If the RUN LED
Is...
It Indicates That...
Then...
ON
The power supply is
available but the board
is faulty.
Reinstall the board to check whether
the fault is rectified. If the fault persists,
replace the board.
Blinking at 4 Hz (ON
for 0.125s and OFF
for 0.125s)
The software is being
loaded or the board is
inserted in the wrong
slot.
Wait for five minutes to check the
status of the RUN LED again.
If the RUN LED still blinks at 4 Hz,
check whether the board is inserted in
the correct slot. If not, reinstall the
board.
OFF
The power supply is
unavailable or the
board is faulty.
l
Check whether the base station is
powered on. If not, power on the
base station.
l
Reinstall the board to check whether
the fault is rectified. If the fault
persists, replace the board.
2.
Check the ALM LEDs on the GTMU/WMPT/LMPT/WBBP/LBBP/UERI/UTRP/MRFU/
RRU3908.
If the ALM LED
Is...
It Indicates That...
Then...
OFF
The GTMU/WMPT/
LMPT/WBBP/LBBP/
UERI/UTRP/MRFU/
RRU3908 are not
faulty.
Go to
.
ON
The GTMU/WMPT/
LMPT/WBBP/LBBP/
UERI/UTRP/MRFU/
RRU3908 are faulty.
Reinstall the board to check whether the
fault is rectified. If the fault persists,
replace the board.
6 Commissioning the MBTS by Using USB and M2000
3900 Series Multi-Mode Base Station
Commissioning Guide
6-22
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 02 (2010-07-30)