Chapter 5 Maintaining the Cisco uBR10012 Router

Removing and Replacing DC Power Entry Modules

Figure 5-13 DC Power Connection Location

RTN

(+)

 

48/–60

V

 

 

98748

Warning

Use copper conductors only. Statement 1025

Step 7

Verify that the power switch on each replacement DC PEM is in the off position (see Figure 5-6).

Step 8

Position the first replacement DC PEM in the power bay and push it forward, verifying that it goes all

 

the way in and makes a secure connection with the backplane. Tighten the captive screws (see

 

Figure 5-14).

Step 9 Position the second replacement DC PEM in the power bay and push it forward, verifying that it goes all the way in and makes a secure connection with the backplane (see Figure 5-14).

Step 10 Tighten the captive screws.

Caution Although one DC PEM can supply sufficient power for a fully configured chassis, the Cisco uBR10012 router must be run only with two DC PEMs installed because this provides redundant power support, allows for proper cooling, and prevents inadvertent contact with hazardous circuits.

 

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Cisco Systems Cisco uBR10012 manual Use copper conductors only. Statement, DC Power Connection Location