Installing Or Replacing An Ac Power Supply - Cisco Catalyst 9300X Hardware Installation Manual

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Installing a Power Supply

Caution

Warning

Installing or Replacing an AC Power Supply

Procedure

Step 1

Turn off the power at its source.

Step 2

Remove the power cord from the power cord retainer.

Step 3

Remove the power cord from the power connector.

Do not operate the switch with one power-supply module slot empty. For proper chassis cooling, both module

slots must be populated, with either a power supply or a blank module.

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence

of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician

if you are uncertain that suitable grounding is available.

Statement 1024

Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages

and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other

equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all

cards, faceplates, front covers, and rear covers are in place.

Statement 1029

Do not reach into a vacant slot or chassis while you install or remove a module. Exposed circuitry could

constitute an energy hazard.

Statement 206

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Statement 1030

If a Cisco external power system is not connected to the switch, install the provided connector cover on the

back of the switch.

Statement 386

Cisco Catalyst 9300 Series Switches Hardware Installation Guide

Installing or Replacing an AC Power Supply

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