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
Table 4-55 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 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)
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