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4 BTS3900 Components
Table 4-1 LEDs on the GTMU
LED
RUN
ALM
ACT
Besides the preceding three LEDs, there are LEDs indicating the connection status of the FE
optical port, FE electrical port, CPRI port and commissioning port. Each of the LEDs is
positioned near the relevant port without any label on the panel of the board.
the LEDs and their status.
Table 4-2 LEDs and their status
LED
LIU0 to LIU3
CPRI0 to CPRI5
ETH
4-6
Color
Status
Green
ON
OFF
ON for 1s and OFF
for 1s
ON for 2s and OFF
for 2s
ON for 0.125s and
OFF for 0.125s
Red
ON
OFF
Green
ON
OFF
Color
Green
Green
Red
Green (LINK LED
on the left)
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Copyright © Huawei Technologies Co., Ltd.
Description
The board is faulty.
There is no power supply, or the
board is faulty.
The board is running properly.
The board is being tested.
Software is being loaded to the
board.
An alarm is generated,
indicating a running fault.
The board is running properly.
The board is in the active state.
The board is in the standby state.
Status
ON
ON for 0.125s and
OFF for 0.125s
OFF
ON
ON
ON
BTS3900
Hardware Description
Table 4-2
describes
Description
The link is in the idle
state.
An E1/T1 remote
alarm is generated.
The link is
functional.
The CPRI link is
functional.
The optical module
fails to receive
signals.
The connection is set
up successfully.
Issue 04 (2011-02-15)
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