Huawei AR1200-S Series Hardware Description page 151

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
Indicator
Issue 03 (2012-04-20)
Color
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description
If the indicator blinks, the output power is out of
range, for example, overvoltage, overcurrent,
and short-circuit.
If the indicator is off, the input power is out of
range, for example no AC input, overvoltage,
and undervoltage, or the output power is out of
range, for example, undervoltage and
overtemperature.
7 List of Indicators
144