2008-03 www.huawei.com HUAWEI Confidential Security Level: Internal Use HUAWEI GSM DBS3900 Hardware Structure
2008-03
www.huawei.com
HUAWEI Confidential
Security Level: Internal Use
HUAWEI GSM DBS3900 Hardware Structure
HUAWEI TECHNOLOGIES Co., Ltd. Page 2HUAWEI Confidential
DBS3900 is a distributed BTS solution developed by Huawei
Technologies Co.,Ltd. Its baseband part and radio part can be
installed independently so that it can be used to various
environments with wide coverage and low cost.
HUAWEI TECHNOLOGIES Co., Ltd. Page 3HUAWEI Confidential
Know the functions and features of DBS3900
Master the Hardware structure and function of DBS3900
Familiar with the Typical configuration and cable
connection of DBS3900
Master the Network topologies of DBS3900
HUAWEI TECHNOLOGIES Co., Ltd. Page 4HUAWEI Confidential
Chapter 1 DBS3900 Hardware StructureChapter 1 DBS3900 Hardware Structure
Chapter 2 DBS3900 Typical Configuration
HUAWEI TECHNOLOGIES Co., Ltd. Page 5HUAWEI Confidential
Abbreviation
RRU Remote Radio unit
BBU Base Band unit
GTMU Transmission& Timing& Management Unit for BBU
UPEAUniversal power and Environment interface unitType A (-48v)
BSBC Universal BBU Subrack Backplane Type C (2U)
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
CPRI Common Protocol Radio Interface
APM Advanced Power Module
IBBS Integrated Backup Battery System
OFB Outdoor Facility Box
HUAWEI TECHNOLOGIES Co., Ltd. Page 6HUAWEI Confidential
Sector 1 DBS3900Sector 1 DBS3900 Hardware ComponentsHardware Components
Sector 2 BBU3900 System Structure
Sector 3 RRU3004 System Structure
Sector 4 DBS3900 Typical Scenario
HUAWEI TECHNOLOGIES Co., Ltd. Page 7HUAWEI Confidential
DBS3900
The DBS3900 consists of the BBU3900 and the RRU3004.
The BBU3900 is an indoor baseband unit. It provides physical interfaces for
connection with the BSC and RRU. It performs centralized management (OM
and signaling processing) of the entire base station system and provides
reference clock for the system.
The RRU3004 is an outdoor remote RF unit. It processes baseband signals
and RF signals.
The Local Maintenance Terminal (LMT) and Man-Machine Interactive (MMI)
can implement the maintenance of the DBS3900 through the BBU3900.
BBU3900
RRU3004 RRU3004 RRU3004
HUAWEI TECHNOLOGIES Co., Ltd. Page 8HUAWEI Confidential
APM30 Overview
The APM30 provides –48 V DC power
and power backup for the distributed
base stations and mini base stations,
and provides space for the user
equipment. It also performs functions
such as battery management and
monitoring, and lightning protection.
1. Filler panel(1U)2. Power sub-rack (3 U)3. DC PDU(2U)4~8. Filler Panel(1U)9. Space for batteries (3U)
HUAWEI TECHNOLOGIES Co., Ltd. Page 9HUAWEI Confidential
OFB Overview
OFB (Outdoor Facility Box)
supports DC power input
and DC power distribution
and can serve as a cabinet
for the transmission
equipment, provides 11U
installation space.
Since it has no heating
system, the OFB is unable
to adapt to low-temperature
environment. The OFB is
applicable to category C
environment.
HUAWEI TECHNOLOGIES Co., Ltd. Page 10HUAWEI Confidential
IBBS Overview
As an auxiliary product for Huawei outdoor BTSs, the
Integrated Backup Battery System (IBBS) provides
backup power to meet the requirements for fast network
deployment. Output: -48V DC. Backup power mode: serial or parallel connection
between batteries. Operating temperature: The IBBS cabinet is functioning
normally when the temperature is +55°C. Alarm system: It provide door control, smog and
temperature sensors. A maximum of 16 batteries of 12 V 100 Ah or 2 V 150
Ah, four batteries in one group and four groups in the
IBBS cabinet.
