Internal
WCDMA BTS3900A Hardware Structure BTS3900AV200R010 www.huawei.com
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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.
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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
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“BTS3900A Product Description”
“BTS3900A Hardware Description”
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BTS3900A Abbreviations WMPT
WCDMA Main Processing and Transmission Unit
WBBPa
WCDMA Baseband Process unit Type A
WRFU
WCDMA Radio Filter Unit
UBFA
Universal BBU Fan Unit Type A (2U)
UEIU
Universal Environment Interface unit
UELP
Universal E1/T1 Lighting Protection unit
UFLP
Universal FE/GE Lighting Protection unit
UPEU
Universal Power and Environment Interface Unit
UTRP
Universal Transmission Processing Unit
DCDU-01
Direct Current Distribution Unit-01
CPRI
Common Protocol Radio Interface
PSU
The power supply unit
PMU
The power and environment monitoring unit
APM
Advanced power module
APMI
APM power monitor unit Interface board
AFMU
APM fan monitor unit Interface board
FMUA
fan environment monitoring unit
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NodeB Position in UMTS Network UTRAN
UE Uu
CN Iu Iu-CS
RNC Iub Iu-BC
CS
NodeB b Iu
Iu-PS
Iur PS
NodeB Iu-BC
Iub
NodeB
RNC CBC
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NodeB Location Uu Interface
UE
PSTN ISDN PSPDN
TUP,ISUP BTS3900A RNC IU Interface
UE
MSC/SGSN M
MAP
AP
BTS3900A
HLR/AUC/EIR
BTS3900A
SMC UE BTS3900A
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M2000
HUAWEI Confidential
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Chapter 1 NodeB Overview Chapter 2 BTS3900A Hardware Structure Chapter 3 BTS3900A Typical Configuration
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Chapter 3 BTS3900A Hardware Structure Section 1 BTS3900A Introduction Section 2 Power Modules Structure Section 3 Modules Structure Section 4 Cables
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BTS3900A Appearance
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Type
Parameters
Dimensions
600(W)*900(H)*450(D)
Weight under full configuration
≤ 160Kg
3*1 and 3*2 Weight
≤ 120Kg
-48V input range of voltage
-48V DC:-38.4V DC to -57V DC
+24V input range of voltage
+24 DC:+21.6 V DC to +29 V DC
220 AC input range of voltage
220 AC: Single-phase or threephase power cable
110 AC input range of voltage
220 AC: Single-phase or threephase power cable
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Typical Configurations of the BTS3900A Cabinet
1. RF cabinet
2. Power cabinet
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Typical Configurations of the BTS3900A Cabinet
1. RF cabinet
2. Power cabinet
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Typical Configurations of the BTS3900A Cabinet
The BTS3900A cabinet comprises an RF
cabinet and a power cabinet. The extension battery cabinet and transmission cabinet are optional.
1. RF cabinet 2. Power cabinet 3. Transmission cabinet 4. Battery cabinet HUAWEI TECHNOLOGIES CO., LTD.
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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
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BTS3900A Logical Structure
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Chapter 3 BTS3900A Hardware Structure Section 1 BTS3900A Introduction Section 2 Power Modules Structure Section 3 Modules Structure Section 4 Cables
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RF 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.
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RF Cabinet Modules --- WRFU Board
The WRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit.
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RF Module --- WRFU Board Type
Label
Connector Type
Description
Port for transceiving RF signals
ANT-RXD
N series female connector
Connecting the antenna subsystem
ANTTX/RXM
N series female connector
CPRI
CPRI_W
SFP female connector
Connecting the BBU, or the upper-level WRFU during the cascading
CPRI_E
SFP female connector
Connecting the lowerlevel WRFU during the cascading
LNA1-IN
QMA female connector
Input port of diversity signals in the antenna channel
LNA0-OUT
QMA female connector
Output port of diversity signals in the antenna channel
Power port
POWER
3V3 power connector
Introducing power
Commissioning port
COM
RJ45 connector
Used for commissioning
Interconnection port for RF receive signals
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RF Module --- WRFU Board Identifier
Status
Meaning
RUN
On
The power input is normal, but the module is faulty.
