NOTE
Sub represents the slot ID that can be displayed using the display device command.
NOTICE
l Before replacing a power module, ensure that the switch is powered by the other power
module. Replacing the only power module of a switch will interrupt services.
l If two power modules are installed in a switch, they work in 1+1 backup mode. Replacing
one power module will not interrupt services. If you are replacing both power modules,
replace the second one only after the first replaced one starts to work (its indicator is
steady green).
Tools and Accessories
l ESD wrist strap or ESD gloves
l Phillips screwdriver
Procedure
Step 1 Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in
close contact with your wrist and grounded properly.
Step 2 Turn off the power module.
Step 3 Remove the power cable from the power module. The procedure for removing a power cable
is the reverse of the procedure for installing the power cable. For details, see 7.1 Connecting
Power Cables.
Step 4 Remove the power module from the switch.
1. Use a Phillips screwdriver to loosen the captive screw on the power module.
2. Holding the handle, gently pull out the power module.
Step 5 Install the replacement power module in the switch. For details, see 6.1 Installing a Power
Module.
Step 6 Connect the power cable to the new power module. For details, see 7.1 Connecting Power
Cables.
Step 7 Turn on the power module.
S2700&S3700&S5700&S6700 Switch
Hardware Installation and Maintenance Guide
11 Maintaining a Switch
Issue 13 (2017-11-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
79
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