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HUAWEI USG9500 Series
Hardware Guide
Follow-up Procedure
After replacing the power module, collect all tools. If the replaced power module is faulty, fill
in the
Sheet to the equipment supplier or the specified repair service provider.
3.4.4 Replacing an AC Power Module of the USG9520
This section describes the procedure for replacing an AC power module of the USG9520.
Context
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Issue 03 (2017-12-15)
Repair Transmission Sheet
Before replacing a power module, switch off the corresponding circuit breaker on the
power distribution cabinet. This powers off the power module to be replaced. In addition,
switch off the power module to be replaced.
The USG9520 has two power modules. Do not power off the other during the process of
removing one power module.
The USG9520 has two types of AC power modules: 1600 W and 2200 W.
and
Figure 3-36
show the power modules respectively. These two types of power
modules cannot be inserted on the same device.
Figure 3-35 R4850G2 AC power module (2200 W)
Figure 3-36 EPW30B-48A AC power module (1600 W)
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Copyright © Huawei Technologies Co., Ltd.
and send the faulty module with the Repair Transmission
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H U A W
R 4 8 5 0
G
3 Hardware Maintenance
Figure 3-35
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