Off
There is no power input, or the module is faulty.
On for 1 second and off for 1 second
The module is functional.
On for 0.125 second and off for 0.125 second
The module is loading software or is not started.
On
The module is in the alarm status.
Off
No alarm is generated.
On
The module is functional and is connected to the BBU.
Off
The module is not connected to the BBU.
On for 1 second and off for 1 second
The module is in the local test status.
Off (red)
No VSWR alarm is generated.
On (red)
A VSWR alarm is generated.
On (green)
The CPRI link is normal.
On (red)
The interface module fails to receive signals.
Red LED on for 1 second and off for 1 second
The CPRI link is out of lock.
ALM
TX_ACT
VSWR
CPRI_W CPRI_E
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RF Module --- WRFU Board 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; Configuration Type (No Transmit Diversity)
Transmit Diversity Power (W)/Carrier
Typical Power Consumption (W)
Maximum Power Consumption (W)
3*1
80
520
630
3*2
40
610
830
3*4
20
1020
1330
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RF Cabinet Modules --- DCDU-02 Board The direct current distribution unit
(DCDU) module leads power to each component in the cabinet. Functions
DCDU-02 in the 3RFU cabinet or in the left of the 6RFU cabinet
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.
DCDU-02 in the 3RFU cabinet or in the right of the 6RFU 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.
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RF Cabinet Modules --- DCDU-02 Board Name
Label
Description
Wiring terminal for power input
NEG(–)
-48 V NEG input wiring terminal
RTN(+)
-48 V RTN input wiring terminal
Power output port
RFU0 to RFU5, FMUA, and SPARE
•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.
Power switch
RFU0 to RFU5, FMUA, and SPARE
•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
Alarm output port
SPD ALM
DUDU dry contact alarm output port
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RF Cabinet Modules --- DCDU-02 Board
220 V and 110V AC Power Distribution
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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.
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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
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RF Cabinet Modules --- FMUA Board
the LEDs on the FMUA.
Identifier
Color
Status
Meaning
RUN
Green
On for 1 second and off for 1 second
The module runs normally and communicates normally with the BBU.
On for 0.125 second and off for 0.125 second
The power supply is normal but the communications with the BBU is not normal.
OFF
There is no power supply.
On for 0.125 second and off for 0.125 second
Alarms are generates on both the left and right fans of the cabinet.
On for 1 second and off for 1 second
The fan in the right of the cabinet generates alarms.
ON
The fan in the left side of the cabinet generates alarms.
On for 2 second and off for 2 second
Other alarms are generated.
OFF
No alarm is generated or there is no power supply.
ALARM
Red
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RF Cabinet Modules --- FMUA Board
the ports on the FMUA module
Port Type
Port
Connector Type
Description
Power port
–48 V
3V3 power connector
-48 V DC power is supplied to the power port.
RS485 communication interface
COM IN
RJ45 connector
Connects to the main control unit.
COM OUT
RJ45 connector
Cascades lower-level FMUA.
TEM
RJ45 connector
Indicates the port for monitoring cabinet temperature.
TEM_HUM ARRESTER
RJ45 connector
Connects the SPD ALM port of the DCDU through the monitoring signal cable between the FUMA and DCDU.
FAN0 and FAN -1
4-pin connector
Connects to the FAN unit in the left of the cabinet through the power cable for the FAN unit.
FAN2 and FAN -3
4-pin connector
Connects to the FAN unit in the right of the cabinet through the power cable for the FAN unit.
Group one (from left to right)
Dry contact connector
Extension Boolean alarm port
Group two (from left to right)
Dry contact connector
Ports on the FAN unit
Boolean alarm port
Group three (from left to right) Dry contact connector
Ports for the smoke sensor and door status sensor
Group four (from left to right)
Port for the water sensor
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Dry contact connector
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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.
(1) -12 V 50 Ah battery
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(2) -12 V 92 Ah battery
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Chapter 3 BTS3900A Hardware Structure Section 1 BTS3900A Introduction Section 2 Power Modules Structure Section 3 Modules Structure Section 4 Cables
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Power Cabinet Modules
The components in the power cabinet are as follows: BBU, SLPU, PDU, PMU/PSU, AFMU, AFMI, and sensors.
