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describe the process of the interconnection card of DBS3900
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Internal
WCDMA DBS3900 System
Hardware Structure
DBS3900V200R011
WRAN Training Team
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DBS3900 is new generation distribution
NodeB which is produced by Huawei Co.
Ltd.
In this course, well mainly learn the
hardware system structure, application
scenarios, basic functions of modules and
networking and configuration of the DBS3900
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Upon completion of this course, you will be able to:
Know application scenarios of DBS3900
Master the hardware structure of DBS3900
Master the functions of different modules
Master the cables connection rules of DBS3900
Know networking and configuration examples
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DBS3900 System Description
DBS3900 Hardware Description
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DBS3900 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 unitUPEU Universal Power and Environment Interface Unit
UTRP Universal Transmission Processing Unit
RCU Remote Control Unit
CPRI Common Protocol Radio Interface
AISG Antenna Interface Standard Group
TMA Tower Mounted Amplifier
SRXU Slim Receive Unit
APM Advanced Power Module
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Chapter1 General Description
Chapter2 Hardware Introduction
Chapter3 Networking and Configuration
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DBS3900 Overview
DBS3900 is a distributed NodeB of forth generation NodeB.
DBS3900 system consists of:
BBU3900
RRU3804 or RRU3801E
Antenna and feeder system
RNC
-48V DC
power Power cable
Power cable
Trunk cable Fiber or CPRI high-speedsignal cable
RRU
3804 or 3801E
BBU3900
Grounding cable
-48V/ 24VDC power Grounding cable
Antenna
TMA
RF jumper
Feeder
RF jumper
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BBU3900 in a Standard 19-Inch Cabinet
Application scenario 1
Launch 3G services on the basis of a 2G site
Benefit of this Application Scenario:
Can reside in any standard 19-inch-wide and 2-U-high cabinet
Can be installed on the metal pole and close to the antenna
The BBU3900 and RRU can share the power supply and antenna systems of the 2G network
Enables operators to launch 3G services on the existent 2G network at a very low cost
2G BTS RF Cable
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DBS3900 Integrated Application
Launch a new 3G
outdoor site without an
equipment room
VDF Spain: RRU on Tower
Shelter Air-conditioner
Application scenario 2
BBU3900+RRU+APM
BBU
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BBU3900 in a Indoor Cabinet
Application scenario 3:
Launch a new 3G indoor site, there is an equipment room with limited space.
BBU1U/2URRU1U/2URRU
1U/2URRU
RRU
RRU close totower antenna
To RNC
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DBS3900 Product Family
Remote radio unit
RRU3804 RRU3801E
Distribute NodeB DBS3900
Baseband unit
BBU3900
Remote radio unit
SRXU
+
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DBS3900 Capacity and Characteristics
Specification of the DBS3900
High capacity;
BBU3900 supports 24 cells, with 1,536 UL CEs and 1,536 DL CEs.
One RRU3804 supports the 4-carrier configuration.
When the NodeB expands from 1x1 to 1x4 or from 3x1 to 3x4, no
extra RRU is required.
Characteristics of the DBS3900
Supports RRU cascading
When using the 1.25 G optical module, cascading levels 4
When using the 2.5 G optical module, cascading levels 8
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DBS3900 Capacity and Characteristics
Supports ATMIP and ATM/IP dual stack networking;
Supports multiple clock and synchronization modes;
Iub interface clock
GPS clock
Internal clock
Supports high-speed packet access (HSPA) technology
HSDPA allows the traffic at up to 28 Mbps for a single cell
The peak uplink data rate of an HSUPA subscriber is up to 5.76 Mbit/s.
Supports the Multimedia broadcast and multicast service (MBMS)
Characteristics of the DBS3900
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Chapter1 General Description
Chapter2 Hardware Introduction
Chapter3 Networking and Configuration
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Chapter2 Hardware Introduction
Section1 BBU Hardware
Section2 RRU HardwareSection3 DBS3900 Cables
Section4 Antenna and Feeder Subsystem
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Logical Structure of the BBU3900
TO RRU
Clock modeSignaling
ProcessingOperation&
MaintenancePower mode
E1/T1
FE
Transport
Interface
Transmission
Adaptation
Protocol
Processing
FPProcessing
Codling
Decoding Demodulation
Modulation
Interfac
e
Module
Transport Subsystem Baseband Subsystem
Control Subsystem
External SubsystemOMC
CPRI
RNC
Power
Control
information
Control flowData flow
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BBU3900 Module Introduction
Mandatory boards and modulesWMPT, WBBP, UBFA, and UPEU
The optional boards are the UELP, UFLP, UTRP, and UEIU.
