User Guide

The Power Supply 33

Chapter 5

Removing a Power Supply

Verify you understand the procedure and all precautions.

Before beginning, read the entire procedure. Verify you understand all the

precautions in these steps as well as those on page 6.

Verify the power switch on the power supply to be removed is in

the Off (|) position.

Unplug the power supply to be removed.

If using the power cord retaining clip, first swing it to the left and free of the

plug. Then remove the plug.

Remove the power supply.

Use a #2 Phillips or cross-head screwdriver to turn the power supply’s captive

fastening screws counter-clockwise until they are loose (they cannot be

completely removed). Firmly grasp the handle of the power supply and

carefully pull the module out of the switch’s power supply slot.

Cover blank slots.

For safety considerations, as well as to promote proper air flow for cooling and

to prevent dust from entering the switch chassis, cover any unoccupied slot

with a blank cover plate.

CAUTION—This procedure should be performed by a trained technician.

CAUTION—Never insert or remove a power supply while its power

switch is in the On (|) position. Verify the power switch is Off (|) first.