HUAWEI TECHNOLOGIES Co., Ltd. Page 11HUAWEI Confidential
Sector 1 DBS3900 Hardware Components
Sector 2 BBU3900 System StructureSector 2 BBU3900 System Structure
Sector 3 RRU3004 System Structure
Sector 4 DBS3900 Typical Scenario
HUAWEI TECHNOLOGIES Co., Ltd. Page 12HUAWEI Confidential
BBU3900
The BBU3900 is an indoor BTS control unit that enables interaction
between the BTS and the BSC.
The BBU3900 performs the following functions: Provides physical interfaces between the BTS and the BSC for
interaction.
Provides CPRI ports for communication with the RRU3004.
Provides the USB port for downloading the BTS software.
Provides OM channels for connection to the LMT (or M2000).
Processes UL and DL data.
Provides centralized management on the entire DBS system, such as
OM and signaling processing.
Provides the reference clock for the entire system.
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Logical Structure of the BBU3900
HUAWEI TECHNOLOGIES Co., Ltd. Page 14HUAWEI Confidential
Hardware Components of BBU3900
The typical power consumption of the BBU is 35 W.
The weight of the BBU isn’t more than 12KG.
Each BBU3900 supports a maximum of 36 TRXs, and 12 cells.
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.
HUAWEI TECHNOLOGIES Co., Ltd. Page 15HUAWEI Confidential
BSBC Board
The BSBC is the backplane of the BBU. The BSBC provides eight
board slots, two power slots, and one fan slot.
The universal BBU sub-rack backplane type C (2U) (BSBC) provides
backplane interfaces for communication between boards and supplies
power for boards.
The GTMU is located in slots 5 and 6, slot 7 for a main control board
that supports 3G, and other ports as common slots.
HUAWEI TECHNOLOGIES Co., Ltd. Page 16HUAWEI Confidential
GTMU Board
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 Monitors the fan module and the power supply module Distributes and manages BTS clock signals Provides clock input for testing Provides the Ethernet port for terminal maintenance Supports four E1 inputs Provides the CPRI ports for communication with the RRU
HUAWEI TECHNOLOGIES Co., Ltd. Page 17HUAWEI Confidential
GTMU Board
Ports on the GTMU Panel
Port Type Cable Description
CPRI0–CPRI5
DLC connector
CPRI optical cable between the BBU and the RRU
Provides the input and output of the optical signals
ETH RJ45 connector
Crossover cable (delivered with the equipment)
Performs 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
- Tests the output clock signals with a tester
E1/T1 DB26 male connector
E1/T1 cable of the BBU
Provides the input and output of the four E1/T1 signals between the GTMU and the UELP or between the GTMU and the BSC
HUAWEI TECHNOLOGIES Co., Ltd. Page 18HUAWEI Confidential
GTMU Board
LEDs on the GTMU Panel
LED Color Status Description
RUN Green On The board is faulty.
Off There is no power supply or the board is faulty.
Blinking once/2s The board is operational.
Blinking once/4s The OML link is abnormal.
Blinking four times/s
The board is loading software.
ALM Red On A fault occurs in the running board.
Off An alarm is not generated.
ACT Green On The board is operational.
Off The board is faulty.
LIU0–LIU3 Green On A local E1/T1 alarm is generated.
Blinking four times/s
A remote E1/T1 alarm is generated.
Off This link is not used or the alarm is cleared.
CPRI0-CPRI5 Green On The CPRI link is functional.
Red On The reception of the optical module is abnormal and an alarm is triggered.
