Indicators
Table 3-23 PSU indicator description
Indicator Color Status Description
Power
indicator
Green Steady on The PSU has an AC input.
O The PSU has no AC input.
The PSU is faulty.
Blinking
slowly (0.5
Hz)
The PSU is being queried.
Blinking fast
(4 Hz)
The PSU is loading an application
program.
Alarm
indicator
Yellow O No alarm is generated.
Steady on ● The PSU has generated a pre-warning
due to ambient overtemperature.
● The PSU has generated a protection
shutdown alarm due to ambient
overtemperature or undertemperature.
AC input overvoltage or undervoltage
protection has been triggered.
The PSU is in sleep state.
Blinking
slowly (0.5
Hz)
The communication between the PSU and
the external equipment is interrupted.
Fault
indicator
Red O The PSU is normal.
Steady on The PSU locks out due to output
overvoltage.
The PSU has no output due to an internal
fault.
PowerCube 1000 (STC, Saudi Arabia, ICC800-A1-C2,
ESC800-A1)
Installation Guide 3 Component
Issue 02 (2021-09-28) Copyright © Huawei Technologies Co., Ltd. 46
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