTS3900A IntroductionSection 1 BTS3900A Introduction

Section 2 Power Modules StructureSection 2 Power Modules Structure

Section 3 Modules StructureSection 3 Modules Structure

Section 4 CablesSection 4 Cables


BTS3900A Appearance

220 AC: Single-phase or three-phase power cable

220 AC input range of voltage

-48V DC:-38.4V DC to -57V DC-48V input range of voltage

+24 DC:+21.6 V DC to +29 V DC +24V input range of voltage

≤ 160KgWeight under full configuration

220 AC: Single-phase or three-phase power cable

110 AC input range of voltage

≤ 120Kg3*1 and 3*2 Weight

600(W)*900(H)*450(D)Dimensions

ParametersType


Typical Configurations of the BTS3900A Cabinet

1. RF cabinet 2. Power cabinet


Typical Configurations of the BTS3900A Cabinet

1. RF cabinet

2. Power cabinet

3. Transmission cabinet

4. Battery cabinet

� The BTS3900A cabinet comprises an RF

cabinet and a power cabinet. The

extension battery cabinet and

transmission cabinet are optional.


BTS3900A Capacity and Characteristics

� System capacity specifications:

�BTS3900A can support up to: uplink and downlink 1536 CEs

�BTS3900A can support up to: 6*4 cells or 3*8 cells

� Characteristics

�Transmission Type: E1/T1, FE (electrical port ), FE (optical port ),

�Networking mode: star, chain and tree

�Synchronization clock sources: Iub interface clock, GPS, and internal clock

�Handover types: softer handover, soft handover and hard handover

�Services: CS services, PS services , mixed services and position services

�Enhanced functions：HSPA, MBMS, RAN sharing and RET as well


BTS3900A Logical Structure


RF Cabinet ModulesRF Cabinet Modules

� The BTS3900A cabinet comprises an RF cabinet and a power cabinet. The

extension battery cabinet and transmission cabinet are optional.

� The RF cabinet comprises the following entities: WRFU, DCDU , FMUA, and FAN unit. The power cabinet comprises the following entities: BBU,

PDU, PMU and PSU.

� You can choose to configure the BTS3900A with a battery cabinet and a transmission cabinet. This helps to expand the battery capacity and the

installation space for optional user devices.


RF Cabinet Modules --- WRFU Board

� The WRFU consists of the high-speed interface unit, signal processing unit,

power amplifier, and duplex unit.


RF Module --- WRFU Board

Used for commissioningRJ45 connectorCOMCommissioning port

Introducing power3V3 power connector

POWERPower port

Output port of diversity signals in the antenna channel

QMA female connector

LNA0-OUT

Input port of diversity signals in the antenna channel

QMA female connector

LNA1-INInterconnection port for RF receive signals

Connecting the lower-level WRFU during the cascading

SFP female connector

CPRI_E

Connecting the BBU, or the upper-level WRFU during the cascading

SFP female connector

CPRI_WCPRI

N series female connector

ANT-TX/RXM

Connecting the antenna subsystem

N series female connector

ANT-RXDPort for transceiving RF signals

DescriptionConnector TypeLabelType


The CPRI link is out of lock.Red LED on for 1 second and off for 1 second

The interface module fails to receive signals.On (red)

The CPRI link is normal.On (green)CPRI_WCPRI_E

A VSWR alarm is generated.On (red)

No VSWR alarm is generated.Off (red)VSWR

The module is in the local test status.On for 1 second and off for 1 second

The module is not connected to the BBU.Off

The module is functional and is connected to the BBU.OnTX_ACT

No alarm is generated.Off

The module is in the alarm status.OnALM

The module is loading software or is not started.On for 0.125 second and off for 0.125 second

The module is functional.On for 1 second and off for 1 second

There is no power input, or the module is faulty.Off

The power input is normal, but the module is faulty.OnRUN

MeaningStatusIdentifier




� RF specifications:

� One WRFU supports four carriers.