Full configuration
Typical configuration
BBU3900 Module
Baseband unit
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BBU3900 Module Introduction
Slot
16
Slot 18
Slot 19
SLOT0
SLOT1
SLOT2
SLOT3
SLOT4
SLOT5
SLOT6
SLOT7
Active and standby slot definition
only for UTRP board
B
FA
PEU/
EIU
PEU/
EIU
WBBP
WBBP
WBBP
WBBP
UTRP
UTRP
WMPT
WMPT
Slot boards definition
availableUFLP
availableUELP
availableavailableavailableavailableWBBP
availableavailableavailableavailableavailableavailableUTRP
availableavailableWMPT
Slot 7Slot 6Slot 5Slot 4Slot 3Slot 2Slot 1Slot 0Board
available
available
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BBU Module --- WMPT Board
Board number
maximum is 2 for one BBU
mandatory board
working in active andstandby mode
4E1:DB26
IP transmission on
Electrical Port :RJ45
IP transmissionOptical signals: SFP
GPS antenna: SMA
Commissioning:RJ45
Loading Testing:USB
LEDs
Main Functions
Providing OM functions
Controlling other boards in the system and
providing the reference clockProviding USB ports for automatic NodeB
upgraded
Providing transmission port for Iub interface
Providing OM channels
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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.
ALM Red ON The board is reporting hardware alarms.
OFF The board is running properly.
ACT Green ON The board is in active mode.
OFF The board is in standby mode.
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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.
Yellow Blinking There is ongoing data transmission.
OFF There is no data transmission.
LEDs beside the
ETH port
Green ON The connections are functional.
OFF The connections are faulty.
Yellow Blinking There is ongoing data transmission.
OFF There is no data transmission.
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BBU Module --- WMPT Board
Two DIP Switches :
SW1 for setting the E1/T1
working mode
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
Bit 120-ohm E1
Balanced Mode
75-ohm E1
Unbalance
d Mode
Description
1 OFF ON The RRING is for
connected to the
protection ground2 OFF ON
3 OFF ON
4 OFF ON
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BBU Module --- WBBPa Board
Board numbermandatory, 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 chip processing capability, WBBP module include seven
specifications. Current WBBP is the A version, called WBBPa.
CPRI 0 ~2 (1.25G-2.5G): SFP LEDs
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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 running properly.
0.125s ON/OFF Software is being loaded to the board.
ACT Green ON The board is running properly.
OFF The board is not in use.
ALM Red OFF The board is running properly.
ON The board has alarms on hardware and it should be replaced with a new one.
CPRI0
CPRI1
CPRI2
Red
Green
OFF normal
ON The CPRI links over the optical cable are faulty.
Blinking at 2 Hz The RRU on the CPRI link is faulty in hardware.
Blinking at 0.5 Hz The RRU on the CPRI link is faulty in the antenna system connection.
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BBU Module --- WBBP Board
There are 2 kinds of Baseband card, WBBPa and WBBPb.
The WBBPa can Process uplink and downlink baseband signals:Support HSDPA (2 ms TTI) and support for HSUPA phase1 (10 ms TTI).
The WBBPb can Process uplink and downlink baseband signals.
Support HSDPA (2 ms TTI), and support for HSUPA phase2 (2 ms TTI).
Board
Type Cell
Uplink R99
/HSUPA CE
Downlink
R99 CE HSDPA Capacity
HSUPA
throughput
WBBPa 3 cells 128 256 45 HS-PDSCH codes Phase 1
WBBPb1 3 cells 64 64 45 HS-PDSCH codes Phase 1
WBBPb2 3 cells 128 128 45 HS-PDSCH codes Phase 2
WBBPb3 6 cells 256 256 90 HS-PDSCH codes Phase 2
WBBPb4 6 cells 384 384 90 HS-PDSCH codes Phase 2
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Label Color Status Description
STATE Green
0.125s ON,0.125s OFF
The module is not registered, and noalarm is reported.
1s ON, 1s OFF The board is running properly.
Red ON The module is reporting alarms.
Board numbermandatory, maximum is 1
Main Functions
Controlling the fan speed
Reporting the fan status to the WMPT
Detecting the temperature of the fan board
BBU Module --- UBFA Board
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Panel of the UPEAPanel of the UPEB
BBU Module --- UPEU Board
Board numbermandatory, 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 8 dry contact alarm signals
-48V to +12V +24V to +12V
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LED: The UPEU has one LED, indicating the running status of the board.