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Logical Structure of the BBU3900 Module OMC
External Subsystem
Control Subsystem
Clock mode
Signaling Processing
Operation& Maintenance
Decoding Transmission Adaptation Protocol Processing
FP Processing
RNC
E1/T1 FE Transport Interface
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Demodulation Power Control information
Codling Transport Subsystem
Power mode
Modulation
Baseband Subsystem
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Interface CPRI Module
TO WRFU
BBU3900 Module Introduction Full configuration
Typical configuration
Mandatory boards and modules:WMPT, WBBPa, UBFA, and UPEU
The optional boards are the UELP, UFLP, UTRP, and UEIU.
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BBU3900 Module Introduction F
SLOT0
SLOT4
A
SLOT1
SLOT5
SLOT2
SLOT6
SLOT3
SLOT7
N
PWR0 PWR1
Slot number definition
Active and standby definition for UTRP and WMPT boards F
WBBP
UTRP
A
WBBP
UTRP
N
WBBP
WMPT
WBBP
WMPT
PWR
PWR
Slot boards definition HUAWEI TECHNOLOGIES CO., LTD.
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BBU Module --- WMPT Board IP transmission on Electrical Port: RJ45
Loading
Testing
GPS antenna: SMA
LEDs Commissioning: RJ45
IP transmission Optical signals: SFP
4E1: DB26
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 HUAWEI TECHNOLOGIES CO., LTD.
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BBU Module --- WMPT Board LEDs of running status of WMPT: Label
Color
Status
Description
RUN
Green
ON
The board has power input, yet the board is faulty.
OFF
The board has no power input.
1s ON, 1s OFF
The board is running as configured.
0.125s ON, 0.125s OFF
The software is being loaded to the board, or the board is not in use.
ON
The board is reporting alarms and is faulty.
OFF
The board is operational.
ON
The board is in active mode.
OFF
The board is in standby mode.
ALM
ACT
Red
Green
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BBU Module --- WMPT Board
LED
Color
Status
Description
LEDs beside the FE1 and FE0 optical port
Green
ON
The connections are functional.
OFF
The connections are faulty.
Blinking
There is ongoing data transmission.
OFF
There is no data transmission.
ON
The connections are functional.
OFF
The connections are faulty.
Blinking
There is ongoing data transmission.
OFF
There is no data transmission.
Yellow
LEDs beside the ETH port
Green Yellow
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BBU Module --- WMPT Board 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. Settings of SW1 Bit
T1 Mode
120-ohm E1 Balanced Mode
75-ohm E1 Unbalanced Mode
1
ON
OFF
ON
2
ON
OFF
ON
3
OFF
ON
ON
4
OFF
ON
ON
Settings of SW2
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Bit
75-ohm E1 Unbalanced Mode
Description
1
ON
2
ON
The RRING is for connected to the protection ground.
3
ON
4
ON
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BBU Module --- WBBPa Board CPRI 0 ~2 (1.25G-2.5G): SFP
LEDs
Board number: mandatory, maximum is 6 Main Functions:
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.
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BBU Module --- WBBPa Board LED of running status of board : Label
Color
Status
Description
RUN
Green
ON
The board has power input, yet the board is faulty.
OFF
The board has no power input or is faulty.
1s ON, 1s OFF
The board is operational.
0.125s ON
Software is being loaded to the board.
0.125s OFF ACT
ALM
CPRI0 -2
Green
Red
Red
Green
ON
The board is operational.
OFF
The board is not in use.
OFF
The board is operational.
ON
The board is reporting alarms and is faulty.
OFF
The optical module is not in position, or the CPRI electrical cable is not securely connected.
ON
The optical module or the electrical port is in position, yet the received signals are lost.
Blinking
The associated CPRI link is out of lock.
ON
The associated CPRI link is operational.
