Rectifier; Smu - Huawei TP48200A-D17A5-2 Telecom Power User Manual

TP48200A-D17A5-2 Telecom Power
User Manual

4.1.3 Rectifier

Table 4-3 Rectifier maintenance
No. Maintenance Item
1 Check the green indicator status
(normal: steady on).
2 Check the yellow indicator
status (normal: off).
3 Check the red indicator status
(normal: off).

4.1.4 SMU

Table 4-4 SMU maintenance
No. Maintenance Item
1 Check the green indicator
status.
Issue 04 (2019-12-20)
If...
Off:
 There is no AC input.
 The rectifier is faulty.
Steady on:
 Because the ambient
temperature is high, the
rectifier power is limited.
 Because the ambient
temperature exceeds the
upper or lower threshold,
the rectifier shuts down for
protection.
 AC input
over/undervoltage
protection is triggered.

The rectifier is in
hibernation.
Blinking:
 The rectifier
communication has failed
 The rectifier is faulty.
Steady on:

The rectifier is latched off
due to output overvoltage.

The rectifier is faulty.
If...
Off:
 There is no DC input.
 The SMU is faulty.
Copyright © Huawei Technologies Co., Ltd.
4 Maintenance
Then...
1. Check the rectifier AC input.
2. Replace the rectifier.
1. Check the ambient
temperature status, and clean
the cabinet air channel.
2. Rectify faults in the indoor
temperature control system.
3. Check the AC input voltage.
4. The rectifier is in
hibernation. No action is
required.
1. Check that the rectifier
communications cable is
securely connected.
2. Replace the rectifier.
1. Check that the cabinet is not
connected to an external DC
power source that has a
voltage of greater than 58.5
V DC.
2. Check that the rectifier
output voltage is within 58.5
V DC.
3. Replace the rectifier.
Then...
1. Check that the DC input
power cable is securely
connected.
2. Check that the
communications cable is
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