Huawei NetCol5000-A050 - Page 233

Alarm
ID
Alarm Name Alar
m
Seve
rity
Possible Cause Solution
A281-4
0
Power voltage
abnormal
MAJ
OR
1. The power
supply voltage
exceeds the upper
threshold.
2. The SPD and
voltage detection
board is faulty.
1. Check that the power
supply voltage is within
the operating range.
2. Replace the SPD and
voltage detection
board.
A281-8
0
Power voltage
abnormal
MAJ
OR
1. The power
supply voltage
exceeds the upper
threshold.
2. The SPD and
voltage detection
board is faulty.
1. Check that the power
supply voltage is within
the operating range.
2. Replace the SPD and
voltage detection
board.
A281-0
4
Power voltage
abnormal
MAJ
OR
1. The power
supply voltage is
below the lower
threshold.
2. The cables to
the SPD and
voltage detection
board are loose or
damaged.
3. The SPD and
voltage detection
board is faulty.
1. Check that the power
supply voltage is within
the operating range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
A281-0
8
Power voltage
abnormal
MAJ
OR
1. The power
supply voltage is
below the lower
threshold.
2. The cables to
the SPD and
voltage detection
board are loose or
damaged.
3. The SPD and
voltage detection
board is faulty.
1. Check that the power
supply voltage is within
the operating range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 9 Alarm Reference
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 223