Replacing A Power Module; Removing, Cleaning, And Installing A Power Module Air Filter - H3C S12508-AC Installation Manual

Removing, cleaning, and installing a power module air filter

The power module air filter of an S12500 switch is right behind the front panel of the power frame to
prevent dust from entering the power frame.
To remove, clean, and install the power module air filter:
Loosen the fastening screws on the power module air filter and gently remove the air filter.
1.
Figure 59 Remove the power module air filter
(1) Power module air filter
Wash the air filter by using clean water, and then air-dry the air filter.
2.
Position the air filter to the right place, and fasten the fastening screws on the air filter.
3.

Replacing a power module

WARNING!
Power modules for the S12500 are hot-swappable. When installing and replacing a power module with
the switch powered on, pay attention to the operation procedures and electricity safety issues. To avoid
injury, do not touch any wires, terminals, and parts with a high-voltage hazard sign.
Preparing for the replacement
To prepare for the replacement:
Put on an ESD-preventive wrist strap, and make sure that the wrist strap makes good skin contact
1.
and is well grounded.
Unpack the power module or PEM to be installed.
2.
Remove the cables connected to the PEM and turn off the power switch on the power frame before
3.
replacing the PEM.
(2) Fastening screws
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