Label Color Status Description
RUN Green ON The board is running properly.
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 Transmitting RS485 environment
monitoring signalsMON0 1 RJ45
BBU Module --- UPEU Board
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The UTRP provides ports for eight E1s/T1s and implements transport such as IP and
ATM between the BBU3900 and the RNC.
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 running properly.
0.125s ON, 0.125s OFF Software is being loaded to the board.
2s ON, 2s OFF The board is under test.
ACT Green ON The board is in active mode.
OFF The board is in standby mode.
ALM Red OFF The board is running properly.
ON The board is reporting alarms and is faulty.
BBU Module --- UTRP Board
4 E1:DB26
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BBU Module --- UTRP Board Type
WCDMA UTRP extend transmission board
UTRP board should add sub board to provide the different interface type
WD22UTRP is the main board name. The UTRP has three sub-boards in current
version
UAEU: Eight ATM over E1s/T1s
UIEU: Eight IP over E1s/T1s
UUAS: One unchannelized ATM over SDH/SONET(STM-1/OC-3) interface
The board in gray table is not be delivered currently
Board Port
UTRP2 Two universal FE/GE optical port
UTRP3 Ports for eight channels of ATM over E1/T1
UTRP4 Ports for eight channels of IP over E1/T1
UTRP6 Port for one unchannelized STM-1/OC-3
UTRP9 Four universal FE/GE electrical ports
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Label Connector Type
MON0 RJ45
MON1 RJ45
EXT-ALM0 RJ45
EXT-ALM1 RJ45
BBU Module --- UEIU Board
Port : The UEIU has four ports.
Board number: maximum is 1
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
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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 optionalmodule of the BTS3900
cabinet (-48 V) or the power
distribution cabinet.
The UFLP and the UELPare optional units that are
installed in the SLPU.
UFLP
UELP
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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
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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
DIP Status Description
1 2 3 4
S1 ON ON ON ON Used for the 75
unbalanced modeOFF OFF OFF OFF Used for other
modes except the 75
unbalanced mode
BBU Module --- UELP Board
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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
IPCable Connection.
Transmission Equipment
LAN switch or Router
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Chapter2 Hardware Introduction
Section1 BBU Hardware
Section2 RRU HardwareSection3 DBS3900 Cables
Section4 Antenna and Feeder Subsystem
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Logical Structure of the RRU/SRXU
Interfacemo
dule
MTRX
Power
module
Duplexer
Extension
interface
TX signaling
Processing
unit
SRXU
RX signaling
Processing
unit
LNA
PA
LNA
RX signaling
Processingunit
BBU
LNA
LNA
RRU TX1RX1
RX2
RX3
RX4
Antenna system
Antenna system
CPRI
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RRU3804 Characteristics
Support 12dB, 24dB gain TMA
RTWP statistic and report
Standing wave detect and report
Support ASIG (Antenna Interface Standards Group) 2.0
Receiver reference sensitivity typical value -125.5dBm
RRU3804 connected to the SRXU supports 4-way RX diversity
Number of carrier Output Power per Carrier (W)
1 60
2 30
3 20
4 15
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Appearance and Specification of RRU3804/3801E
Item RRU3804/3801E
Dimensionwith
the housing
RRU3804520mm (H) x 280mm (W) x155mm(D)
Weight RRU3804 module :15KG
the RRU3804 module and its h ousin g:16KG
Power input -48V DC Allo wed vol tage range -36
V DC to -57 V DC
maximum power
consumption
275W
SectorCarrier 14(RRU3804) / 12(RRU3801E)
Appearance of the
RRU3804
NOTES:
The RRU3801E appearance (Panel and Ports) is the same
with the RRU3804;
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Panel and Port of RRU3804/3801E
Interconn ection port
between com bined
cabinets
Port for RET antenna
/Power ou tput to the
SRXUMain TX/RX diversity
port
Port for RX
diversity
CPRI Optical ports
Indicators
Power supply
ports
Grounding bol t
A larm
port