HUAWEI TECHNOLOGIES Co., Ltd. Page 19HUAWEI Confidential
GTMU Board DIP Switch of GTMU
DIP switch
DIP status Description
1 2
SW1 ON ON The E1 impedance is set to 75 Ω.
OFF ON The E1 impedance is set to 120 Ω.
ON OFF The T1 impedance is set to 100 Ω.
DIP switch
DIP status Description
1 2 3 4
SW2 ON ON ON ON The E1 cable is grounded.
OFF OFF OFF OFF The E1 cable is not grounded.
DIP switch
DIP status Description
1 2 3 4
SW4 ON ON ON ON The E1 link can be bypassed.
OFF OFF OFF OFF The E1 link cannot be bypassed.
SW5 ON ON ON ON The E1 link cannot be bypassed.
OFF ON ON OFF The E1 link of the Level 1 cascaded BTS can be bypassed.
ON OFF ON OFF The E1 link of the Level 2 cascaded BTS can be bypassed.
OFF OFF ON OFF The E1 link of the Level 3 cascaded BTS can be bypassed.
ON ON OFF OFF The E1 link of the Level 4 cascaded BTS can be bypassed.
OFF ON OFF OFF The E1 link of the Level 5 cascaded BTS can be bypassed.
HUAWEI TECHNOLOGIES Co., Ltd. Page 20HUAWEI Confidential
UBFA Module
The universal BBU fan unit type A (2U) (UBFA) communicates with the
GTMU to regulate the temperature, adjust the fan speed, and report
alarms. The UBFA module is hot swappable.
LED Color Status Description
STATE Green Blinking twice per second
The board is not securely connected. An alarm is not generated.
Red On An alarm is generated.
Green Blinking once every two seconds
The board operates normally.
HUAWEI TECHNOLOGIES Co., Ltd. Page 21HUAWEI Confidential
UPEU Module
The universal power and environment interface unit type A (–48 V) (UPEU)
supports the –48 V DC power input, supplies power to the boards, modules, and
fan in the BBU, and provides access to multiple environment monitoring signals.
Port Type Description
MON0 RJ45Connector
Provides the input and output of the externally collected environment monitoring signals to the GTMU according to the RS485 communications protocol
MON1 RJ45Connector
Reserved
EXT-ALM0
RJ45Connector
Transmits the externally collected environment monitoring signals to the GTMU through communications protocol related to the dry contact
EXT-ALM1
RJ45Connector
Reserved
PWR 3V3PowerConnector
–48V power input
HUAWEI TECHNOLOGIES Co., Ltd. Page 22HUAWEI Confidential
UEIU Board
The universal environment interface unit (UEIU) supports multiple
environment monitoring signals. The UEIU supports eight Boolean
alarm signals and two RS485 environment monitoring signals.
The UEIU is optional. It is configured when the environment interfaces
are insufficient. Port Type Description
MON0 RJ45Connector
Provides the input and output of the externally collected environment monitoring signals to the GTMU according to the RS485 communications protocol
MON1 RJ45Connector
Reserved
EXT-ALM0
RJ45Connector
Transmits the externally collected environment monitoring signals to the GTMU through communications protocol related to the dry contact
EXT-ALM1
RJ45Connector
Reserved
HUAWEI TECHNOLOGIES Co., Ltd. Page 23HUAWEI Confidential
UELP Board
The universal E1/T1 lightning protection unit (UELP) provides lightning
protection for four E1/T1 signals.
Port Type Cable Description
INSIDE DB25 male connector E1 transfer cable of the BBU
Transfers the four E1/T1 signals between the UELP and the GTMU
OUTSIDE DB26male connector E1/T1 cables of the BBU
Provides the input and output of the four E1/T1 signals between the BBU and the BSC
DIP Switch DIP Status Description
1 2 3 4
SW1 OFF OFF OFF OFF Twisted-pair cable ( 100Ω T1 or 120Ω E1)
ON OFF ON OFF Coaxial cable ( 75Ω E1)
UELP Board provides a DIP switch to set impedance of E1/T1.
