bts_3900_family_[1]
TRANSCRIPT
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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www.huawei.com
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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