Cisco Systems 4900M manual Removing and Replacing the Power Supply

Chapter 3 Installing the Switch

Removing and Replacing the Power Supply

Step 2 When the switch is online, enter the show module command. Verify that the system acknowledges the new module and that the module’s status is listed as good in the command output.

Step 3 If the module is not operational, reseat it. If the module is still not operational, contact your customer service representative.

Removing and Replacing the Power Supply

This section describes how to remove and install the AC and DC-input power supplies. This information is presented in the following sections:

•Required Tools, page 3-23

•Removing a Power Supply, page 3-23

•Installing a Power Supply, page 3-24

Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034

Locate your power supply and notice the location of the captive installation screws.

Note The power supplies are hot-swappable, so in redundant mode you will not need to power down the switch to replace most power supplies. In combined mode some slots may lose power during power supply replacement.

	Cisco Catalyst 4900M Switch Installation Guide
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