HUAWEI TECHNOLOGIES Co., Ltd. Page 24HUAWEI Confidential
BBU Cables
The BBU3900 cables are classified into the PGND cable, –48 V DC
power cable, E1/T1 cable, E1 transfer cable, RS485 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 as following:
HUAWEI TECHNOLOGIES Co., Ltd. Page 25HUAWEI Confidential
BBU Cables
The cables figure of the BBU
-48VDC power cables E1 transfer cable
FE cable CPRI optical cable
HUAWEI TECHNOLOGIES Co., Ltd. Page 26HUAWEI Confidential
BBU Cables
The cables figure of the BBU
(1)RJ45Connector
(2) Cord end terminal
Monitoring signal cable between the OFB and the BBU
Monitoring signal cable between the APM and the BBU
(1)RJ45Connector
(2) Cord end terminal
(3)OTConnector
(4)Common 3PINConnector
HUAWEI TECHNOLOGIES Co., Ltd. Page 27HUAWEI Confidential
Sector 1 DBS3900 Hardware Components
Sector 2 BBU3900 System Structure
Sector 3 RRU3004 System StructureSector 3 RRU3004 System Structure
Sector 4 DBS3900 Typical Scenario
HUAWEI TECHNOLOGIES Co., Ltd. Page 28HUAWEI Confidential
RRU3004
The RRU3004 is an outdoor remote RF unit.
The functions of the RRU3004 are as follows: The direct IQ modulation technique, which is directly implemented in the transmit
channel, modulates the baseband signals into GSM RF signals. After being filtered
and amplified, the RF signals are transmitted to the antenna for transmission,
through the duplexer in the RF front-end unit.
The uplink RF signals received from the antenna go through down-conversion,
amplification, analog-to-digital conversion, matched filtering, Automatic Gain
Control (AGC), and then are sent to ASIC and DSP for demodulation and
decoding.
Power regulation and Voltage Standing Wave Ration (VSWR) detection.
Frequency synthesization and loopback test.
Generation and recovery of the clock circuitry at the CPRI interface, and the alarm
detection.
HUAWEI TECHNOLOGIES Co., Ltd. Page 29HUAWEI Confidential
Logical Structure of the RRU
RXM_OUT:RRU RX main output for RRU cascading
RXD_IN:RRU RX diversity input for RRU cascading
HUAWEI TECHNOLOGIES Co., Ltd. Page 30HUAWEI Confidential
Components of the RRU3004
An RRU3004 consists of two RRU modules.
The RRU module has a modular structure. The external interfaces of the RRU
module are located at the bottom of the module and in the cabling cavity.
The weight of RRU3004 is 38Kg. The RRU3004 can be installed on a wall,
stand, metal pole, or tower.
HUAWEI TECHNOLOGIES Co., Ltd. Page 31HUAWEI Confidential
RRU Module
The RRU module has a bottom panel, a cabling cavity panel, and an
area attached with LEDs.
Provides - 48VDC power supply.
1 Bottom panel
2 Cabling cavity panel
3 LEDs
HUAWEI TECHNOLOGIES Co., Ltd. Page 32HUAWEI Confidential
RRU Module
Ports of the RRU Module
Item Label Description
Bottom panel RX_IN/OUT Interconnection ports for RF signals
RET RET antenna port
ANT_TX/RXA RF TX/RX port A
ANT_TX/RXB RF TX/RX port B
Cabling cavity panel
RTN+ Power wire post
NEG-
TX RX CPRI_E Eastern optical port
TX RX CPRI_W Western optical port
EXT_ALM Alarm Port
RST Hardware reset button
TST VSWR Test button for VSWR alarms
TST CPRI Test button for the CPRI port
HUAWEI TECHNOLOGIES Co., Ltd. Page 33HUAWEI Confidential
RRU Module LEDs on the RRU Module
LED Status Meaning
RUN On The board is faulty.