� Each carrier’s maximum output power of WRFU is 80W;

� The receive sensitivity of single antenna is better than -125.8dBm;

� The receive sensitivity of two antennas is better than -128.6dBm;

� The maximum searching ability is180km. The maximum access search radius is

configurable with the step size of 300 m;

20

40

80

Transmit Diversity Power (W)/Carrier

1020

610

520

Typical Power Consumption (W)

13303*4

8303*2

6303*1

Maximum Power Consumption (W)

Configuration Type (No Transmit Diversity)


RF Cabinet Modules --- DCDU-02 Board� The direct current distribution unit

(DCDU) module leads power to each component in the cabinet.

� Functions

� The DCDU supports the 1-way -

48 V DC power input and 4-way -48 V DC power output.

� The DCDU leads -48 V DC power

to the WRFU and FMUA in the RF cabinet.

� The DCDU-02 has the built-in

surge protector board, which provides 10 kA surge protection

capability in differential mode and

15 kA in common mode.

� DCDU-02 in the 3RFU cabinet or in the left of the 6RFU cabinet

� DCDU-02 in the 3RFU cabinet or in the right of the 6RFU cabinet


RF Cabinet Modules --- DCDU-02 Board

DUDU dry contact alarm output port SPD ALMAlarm output port

•RFU0 to RFU2 controlling the current of the three WRFUs in the 3RFU cabinet or in the left of the 6RFU cabinet•RFU3 to RFU5 controlling the current of the three WRFUs in the 6RFU cabinet or in the right of the 6RFU cabinet•FMUA controlling the current of the FMUA•SPARE controlling the current of the SPARE power output port

RFU0 to RFU5, FMUA, and SPARE

Power switch

•RFU0 to RFU2 supplying power to the three WRFUs in the 3RFU cabinet or in the left of the 6RFU cabinet•RFU3 to RFU5 supplying power to the three WRFUs in the right of the 6RFU cabinet•FMUA supplying power to the FMUA•SPARE is reserved.

RFU0 to RFU5, FMUA, and SPARE

Power output port

-48 V RTN input wiring terminalRTN(+)

-48 V NEG input wiring terminalNEG(–)Wiring terminal for power input

DescriptionLabelName


RF Cabinet Modules --- DCDU-02 Board� 220 V and 110V AC Power Distribution


RF Cabinet Modules --- FAN Unit

� The FAN unit provides the functions of ventilation and heat dissipation for the cabinets. A FAN unit consists of two independent fans.

� Functions

� Providing forced ventilation and heat dissipation

� Supporting the temperature detection

� The FAN unit supports:

− Adjustment based on the temperature and adjustment controlled by the main control unit

− Fan rotation control function. The FAN unit stops the rotation of the fans when

the ambient temperature is low.


RF Cabinet Modules --- FMUA Board

� The FMUA module is a fan environment monitoring unit.

� Functions

� Leading -48 V DC power to the FAN unit

� Collecting environment alarms of the cabinet, such as temperature, humidity, smoke, water, and door status alarms

� Collecting surge protection alarms of the DCDU

� Supporting the functions of temperature detection and report

� Supporting cascaded and extension FMUA through the RS485 port


RF Cabinet Modules --- FMUA Board

� the LEDs on the FMUA.

No alarm is generated or there is no power supply.

OFF

Other alarms are generated. On for 2 second and off for 2 second

The fan in the left side of the cabinet generates alarms.

ON

The fan in the right of the cabinet generates alarms.

On for 1 second and off for 1 second

Alarms are generates on both the left and right fans of the cabinet.

On for 0.125 second and off for 0.125 second

RedALARM

There is no power supply. OFF

The power supply is normal but the communications with the BBU is not normal.

On for 0.125 second and off for 0.125 second

The module runs normally and communicates normally with the BBU.

On for 1 second and off for 1 second

GreenRUN

MeaningStatusColorIdentifier


RF Cabinet Modules --- FMUA Board� the ports on the FMUA module

Port for the water sensorDry contact connectorGroup four (from left to right)

Ports for the smoke sensor and door status sensor

Dry contact connectorGroup three (from left to right)

Dry contact connectorGroup two (from left to right)

Extension Boolean alarm portDry contact connectorGroup one (from left to right)Boolean alarm port

Connects to the FAN unit in the right of the cabinet through the power cable for the FAN unit.