Panel of the RRU3804
Ports of th e RRU3804
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LEDs on RRU3804/RRU3801E-I
Label Color Status Description
RUN Green ON The module has pow er input , yet the modu le is faulty
OFF The mo dule has no power input or is report ing alarms
1s on, 1s off The modu le is operat ional
0.5s on, 0.5s off Software is being loaded to the mo dule
ALM Red ON The modu le is report ing alarms (excluding VSWR-
related alarms
OFF The modu le is operat ional
TX_ACT Green ON The module is runn ing
OFF No specif ic meaning
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LEDs on RRU3804/RRU3801E--II
Label Color Status Description
VSWR Red ON VSWR-related alarm s are reported
OFF No VSWP-related alarm is report ed
CPRI_W Red/gr
een
ON (green) The CPRI l ink is n orm al
ON (red) The opt ical mod ule receives loc al alarms related to LOS
0.5s ON, 0.5s OFF
(red)
The CPRI is out of loc k
OFF The opt ical mod ule is not in posit ion o r is pow ered of f
CPRI_E Red/gr
een
ON (green) The CPRI l ink is n orm al
ON (red) The opt ical mod ule receives loc al alarms related to LOS
0.5s ON, 0.5s OFF
(red)
The CPRI is out of loc k
OFF The opt ical mod ule is not in posit ion o r is pow ered off
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Appearance and Specification of SRXU
Item SRXU
Dimension
with the
housing
SRXU270mm(W) x 60mm (D) x 480mm(H)
Weight The weight o f the SRXU:6KG
Power input -48V
DC
Allo wed voltage range -36 V DC to -57 V DC
maximum
power
consumption
30W
Appearance of the SRXU
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Panels and Ports of the SRXU
I nterconnection port
between combined
cabinets
Socket f or power supply
Power I nput Fr om RRU
Port for RET antenna
Port for RX diversity
Port for RX diversity
CPRI Optical ports
Grounding bolt
Indicators
Panel of the SRXU
Ports o f the SRXU
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RRU Configurations
The RRU is divided into two types according to output power and carries:
40 W RRU3801E, 40W output power on the top of cabinet
60 W RRU3804, 60W output power on the top of cabinet
RRU typeFrequency
bandReceiving Band Transmitting Band Carriers
RRU3804 UMTS2100 1920MHz1980MHz 2110MHz2170MHz 4
RRU3801E UMTS2100 1920MHz1980MHz 2110MHz2170MHz 2
RRU3804 UMTS1900 1850MHz1910MHz 1930MHz1990MHz 4
RRU3801E UMTS1900 1850MHz1910MHz 1930MHz1990MHz 2
RRU3804 UMTS1.7/2.1G 1710MHz1755 MHz 2110 MHz2155 MHz 4
RRU3804 UMTS850 824MHz849MHz 869MHz894MHz 4
RRU3801E UMTS850 824MHz849MHz 869MHz894MHz 2
RRU3801C UMTS1800 1710MHz1785MHz 1805MHz1880MHz 2
RRU3801C UMTS900 880MHz915 MHz 925MHz960MHz 2
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Chapter2 Hardware Introduction
Section1 BBU Hardware
Section2 RRU HardwareSection3 DBS3900 Cables
Section4 Antenna and Feeder Subsystem
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Connections of the BBU3900 Cables
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Cables --- Power Cable of the BBU3900
This describes the power cable. Either -48 V power cable or +24 V power cable
can be used, depending on the power input.
Appearance : The power cable has a 3V3 connector at one end and bare wires
at the other end. Appropriate terminals are added to the bare end on site.
1) 3V3 connecter 2) OT terminals
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Cables --- Transmission Cable of BBU3900
E1 Cable
FE Surge Protection Transfer CableE1 Surge Protection Transfer Cable
FE Cable
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Cables --- Power Cable of the RRU3804
The RRU uses a shielded -48 V DC power cable. The cable feeds
external -48 V DC power to the RRU.
Appearance : The cable has two OT terminals at one end and bare
wire at the other end, The OT terminals need to be added on site.
Installation Position
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Cables --- Power Cable of the SRXU
The SRXU uses a shielded DC power cable. The cable feeds power
from the RRU to the SRXU.
Appearance : The cable has a waterproof DB9 connector at each end
Installation Position: One end of the DC power cable is connected to
the RET/PWR_SRXU port at the bottom of the RRU, and the other
end is connected to the PWR_SRXU socket at the bottom of the SRXU.