Off No power input is available.
Blinking once every two seconds The board is operational.
ALM On (blinking at high frequency) There is a fault related to the running board.
Off No alarm is detected.
ACT On Normal operation
Off The connection with the BBU is not established.
Blinking once every two seconds Only one logical transceiver is functional (including TRX mutual aid is implemented).
Blinking twice per second Local test status
VSWR TX_ACT On (green) No VSWR alarm is detected.
Blinking once every two seconds (green) The board is operational.
Blinking once every two seconds (red) A VSWR alarm is detected at the ANT_TX/RXA port.
Blinking once per second (red) A VSWR alarm is detected at the ANT_TX/RXB port.
On (red) A VSWR alarm is detected at the ANT_TX/RXA and ANT_TX/RXB ports.
OPTW/E(westward/eastward CPRI LED )
On (green) The CPRI link is functional.
On (red) The reception of the optical module is abnormal and an alarm is triggered.
Blinking once every two seconds (red) The CPRI link is out of lock.
Off The SFP module is out-of-position or the optical module is powered off.
HUAWEI TECHNOLOGIES Co., Ltd. Page 34HUAWEI Confidential
Connections of RRU Cables
The RRU3004 has the following cables: PGND cable, power cable,
AISG multi-wire cable, AISG extension cable, CPRI optical cable, RF
jumpers, Boolean input cable, and cables for cascaded RRUs.
HUAWEI TECHNOLOGIES Co., Ltd. Page 35HUAWEI Confidential
Connections of RRU Cables
The related cable’s figure of the RRU
RRU –48 V DC power cable RRU Power cable for cascaded RRU modules
Signal cable between the electrical ports on cascaded RRU modules
CPRI optical cable
HUAWEI TECHNOLOGIES Co., Ltd. Page 36HUAWEI Confidential
Connections of RRU Cables
The related cable’s figure of the RRU
Cascaded RF jumper Boolean input cable
AISG multi-wire cable AISG extension cable
HUAWEI TECHNOLOGIES Co., Ltd. Page 37HUAWEI Confidential
Sector 1 DBS3900 Hardware Components
Sector 2 BBU3900 System Structure
Sector 3 RRU3004 System Structure
Sector 4 DBS3900 Typical ScenarioSector 4 DBS3900 Typical Scenario
HUAWEI TECHNOLOGIES Co., Ltd. Page 38HUAWEI Confidential
Typical Scenarios of the DBS3900
Scenario 1: BBU+RRU+APM+IBBS When the site provides only the AC power supply and a long-time backup power
supply is required, the installation scenario can be used. The BBU can be installed in the APM. The APM supplies -48 V DC power to the BBU and
RRU.
The IBBS can supply backup power to the BTS for a long time to ensure that the BTS still
operates normally in the case of an AC power supply failure.
The RRU can be installed on a stand, pole, wall, or tower.
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Typical Scenarios of the DBS3900
Scenario 2: BBU+RRU+APM+OFB When the site provides the AC power supply and the space in the APM is
insufficient, the installation scenario can be used. The OFB provides 5 U to 11 U transmission space in which transmission equipment or
batteries can be installed. The BBU can be configured in the APM. The APM supplies –48 V DC power to the BBU
and RRU and also provides backup DC power.
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Typical Scenarios of the DBS3900
Scenario 3: BBU+RRU+OFB When there is no equipment room on site, the DC power supply is available, and the
backup power supply is not required, the installation scenario can be used. The BBU is installed in the OFB. The OFB supplies –48 V DC power to the BBU and RRU.
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Chapter 1 DBS3900 Hardware Structure
Chapter 2 DBS3900 Typical ConfigurationChapter 2 DBS3900 Typical Configuration
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Typical Configuration 1
S1(Transmit Diversity or Transmit
Independency + Receive Mode Main
and Diversity ) Transmit mode should be set to
“Transmit Independency or combining”
Receive mode should be set to “Receive
diversity”.