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UFAN Board
Board number: mandatory, maximum is 1 Main Functions:
Controlling the fan speed Reporting the fan status to the WMPT Detecting the temperature of the fan board Label
Color
Status
Description
STATE
Green
0.125s ON,
The module is not registered, and no
0.125s OFF
alarm is reported.
1s ON, 1s OFF
The module is operational.
ON
The module is reporting alarms.
Red
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BBU Module --- UPEU Board
Panel of the UPEA
Panel of the UPEB
+24V to +12V
-48V to +12V
Board number: mandatory, maximum is 2, 1+1 backup Main Functions:
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 HUAWEI TECHNOLOGIES CO., LTD.
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BBU Module --- UPEU Board LED: The UPEU has one LED, indicating the running status of the board.
Label
Color
Status
Description
RUN
Green
ON
The board is operational.
OFF
The board has no power input, or the board is faulty.
Socket and Port: The UPEU has one socket and four ports.
Label
Quantity
Connector Type
Function
PWR
1
3V3
DC power input
EXT-ALM1
1
RJ45
Transmitting dry contact alarm signals
EXT-ALM0
1
RJ45
MON1
1
RJ45
MON0
1
RJ45
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Transmitting RS485 environment monitoring signals
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BBU Module --- UTRP Board
The UTRP provides ports for eight E1s/T1s and implements transport such as IP and ATM between the BBU3900 and the RNC. 4 E1:DB26
Label
Color
Status
Description
RUN
Green
ON
The board has power input, yet the board is faulty.
OFF
The board has no power input or is faulty.
1s ON, 1s OFF
The board is operational.
0.125s ON, 0.125s OFF
Software is being loaded to the board.
2s ON, 2s OFF
The board is under test.
ON
The board is in active mode.
OFF
The board is in standby mode.
OFF
The board is operational.
ON
The board is reporting alarms and is faulty.
ACT
ALM
Green
Red
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BBU Module --- UEIU Board 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 Port : The UEIU has four ports.
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Label
Connector Type
MON0
RJ45
MON1
RJ45
EXT-ALM0
RJ45
EXT-ALM1
RJ45
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BBU Module --- SLPU Board UFLP The auxiliary devices of the
UELP
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.
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BBU Module --- UELP Board 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. DB26
DB25
E1 Connection: E1 E1
Indoor DDF
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BBU Module --- UELP Board 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.
DIP Switch S1
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DIP Status
Description
1
2
3
4
ON
ON
ON
ON
Used for the 75 Ω unbalanced mode
OFF
OFF
OFF
OFF
Used for other modes except the 75 Ω unbalanced mode
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BBU Module --- UFLP 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.
IP Cable Connection. Transmission Equipment LAN switch or Router
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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)
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Power Cabinet Modules --- APMI
Port
Connector Type
Quantity
Function
RS422
RJ45 connector
1
Connecting the monitoring signal cable between the PMU and the APMI
TX+, TX-, RX+, RX-
2-pin molex connector
2
Connecting the monitoring signal cable between the APMI and the BBU
IN1-IN3
2-pin molex connector
3
Connecting the dry contact alarm input cable
OUT1
2-pin molex connector
1
Connecting the optical coupling alarm output cable
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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
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Power Cabinet Modules --- AFMU
SN
Port
Function
1
ALM
Connecting the monitoring signal cable between the AFMU and the APMI
2
DC INPUT
Connecting the DC power cable of the AFMU
LED
Silkscreen
Color
Status
Description
Operation LED
RUN
Green
ON steady
About 1 minute after the AC or DC power-on
Blinking for 1s ON and 1s OFF
The system is working properly.
Blinking for 0.125s ON and 0.125s OFF
The serial port communication is disrupted. The other communication is normal.
OFF steady
The system is not powered on.
ON steady
An alarm is generated.
OFF steady
No alarm is generated, or the system is not powered on.
Alarm LED
ALM
Red
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Power Cabinet Modules --- PDU The
PDU (short for Power Distribution Unit) performs AC or DC power distribution.
