Huawei Airbridge DBS3900 Product Description page 20

1 Overall Structure of the DBS3900
Board
HCPM/HEC
M
LMPT
LBBP
UPEU
1-8
Quantit
Port y
SFP 3
SFP 0 and SFP 1 2
USB 1
TST
1
ETH 1
FE/GE0 and 2
FE/GE
GPS 1
RST 1
CPRI0 to CPRI5
6
Power port 1
MON0 1
MON1 1
EXT-ALM0 1
EXT-ALM1 1
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Airbridge DBS3900 CDMA Base Station
Connector
Type Function
SFP They are connected to
the RF module.
LC
Indicate Ethernet optical
ports, which are used to
connect to the
transmission device or
gateway
USB Loads software to the
board
USB Test
RJ-45 Debug
RJ-45 Indicate Ethernet
electrical ports, which
are used for connection
to the transmission
device or gateway
SMA Receives GPS signals
- Resets the BBU3900
SFP connector Connecting to the
LRRU, LRFU,
RRU3606 or CRFU for
transmitting service
data, clock signals, and
synchronization
information
3V3 It is used for DC input.
RJ45 Each port provides
monitoring function for
RJ45
one RS485 link. There
are totally two RS485
links.
RJ45 Each port provides four
links for dry contact
RJ45
alarm signal input.
There are totally eight
links of dry contact
alarm signals.
Product Description
Issue 11 (2010-06-18)