Label
Color
Name
Status
Description
OFF
An error occurs during the running
of the rectifier.
ALARM
Yellow
Alarm LED
ON
Output overcurrent alarm or
overtemperature alarm
Blinking
The communication is disrupted.
OFF
The rectifier is running properly.
FAULT
Red
Fault LED
ON
Fan faults, output overvoltage, and
external short circuit.
OFF
The rectifier is running properly.
describes the LEDs on the panel of the monitoring module in the AC/DC power
equipment.
Table 5-8
LEDs on the panel of the monitoring module
Label
Color
Name
Status
Description
RUN
Green
Run LED
Blinking at
0.5 Hz
The module is running properly.
Blinking at 4
Hz
The module is not faulty but unable
to communicate with the PMU
properly.
ALM
Red
Alarm LED
ON
An alarm is generated.
OFF
No alarm is generated.
DIP Switches
shows the DIP switches on the PMU.
BBU3900
Hardware Description
5 Auxiliary Devices of the BBU3900
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-13
Summary of Contents for BBU3900
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