4-pin connectorFAN2 and FAN -3

Connects to the FAN unit in the left of the cabinet through the power cable for the FAN unit.

4-pin connectorFAN0 and FAN -1Ports on the FAN unit

Connects the SPD ALM port of the DCDU through the monitoring signal cable between the FUMA and DCDU.

RJ45 connectorTEM_HUM ARRESTER

Indicates the port for monitoring cabinet temperature.

RJ45 connectorTEM

Cascades lower-level FMUA.RJ45 connectorCOM OUT

Connects to the main control unit.RJ45 connectorCOM INRS485 communication interface

-48 V DC power is supplied to the power port.

3V3 power connector–48 VPower port

DescriptionConnector TypePortPort Type


RF Cabinet Modules --- Batteries

� Batteries in the RF Cabinet

� The batteries in the RF cabinet provide NodeBs with power supplies.

� Batteries are configured in the 3 RFU RF cabinet.

� Appearance

� Batteries in the RF cabinet are classified into two types.

(2) -12 V 92 Ah battery(1) -12 V 50 Ah battery


Power Cabinet ModulesPower Cabinet Modules

� The components in the power cabinet are as follows: BBU, SLPU, PDU, PMU/PSU, AFMU, AFMI, and sensors.


Logical Structure of the BBU3900 Module

TO WRFU

Clock modeSignalingProcessing

Operation&Maintenance

Power mode

E1/T1FE

Transport Interface

TransmissionAdaptationProtocolProcessing

FP

Processing

Codling

Decoding Demodulation

Modulation

Interface

Module

Transport Subsystem Baseband Subsystem

Control Subsystem

External SubsystemOMC

CPRI

RNC

Power Control information


BBU3900 Module Introduction

� Mandatory boards and modules：WMPT, WBBPa, UBFA, and UPEU

� The optional boards are the UELP, UFLP, UTRP, and UEIU.

� Full configuration

� Typical configuration


BBU3900 Module Introduction

F

A

N

PWR0

PWR1

SLOT0

SLOT1

SLOT2

SLOT3

SLOT4

SLOT5

SLOT6

SLOT7

Slot number definition

Active and standby definition for UTRP and WMPT boards

F

A

N

PWR

PWR

WBBP

WBBP

WBBP

WBBP

UTRP

UTRP

WMPT

WMPT

Slot boards definition


BBU Module --- WMPT Board

� Board number：

� maximum is 2 for one BBU3900,mandatory board, working in active and standby mode

� Main Functions：

� Providing OM functions

� Controlling other boards in the system and providing the reference clock

� Providing USB ports for automatic NodeB upgraded

� Providing transmission port for Iub interface

� Providing OM channels

4E1: DB26

IP transmission on Electrical Port: RJ45

IP transmissionOptical signals: SFP

GPS antenna: SMA

Commissioning: RJ45

Loading Testing

LEDs



� LEDs of running status of WMPT:

The board is in standby mode.OFF

The board is in active mode.ONGreenACT

The board is operational.OFF

The board is reporting alarms and is faulty.ONRedALM

The software is being loaded to the board, or the board is not in use.

0.125s ON, 0.125s OFF

The board is running as configured.1s ON, 1s OFF

The board has no power input.OFF

The board has power input, yet the board is faulty.ONGreenRUN

DescriptionStatusColorLabel



There is no data transmission.OFF

There is ongoing data transmission.BlinkingYellow

The connections are faulty.OFF

The connections are functional.ONGreenLEDs beside the ETH port

There is no data transmission.OFF

There is ongoing data transmission.BlinkingYellow

The connections are faulty.OFF

The connections are functional.ONGreenLEDs beside the FE1 and FE0 optical port

DescriptionStatusColorLED



� DIP Switch : The WMPT has two DIP switches: SW1 for setting the E1/T1 working

mode and SW2 for setting the protection ground for the E1.

ONONOFF4

ONONOFF3

ONOFFON2

ONOFFON1

75-ohm E1 Unbalanced Mode

120-ohm E1 Balanced Mode

T1 ModeBit

Settings of SW1

ON4

ON3

ON2

The RRING is for connected to the protection ground.