SN
Description
1
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
2
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
3
AC output wiring terminals (Lout1, Lout2)
4
AC output wiring terminals (Nout1, Nout2)
5
AC input MCB
6
AC output MCB (controls the power supply to the heating film or heaters)
7
DC output MCBs (SW0-SW9)
8
DC output wiring terminals (LOAD0-LOAD9)
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220V AC Power Subrack --- PSU(AC/DC) Board 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.
(1) Power running LED (2) Protection LED (3) Fault LED 220V AC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.
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220V AC Power Subrack --- PSU(AC/DC) Board LED
Color
Status
Meaning
Power running LED
Green
On
Normal
Off
There are faults (such as no AC input, or overvoltage and undervoltage of AC input) on the mains, or the PSU has no output.
Protection LED
Yellow
Off
Normal
On
Temperature pre-alarm or fan pre-alarm
Off
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.
On
There is no output because of output overvoltage shutdown, fan fault, overtemperature shutdown, remote shutdown, or internal problems of the PSU.
Fault LED
Red
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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.
(1) LEDs
(2) Power supply test ports
(3) RS232/RS422 port
(4) Battery control switches
(1) Backplane port
(2) DIP switch
(5) COM port HUAWEI TECHNOLOGIES CO., LTD.
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220V AC Power Subrack --- PMU Board Identifier
Color
Status
Meaning
RUN
Green
On for 1 second and
The module is functional, and the communication with the
off for 1 second
main control unit is normal.
On for 0.125 second
The module runs normally but the communication with the
and off for 0.125
main control unit fails.
second
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.
ALM
Red
On/Off
The PMU is faulty (not in the power-on self-check state).
On
The following alarms are reported: •Mains overvoltage or undervoltage alarm •Busbar overvoltage or undervoltage alarm •Power module alarm •Load shutdown alarm
Off
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No alarm is generated.
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220V AC Power Subrack --- PMU Board Port
Purpose
RS232/RS422 port
Communicating with the main control unit
Battery control
The battery control switch has two control ports ON and OFF, which are
switch
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.
Power supply test
Two power supply test holes -48 V and 0 V are available for measuring
port
power voltages through an ordinary multimeter.
COM port
Connecting the external signal transfer board
Backplane port
Connecting the backplane
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220V AC Power Subrack --- PMU Board
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.
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Bit 3
Bit 2
Bit 1
Bit 0
Monitoring Address
0
0
0
0
0000
0
0
0
1
0001
0
0
1
0
0010
0
0
1
1
0011
0
1
0
0
0100
0
1
0
1
0101
0
1
1
0
0110
0
1
1
1
0111
1
0
0
0
1000
1
0
0
1
1001
1
0
1
0
1010
1
0
1
1
1011
1
1
0
0
1100
1
1
0
1
1101
1
1
1
0
1110
1
1
1
1
1111
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Chapter 3 BTS3900A Hardware Structure Section 1 BTS3900A Introduction Section 2 Power Modules Structure Section 3 Modules Structure Section 4 Cables
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BBU3900 Cable Connection
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Cables --- PGND Cable PGND Cable
OT terminal
Name
Color
Cross-Sectional Area
One End Is Connected to ...
The Other End Is Connected to ...
PGND cable of the BTS3900 WCDMA cabinet
Green and yellow
The cross-sectional area of a wire is 25 mm2.
PGND terminal on the right side of the cabinet
External grounding bar of the cabinet
PGND cable of the DCDU
Green and yellow
The cross-sectional area of a wire is 6 mm2.
PGND terminal on the right side of the DCDU panel
PGND terminal on the right side of the cabinet
Front door PGND cable
Green and yellow
The cross-sectional area of a wire is 6 mm2.
PGND terminal at the front door of the cabinet
PGND terminal in the cabinet
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Cables --- Power Cable Power Cable Between the DCDU and the BBU
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Cables --- Transmission Cable
E1 Cable
FE Cable
E1 Surge Protection Transfer Cable
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FE Surge Protection Transfer Cable
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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
One End
The Other End
CPRI port on the WBBP
CPR1_W port on the WRFU
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Chapter 1 Fourth Generation NodeB Overview Chapter 2 BTS3900A Hardware Structure Chapter 3 BTS3900A Typical Configuration
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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
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Page 68
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