DBS3800 Product Description
Issue V0.1 (2009-11-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
15
Table 2-9 lists the ports on the RRU3804 (DC) or RRU3801E.
Table 2-9
Ports on the RRU3804 (DC) or RRU3801E
Position
Label
Remarks
ANT_TX/RXA
Main TX/RX port
ANT_RXB
Diversity RX port
RX_IN/OUT
Port for RRU3804 interconnection
Bottom
RET
Port for communication with the RET antenna
RS485/EXT_ALM
Port for reporting alarms
RTN (+)
NEG(-)
Terminals for power wires
CPRI_E
Cabling cavity
CPRI_W
Optical ports
Table 2-10 lists the ports on the RRU3804 (DC) or RRU3801E.
Table 2-10
Ports on the RRU3804 (AC)
Position
Label
Remarks
AC-in
AC power input socket
DC-out
DC power output socket
ANT_TX/RXA
Main TX/RX port
ANT_RXB
Diversity RX port
RX_IN/OUT
Port for RRU3804 interconnection
Bottom
RET
Port for communication with the RET antenna
RS485/EXT_ALM
Port for reporting alarms
RTN (+)
NEG(-)
Terminals for power wires
CPRI_E
Cabling cavity
CPRI_W
Optical ports
2.2.5 RRU3808
The RRU3808 transmits and processes RF signals between the BBU3806 or BBU3806C and
the antenna system.