ON1

Description75-ohm E1 Unbalanced Mode

Bit

Settings of SW2


BBU Module --- WBBPa Board

� Board number： mandatory, maximum is 6


� Providing the CPRI interface for communication between the BBU and the

WRRU or WRFU

� Processing uplink and downlink baseband signals and support HSUPA and

HSDPA function

� Supporting 1+1 backup of the CPRI interface

� According to the board processing capability, WBBP module will include seven

specifications. Current WBBP is the A version, called WBBPa.

CPRI 0 ~2 (1.25G-2.5G): SFP LEDs


BBU Module --- WBBPa Board� LED of running status of board :

The board is reporting alarms and is faulty.ON

The board is operational.OFFRedALM

The board is not in use.OFF

The board is operational.ONGreenACT

Software is being loaded to the board.0.125s ON

0.125s OFF

The board is operational.1s ON, 1s OFF

The board has no power input or is faulty.OFF



The associated CPRI link is operational.ONGreen

The associated CPRI link is out of lock.Blinking

The optical module or the electrical port is in position, yet the received signals are lost.

ON

The optical module is not in position, or the CPRI electrical cable is not securely connected.

OFFRedCPRI0-2


The module is reporting alarms.ONRed

The module is operational.1s ON, 1s OFF

The module is not registered, and no

alarm is reported.

0.125s ON,

0.125s OFF

GreenSTATE


UFAN Board

� Board number： mandatory, maximum is 1


� Controlling the fan speed

� Reporting the fan status to the WMPT

� Detecting the temperature of the fan board


� Panel of the UPEA � Panel of the UPEB

BBU Module --- UPEU Board

� Board number： mandatory, maximum is 2, 1+1 backup


� Converting -48 V or +24 V DC power input to +12 V DC power that is supported

by boards

� Reporting alarms related to input and output under voltage

� Providing transmission ports for RS485 signals and dry contact alarm signals

-48V to +12V +24V to +12V


� LED: The UPEU has one LED, indicating the running status of the board.

The board has no power input, or the board is faulty.

OFF

The board is operational.ONGreenRUN


� Socket and Port: The UPEU has one socket and four ports.

RJ451MON0

Transmitting RS485 environment monitoring signals

RJ451MON1

RJ451EXT-ALM0

Transmitting dry contact alarm signalsRJ451EXT-ALM1

DC power input3V31PWR

FunctionConnector TypeQuantityLabel

BBU Module --- UPEU Board


� The UTRP provides ports for eight E1s/T1s and implements transport such as IP and

ATM between the BBU3900 and the RNC.

The board is reporting alarms and is faulty.ON

The board is operational.OFFRedALM

The board is in standby mode.OFF

The board is in active mode.ONGreenACT

The board is under test.2s ON, 2s OFF

Software is being loaded to the board.0.125s ON, 0.125s OFF

The board is operational.1s ON, 1s OFF

The board has no power input or is faulty.OFF



BBU Module --- UTRP Board

4 E1:DB26


RJ45EXT-ALM1

RJ45EXT-ALM0

RJ45MON1

RJ45MON0

Connector TypeLabel

BBU Module --- UEIU Board

� Port : The UEIU has four ports.

� Board number: maximum is 2

� The UEIU Functions：

� Connecting to an external monitoring device and transmitting RS485

signals to the WMPT

� Connecting to an external alarm device and transmitting dry contact alarm

signals to the WMPT


BBU Module --- SLPU Board

� The auxiliary devices of the

BBU3900. The devices are

the SLPU, UELP, and UFLP

� SLPU: The signal lightning

protection unit is an optional

module of the BTS3900

cabinet (-48 V) or the power

distribution cabinet.

� The UFLP and the UELP

are optional units that are

installed in the SLPU.

UFLP

UELP


� UELP: The universal E1/T1 lightning protection (UELP) unit is a universal E1/T1 The UELP can be optionally installed in the SLPU or the BBU. Each UELP

supports the surge protection of 4-way E1/T1 signals.

� E1 Connection:

BBU Module --- UELP Board

DB25 DB26

Indoor DDF

E1

E1


� DIP Switch: The UELP has one DIP switch, which is used to select whether the

receive terminal is grounded. The DIP switch has four bits.