Antenna mode should be set to” Double
Antenna”.
It also can be configured as non-ring.
The maximum transmit power of RF port:
M900: 30W/TRX
M1800:20W/TRX.BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
HUAWEI TECHNOLOGIES Co., Ltd. Page 43HUAWEI Confidential
Typical Configuration 2
S1(Transmit Diversity + Receive Mode
Main and Diversity ) Transmit mode should be set to“Transmit
diversity”.
Receive mode should be set to“Receive
diversity”.
Antenna mode should be set to “Double
antenna”.
It also can be configured as non-ring.
The maximum transmit power of RF port:
M900: 20W/TRX
M1800:15W/TRX
BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
HUAWEI TECHNOLOGIES Co., Ltd. Page 44HUAWEI Confidential
Typical Configuration 3
S1(PBT + Receive Mode Main and
Diversity ) Transmit mode should be set to “PBT”.
Receive mode should be set to “Receive
diversity”.
Antenna mode should be set to “Double
antenna”.
It also can be configured as non-ring.
The maximum transmit power of RF port:
M900: 40W/TRX
M1800:30W/TRX
BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
HUAWEI TECHNOLOGIES Co., Ltd. Page 45HUAWEI Confidential
Typical Configuration 4
S2(Transmit Independency or
Combining + Receive Mode Main and
Diversity) Transmit mode should be set to “Transmit
mode independency or combining”.
Receive mode should be set to “Receive
diversity”.
Antenna mode should be set to “Double
antenna”.
It also can be configured as non-ring.
The maximum transmit power of RF port:
M900: 30W/TRX
M1800:20W/TRXBBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
HUAWEI TECHNOLOGIES Co., Ltd. Page 46HUAWEI Confidential
Typical Configuration 5
S2 (PBT + Receive Mode Main
and Diversity) Transmit mode should be set to
“PBT”.
Receive mode should be set to
“Receive diversity”.
Antenna mode should be set to
“Single antenna and receive
diversity”.
The maximum transmit power of
RF port:
M900: 40W/TRX
M1800:30W/TRX
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
HUAWEI TECHNOLOGIES Co., Ltd. Page 47HUAWEI Confidential
Typical Configuration 6
S2 (PBT + Four Way Receive
Diversity) Transmit mode should be set to
“PBT”. Receive mode should be set to “4
way receive diversity”. Antenna mode should be set to
“double antenna and 4 way receive
diversity”. It also can be configured as non-
ring. The maximum transmit power of
RF port:
M900: 40W/TRX
M1800:30W/TRX
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
HUAWEI TECHNOLOGIES Co., Ltd. Page 48HUAWEI Confidential
Typical Configuration 7
S4 (Transmit Combining +
Receive Mode Main and
Diversity) Transmit mode should be set to
“Transmit combining or
independency” Receive mode should be set to
“Receive diversity” Antenna mode should be set to
“Single antenna and two receive” The maximum transmit power of
RF port:
M900: 15W/TRX
M1800:10W/TRX
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
ANT
BBU
CPRI5CPRI0 CPRI1
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
HUAWEI TECHNOLOGIES Co., Ltd. Page 49HUAWEI Confidential
Typical Configuration 8
S8(Transmit Combining + Receive
Mode Main and Diversity) Transmit mode should be set to
“Transmit combining or
independency”. Receive mode should be set to
“Receive diversity”. Antenna mode should be set to
“Single antenna and two receive”. Actually It is combined by two S4. The maximum transmit power of RF
port:
M900: 15W/TRX
M1800:10W/TRX
ANT-TX/RXA
CPRI5
CPRI0
CPRI1
ANT
BBU
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
RRU
CPRI_E
CPRI_W
RX-in/out
ANT-TX/RXB
ANT-TX/RXA
Thank You
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