Cisco Systems Cisco uBR10012 manual Replacing Both DC PEMs

Chapter 5 Maintaining the Cisco uBR10012 Router

Removing and Replacing DC Power Entry Modules

Figure 5-10 Setting the DC Power Switch to the On Position

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Step 6 Replace the front cover (see “Replacing the Front Cover”).

Replacing Both DC PEMs

Use the following procedure to replace (or reinstall) both DC PEMs. This typically is done only in the following situations:

•The failure LEDs (MISWIRE or FAULT) on both DC PEMs are lighted, indicating a problem with either the DC power source or the DC PEMs.

•A single DC power source is currently being used for both DC PEMs, and you want to use a separate DC power source for each DC PEM (this is the recommended configuration).

Caution This procedure requires shutting down the Cisco uBR10012 router and removing all power to the system. To avoid this, Cisco recommends replacing each DC PEM one at a time, using the instructions given in the “Removing and Replacing DC Power Entry Modules” section on page 5-8.

Step 1 Remove the front cover (refer to “Removing the Front Cover” section on page 5-3).

Step 2 Shut down the system (refer to “Shutting Down the System” section on page 5-2).

Step 3 Turn the power switch on each DC PEM to the OFF (0) position (see Figure 5-11).

	Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
OL-18259-01		5-13