Used for other modes except the 75 Ω unbalanced mode

OFFOFFOFFOFF

Used for the 75 Ωunbalanced mode

ONONONONS1

4321

DescriptionDIP StatusDIP Switch

BBU Module --- UELP Board


� UFLP: The universal FE lightning protection (UFLP) board is optionally installed in the

SLPU or BBU. Each UFLP supports 2-way FE surge protection.

BBU Module --- UFLP Board

� IP Cable Connection.

Transmission EquipmentLAN switch or Router


Power Cabinet Modules --- APMI

� The APMI board refers to APM Power Monitor unit Interface board.

� Function

� Transfers the APM30 serial port communication signals, Boolean input/output signals, and EMI signals.

� Protects the dry contact input/output signals and RS485 signals (connected to the BBU/BTS)


Power Cabinet Modules --- APMI

Connecting the optical coupling alarm output cable

12-pin molex connectorOUT1

Connecting the dry contact alarm input cable32-pin molex connectorIN1-IN3

Connecting the monitoring signal cable between the APMI and the BBU

22-pin molex connectorTX+, TX-, RX+, RX-

Connecting the monitoring signal cable between the PMU and the APMI

1RJ45 connectorRS422

FunctionQuantityConnector TypePort


Power Cabinet Modules --- AFMU

� The AFMU board refers to APM Fan Monitor unit Interface Board.

� Function

�Provides DC power supply to

the APMI and AFMU boards through

the DC power port

�Supplies DC power to the two

fans at the top of the cabinet and reports the alarms of the fans

�Reports the alarms of the internal ambient temperature sensor, air inlet

temperature sensor, and air outlet temperature sensor

�The alarm signals of the AFMU board is transported to the APMI board through

the signal transfer cable and then is reported to the BBU


Power Cabinet Modules --- AFMU

Connecting the DC power cable of the AFMU

DC INPUT2

Connecting the monitoring signal cable between the AFMU and the APMI

ALM1

FunctionPortSN

No alarm is generated, or the system is not powered on.

OFF steady

An alarm is generated.ON steadyRedALMAlarm LED

The system is not powered on.OFF steady

The serial port communication is disrupted. The other communication is normal.

Blinking for 0.125s ON and 0.125s OFF

The system is working properly.Blinking for 1s ON and 1s OFF

About 1 minute after the AC or DC power-onON steadyGreenRUNOperation LED

DescriptionStatusColorSilkscreenLED


Power Cabinet Modules --- PDU

� The PDU (short for Power Distribution Unit) performs AC or DC power distribution.

DC output wiring terminals (LOAD0-LOAD9)8

DC output MCBs (SW0-SW9)7

AC output MCB (controls the power supply to the heating film or heaters)6

AC input MCB5

AC output wiring terminals (Nout1, Nout2)4

AC output wiring terminals (Lout1, Lout2)3

AC wiring terminals•For the 110 V dual-live-wire input, use L1•For the single-phase 220 V/three-phase 220 V input, use L1, L2 and L3

2

AC wiring terminals•For the 110 V dual-live-wire input, use L2•For the single-phase 220 V/three-phase 220 V input, use N1 and N2

1

DescriptionSN


220V AC Power Subrack --- PSU(AC/DC) Board

(3) Fault LED

(2) Protection LED

(1) Power running LED

220V AC Single Cabinet

� Function

� The power subrack consists of the PMU, PSU (AC/DC) and the wiring unit of the

power subrack (220 V). The power subrack (AC/DC) converts the 220 V AC

power to the -48 V DC power.


220V AC Power Subrack --- PSU(AC/DC) Board

There is no output because of output overvoltage shutdown, fan fault, overtemperature shutdown, remote shutdown, or internal problems of the PSU.

On

Normal, or the PSU has no output because of faults (such as no AC input, or overvoltage and undervoltage of AC input) on the mains.

OffRedFault LED

Temperature pre-alarm or fan pre-alarmOn

NormalOffYellowProtection LED

There are faults (such as no AC input, or overvoltage and undervoltage of AC input) on the mains, or the PSU has no output.

