LED
Color
Status
Description
On
There is a pre-alarm
relating to
temperature or the
fan.
Fault LED
Red
Off
The PSU is normal,
or the PSU has no
output because of
faults (such as no AC
input, or overvoltage
and undervoltage of
AC input) on the
mains.
On
There is no output
because of output
overvoltage
shutdown, the fan
fault,
overtemperature
shutdown, remote
shutdown, or an
internal PSU fault.
4.12.4 Power Subrack (AC/DC)
The power subrack (AC/DC) provides the power input wiring terminals, wiring terminals for
batteries, and battery power output wiring terminal. The terminals are used for the connections
of the input power cables, output power cables, and power cable for the batteries respectively.
Panel
shows the panel of the power subrack (AC/DC).
BTS3900
Hardware Description
4 BTS3900 Components
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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