Table 4-23
LEDs on the LBBP
Label
Color
Status
Description
RUN
Green
On
The board is powered
on but is faulty.
Off
The board is not
powered on, or it is
faulty.
On for 1s and off for
1s
The board is running
properly.
On for 0.125s and off
for 0.125s
Data is being loaded
to the board, or the
board is not started.
ALM
Red
On
An alarm is reported,
indicating a fault in
the board.
Off
The board is normal.
ACT
Green
On
The board works in
active mode.
Off
The board works in
standby mode.
The LBBP provides six LEDs indicating the status of the SFP links. The LEDs are positioned
above the SFP ports.
describes the LEDs.
Table 4-24
LEDs indicating the status of the SFP links
Label
Color
Status
Description
TX RX
Red/Green
Steady green
The CPRI link is
available.
Steady red
The optical module
may fail to send or
receive signals. (The
failure may be caused
by a faulty optical
module or
disconnected optical
fiber.)
Blinking red (on for
0.125s and off for
0.125s)
The RRU in the CPRI
link has a hardware
fault.
4 BTS3900 Components
BTS3900
Hardware Description
4-22
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)