Off

NormalOnGreenPower running LED

MeaningStatusColorLED


220V AC Power Subrack --- PMU Board

� The power and environment monitoring unit (PMU) is the unit for monitoring the

power and the environment. The PMU provides perfect power system management,

power distribution detection, and alarm report functions.

(5) COM port

(4) Battery control switches

(3) RS232/RS422 port

(2) Power supply test ports

(1) LEDs

(2) DIP switch(1) Backplane port



No alarm is generated.Off

The following alarms are reported:

•Mains overvoltage or undervoltage alarm

•Busbar overvoltage or undervoltage alarm

•Power module alarm

•Load shutdown alarm

OnRedALM

The PMU is faulty (not in the power-on self-check state).On/Off

The module runs normally but the communication with the

main control unit fails.

If the PMU does not communicate with the main control unit

for one minute, the communication fails. In this situation, the

RUN LED blinks four times every second.

On for 0.125 second

and off for 0.125

second

The module is functional, and the communication with the

main control unit is normal.

On for 1 second and

off for 1 second

GreenRUN

MeaningStatusColorIdentifier



Connecting the backplaneBackplane port

Connecting the external signal transfer boardCOM port

Two power supply test holes -48 V and 0 V are available for measuring

power voltages through an ordinary multimeter.

Power supply test

port

The battery control switch has two control ports ON and OFF, which are

used for powering on and off the battery.

•Press and hold the port ON for 5s to 10s until the battery is powered on.

•Press and hold the port OFF for 5s to 10s until the battery is powered off.

CAUTION:

•You need to insert a small round bar into the hole when you operate the

battery control switch. When you hear a crack, the battery is powered on or

off.

•To operate the battery control switch on the front panel of the PMU, insert

a small round pole into the hole.

Battery control

switch

Communicating with the main control unitRS232/RS422 port

PurposePort



� DIP Switch: The DIP switch is located on the rear panel of the PMU. The DIP switch has eight bits, which are set to OFF before delivery.

11111111

11100111

11011011

11000011

10111101

10100101

10011001

10000001

01111110

01100110

01011010

01000010

00111100

00100100

00011000

00000000

Monitoring AddressBit 0Bit 1Bit 2Bit 3


BBU3900 Cable Connection


Cables --- PGND Cable

� PGND Cable

OT terminal

PGND terminal in the cabinet

PGND terminal at the front door of the cabinet

The cross-sectional area of a wire is 6 mm2.

Green and yellow

Front door PGND cable

PGND terminal on the right side of the cabinet

PGND terminal on the right side of the DCDU panel


Green and yellow

PGND cable of the DCDU

External grounding bar of the cabinet

PGND terminal on the right side of the cabinet


Green and yellow

PGND cable of the BTS3900 WCDMA cabinet

The Other End Is Connected to ...

One End Is Connected to ...Cross-Sectional AreaColorName


Cables --- Power Cable

� Power Cable Between the DCDU and the BBU


Cables --- Transmission Cable

E1 Cable

FE Surge Protection Transfer CableE1 Surge Protection Transfer Cable

FE Cable


Cables --- CPRI Cable

� This describes the CPRI electrical cable. It helps to implement high speed communication between the BBU3900 and the WRFU.

� Appearance : The CPRI electrical cable is an SFP high speed transmission

cable that has a SFP200 male connector at each end

CPR1_W port on the WRFUCPRI port on the WBBP

The Other EndOne End


Chapter 1 Fourth Generation NodeB OverviewChapter 1 Fourth Generation NodeB Overview


Chapter 3 BTS3900A Typical ConfigurationChapter 3 BTS3900A Typical Configuration


BTS3900A Typical Configuration

� The BTS3900A supports omni-directional, 2-sector, 3-sector, and 6-sector configurations. It also supports smooth capacity expansion from 1 x 1 to 3 x 8.

� This takes the WBBPa module that supports 3-sector and WRFU module that

supports 80 W/4 carrier as an example to describe the configurations of the

BTS3900A

www.huawei.com

Thank You

WCDMA BTS3900A Hardware Structure

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Transcript of WCDMA BTS3900A Hardware Structure