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BBU3900
Cables --- Optical Cable of RRU3804/SRXU
1) DLC connector 2) Label on the fiber tail 3) Fiber tail
BBU3900-RRU3804/SRXU CPRI Optical Cable
The CPRI optical cable transmits CPRI signals:
between BBU3900 and RRU3801E
between BBU3900 and RRU3804
between RRU3804 and SRXU
The CPRI optical cable is a multi-mode 2-wire
cable with DLC connectors at both ends
BBU and RRU CPRI hardware connection is
same between RRU3801E and RRU3804
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AISG Multi-Wire Cables of RRU3804/SRXU
The five-meter-long AISG multi-wire cable connects the RRU3804/SRXU
to the Remote Control Unit (RCU). If both RRU3804 and SRXU are installed,the AISG multi-wire cable only connects the SRXU and the RCU. This
cable is opt ion al
One end of the AISG multi-wire cable is a waterproof DB9 connector, and
the other end is a standard AISG female connector
AISG Extension Cable of the RRU3804/SRXUOptional
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AISG Extension Cable of the RRU3804/SRXU Optional
Cables
When the distance between the RCU and the RRU3804/SRXU is longer
than 5 m, the AISG multi-wire cable is not long enough to cover the distanceand the AISG extension cable is used. The AISG extension cable is 15 m
long
One end of the AISG extension cable is a standard AISG male connector,
and the other end is a standard AISG female connector
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RF Jumper of the RRU3804/SRXU
Waterproofed Joints
The RF jumper of the RRU3804/SRXU is of two types
Antenna jumper: transmits and receives RF signals. Both
ends of the antenna jumper have DIN connectors
Interconnect jumper: transmits RF signals between
two RRU3804s/SRXUs.
The interconnect jumper is optional, depending on the
site configuration. The interconnect jumper is 2 m
long, and both ends have 2W2 connectors
The 2W2 connectors at the two ends of the
interconnect jumper are linked to the ports labeled
RX_IN/OUT on two RRU3804s/SRXUs respectively
RF Jumper Connections of the RRU
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RF Jumper Connections of the RRU
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Cable Connections of one RRU3804
BBU3900
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Cable Connections of one RRU3804 /SRXU
BBU3900
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Cable Connections of Multiple RRU3804s
Optical cable
Power cableBBU3900
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Cable Connections of Multiple RRU3804s/SRXUs
Optical cablePower cable
Power cable
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Chapter2 Hardware Introduction
Section1 BBU Hardware
Section2 RRU HardwareSection3 DBS3900 Cables
Section4 Antenna and Feeder Subsystem
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Typical Architectures of Antenna System
(1) Directional
antenna
(2) Pole (3) Outdoor
jumper
(4) Outdoor
cable rack
(5) Feeder
clip
(6) Feeder
grounding kit
(7) Outdoor
grounding bar
(8) To outdoor
lightning
protection
ground
(9) Feeder
window
(10) Cable tie (11) indoor
jumper
(12) Indoor
cable rack
(13) Feeder
Scenar io1:BBU and RRU indoo r
+ Roof stat ion
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Typical Architectures of Antenna System
(1) Lightning rod (2) Pole (3) TMA
(4) Directionalantenna
(5)Waterproof
curve
(6) Feedergrounding clip
(7) Feeder (8) Outdoor
cable rack
(9) Feeder
window
(10) Outdoor
grounding bar
(11) Tower
groundingconductor
(12) Cable tie
(13) Guard rail
Scenar io2:BBU and RRU indoo r
+ Tow er Station
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Typical Architectures of Antenna System
Scenar io3:RRU Closed to th e An tenna
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Chapter1 General Description
Chapter2 Hardware Introduction
Chapter3 Networking and Configuration
BBU Networking
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BBU Networking
BBUs and RNC can form multiple
networking modes such as star, chain,
t ree, and hybr idBBUBB
U
BB
U
ChainNetworking mode
StarNetworking mode
BBU
BBU
BBURNC
BBURNC
BBU
BBU
BBU
TreeNetworking mode
For both chain and tree networking modes
cascading levels is less than 5
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RRU Networking
BBUs and RRUs can form multiple networking modes such as star,chain, tree, ring, and hybrid
For both chain and tree networking modes:
When using the 1.25 G optical module, cascading levels 4
When using the 2.5 G optical module, cascading levels 8
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Typical Configuration11
Applied to wide areas and indoor cir cumstances
BBU3900
RRU
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Typical Configuration21Appli ed to long stretched areas
BBU3900
RRU
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Typical Configuration31/32
Appl ied to cit ies or other high capacity areas
BBU3900
RRU
RRU
RRU
High capacity areascities
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Typical Configuration
configuration Number of
WBBPs
Number of RRU3804s (No
TX Diversity)
Number of RRU3801Es
(No TX Diversity)
3 x 1 1 3 3
3 x 2 2 3 3
3 x 3 3 3 6
3 x 4 4 3 6
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