Functions
● Converts AC power into 48 V DC power.
● Works reliably and eciently.
Table 3-19 PSU function description
Item Function
Hot swap Hot swappable
Input protection ● Input overvoltage and undervoltage protection
● Input overcurrent protection
Output protection ● Output overvoltage protection
● Output short-circuit protection
● Output current limiting protection
Overtemperature
protection
Overtemperature protection
Indicators
Table 3-20 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
at 0.5
Hz
The PSU is being queried.
Blinking
at 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 indicating
that power will be limited 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.
iSitePower Integrated Smart Site (ICC1000-A1-E1)
User Manual 3 Components
Issue 04 (2022-10-15) Copyright © Huawei Technologies Co., Ltd. 44