If the ALM LED
Is...
It Indicates That...
Then...
Blinking
An alarm is generated
but the board may not
need to be changed.
Check whether this
alarm is due to faults
caused by the
associated boards or
ports.
l
Check whether the RUN LEDs on the
other boards blink quickly.
–
If the RUN LED on the EMUA
blinks quickly, check the RS485
signal cable connection.
–
Check the RUN LED on each
board in the BBU
l
Check whether the dry contact alarm
signal cable is properly connected to
the corresponding port on the UPEU.
l
Plug in the GTMU/WMPT/LMPT/
WBBP/LBBP/UERI/UTRP again or
restart the MRFU/RRU3908 to check
whether the fault is rectified.
l
If the GPS antenna system is
configured, check whether it is
properly connected.
3.
Check the STATE LED on the FAN.
If the STATE LED
Is...
It Indicates That...
Then...
Blinking (green)
The board works
properly.
.
Blinking (red)
The board is faulty.
Reinstall the board to check whether
the fault is rectified. If the fault
persists, replace the board.
4.
Check the CPRI LEDs on the GTMU/WBBP/LBBP/MRFU/RRU3908.
If the CPRI LED Is...
It Indicates That...
Then...
ON (green)
The CPRI link is normal,
and the MRFU/RRU3908
is functioning properly.
Go to
.
3900 Series Multi-Mode Base Station
Commissioning Guide
6 Commissioning the MBTS by Using USB and M2000
Issue 02 (2010-07-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6-23