Label
Color
Status
Description
On for 1s and off for 1s
(red)
The CPRI link has a loss-of-lock error.
Off
The SFP module is out of position, or
the optical module is powered off.
CPRI1
Red/Green
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module (or
the SFP module) is abnormal, and an
alarm is generated.
On for 1s and off for 1s
(red)
The CPRI link has a loss-of-lock error.
Off
The SFP module is out of position, or
the optical module is powered off.
Port
describes the ports on the panel of the LRFU.
Table 4-55
Ports on the panel of the LRFU
Label
Connector
Description
ANT_TX/RXB
DIN
TX/RX port for RF signals
Used for the connection to the antenna system
ANT_TX/RXA
DIN
CPRI0
SFP female
connector
CPRI port
Used for the connection to the BBU. CPRI0 port and
CPRI1 port work in mutual backup mode.
CPRI1
SFP female
connector
CPRI port
Used for the connection to the BBU. CPRI1 port and
CPRI0 port work in mutual backup mode.
PWR
3V3 power
connector
Power port
Used for feeding -48 V DC input power
MON
RJ-45 connector
Monitoring port
Port for monitoring and maintenance
4.7 DCDU-01
The Direct Current Distribution Unit-01 (DCDU-01) supplies DC power to each component in
the cabinet.
4 BTS3900 Components
BTS3900
Hardware Description
4-60
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Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)