BTS 3900 Family

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

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BTS3900 family

BTS3900 indoor

BTS3900A outdoor


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BTS3900 indoor





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BTS3900A Cabinet

The BTS3900A cabinet is designed in compliance

with the IEC297 standard. It is a vertical cabinet

and white in color.

Configuration Type

Width (mm)

Depth (mm)

Height (mm)

RF cabinet 600 480 700

APM30 power distribution cabinet

600 480 700

Cabinet base 600 480 200





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BBU Hardware Structure• The typical power consumption of the BBU is 35 W. • The weight of the BBU isn’t more than 10KG. • The BBU is a small box with all the external ports on the front

panel. • The BBU3900 boards consist of the BSBC, UEIU, GTMU, and

UELP; the BBU3900 modules consist of the UBFA and the UPEU.





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BBU Cable connection•The BBU3900 cables are classified into the PGND cable, -48VDC

power cable, E1/T1 cable, E1 transfer cable, environment monitoring

signal cable, CPRI signal cable between the BBU and the RRU, and

BBU monitoring signal cable.

•The cable connection relations of the BBU are as follows:





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BBU Board--GTMU

The GSM transmission, timing, and management unit for BBU

(GTMU)

controls and manages the entire BTS. It provides interfaces related to

the reference clock, power supply, OM, and external alarm collection. The GTMU performs the following functions:Controls, maintains, and operates the BTS.Supports fault management, configuration management, performance management, and security management.Supports the monitoring of the fan module and power supply module.Distributes and manages BTS3900 clock signals.Provides clock input for testing.Provides port for terminal maintenance.Supports four E1 inputs.Provides CPRI ports for communication with the RF modules .





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BBU Board--GTMU•Ports on the Panel

Port Type Description

CPRI0–CPRI5

SFP connector Provides the input and output of optical and electrical transmission signals

ETH RJ45 connector Local maintenance and commissioning

FE0 RJ45 connector A reserved port that performs the following function:

Connects the BBU to a routing device in the equipment room through the Ethernet cable to transmit network information

FE1 DLC connector A reserved port that performs the following function:

Connects the BBU to a routing device in the equipment room through the optical cable to transmit network information

USB USB connector A reserved port that performs the following function:

Automatically upgrades the software through the USB disk

TST USB connector Testing of the output clock signals by using a tester

E1/T1 DB26 male connector

Provides the input and output of the four E1/T1 signals between the GTMU and the UELP or between the GTMU and the BSC.





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BBU Board--UELP•The universal E1/T1 lightning protection unit (UELP) provides lightning

protection for four E1/T1 signals.





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Ports on the panel of the GRFU Size ： 397.25mm （ h ） ×70.62mm （ w ） ×305mm （ d ） Weight ： 10Kg

Ports on the panel

Port Type Label Connector Type Description

Port for

transceiving

RF signals

ANT_RXB DIN connector Connecting to the antenna subsystem.

ANT_TX/RXA

CPRI CPRI0 SFP female connector

Connecting to the BBU, or the upper-level RFU during the cascading.

CPRI1 Connecting to the lower-level RFU during the cascading.

Interconnection port for RF

Receive signals

RX_INB QMA female

connector

Input port of diversity signals in the

antenna channel.

RX_OUTA Output port of diversity signals in the

antenna channel.

Power supply port PWR 3V3 power connector

Feeding power.

Monitoring port MON RJ45 connector RS485 Monitoring 、 debugging port.





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Ports on the panel of the GRFU Compare ports on the panel of GRFU with that of DRFU

Port Type GRFU Relative position

DRFU Relative position

Port for

transceiving

RF signals

ANT_TX/RXA

lower ANT1 upper

ANT_RXB upper ANT2 lower

CPRI CPRI0 lower CPRI0 upper

CPRI1 upper CPRI1 lower

Interconnection

port for RF

Receive signals

RX_INB upper Rx_1 in

Rx_1 out

RX_OUTA lower Rx_2 in

Rx_2 out

Monitoring port

MON existence nonexistence

——





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GRFU & DRFU





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APM30 Battery Cabinet Hardware Component

The battery cabinet consists of : Batteries in the APM30 Battery Cabinet Door Status SensorHeating film





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PDU Module•The PDU (short for Power Distribution Unit) performs AC or DC power

distribution.

•The AC distribution functions of the PDU are as follows:Supplies two AC power outputs with the maximum current of 10 A to the heaters

of the power cabinet and the heating film of the battery cabinet.

Reports the surge protection alarms of the AC input power .

•The DC distribution functions of the PDU are as follows:

Provides 10 DC power outputs to meet the DC power requirements of t

he distributed base station or the separated base station

Reports the surge protection alarms of the DC output power





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Batteries in the APM30 Battery CabinetThe battery cabinet supports two types of batteries, the -48 V 50 AH

and the -48 V 100 AH. The batteries can be grouped into the following

combinations:When the -48 V 50 AH batteries are configured, they can be expanded to -48 V

100 AH through connecting the upper and the lower battery groups in parallel. When the -48 V 92 AH batteries are configured,

they can be expanded to -48 V 184 AH through

connecting the upper and the lower battery groups

in parallel.





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Door Status SensorThe APM30 power cabinet, APM30 battery cabinet, and APM30 transmission cabinet use the same type of door status sensor.





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Appearance and Panel of the EMUA





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Transmission Interface Box

420 mm (L) × 378 mm (W) × 125 mm (H).





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Internal Structure of Power Interface Box The 110 V AC power interface box and the 220 V AC power interface box

have the same components, but they are different in MCB specifications.

420 mm x 378 mm x 125 mm





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Internal DDFTwisted Pair DDF

The twisted pair DDF provides the access for eight twisted pair E1s. It is 1 U in height and does not provide the lightning protection function.





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Battery•The power cabinet can house 1 to 3 groups of -48 V 12 AH

batteries, which can form the -48 V 12 AH battery group system, the -48 V 24 AH system, or the -48 V 36 AH system. The details are as follows:

The -48 V 12 AH or -48 V 24 AH battery group is installed in the 3 U space at the bottom, and the remaining 5 U space can be used to install the user devices.

The -48 V 36 AH battery group is installed

in the 6 U space at the bottom, and the

remaining 2 U space can be used to install

the user devices.





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Sensors• Door Status Sensor

The door status sensor is made up of two parts, the magnet part and the switch part.





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Sensors• Temperature Sensor

The temperature sensors of the APM30 consist of the air inlet temperature sensor, internal ambient temperature sensor, and the air outlet temperature sensor.

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BTS 3900 Family