Bridge/Router Installation and Configuration Guide

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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Chapter 7 Maintaining the Router
Removing and Replacing a DC PEM
Figure 7-37 identifies the components of a 2400 W DC power supply.
Figure 7-37 2400 W DC Power Supply Components
Caution You cannot mix power supply types within the chassis. If you plan to replace a
2000
W PEM from an original system with a new 2400 W PEM, you must replace
all of the older PEMs and the power shelf (see
Table 7-1 on page 7-30). To
perform the upgrade, you must shut down the router. Be sure to notify the system
administrator and other appropriate personnel that all routing traffic stops while
the upgrade takes place.
1 Handle 3 Ejector lever
2 Fan 4 Power switch
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PWR OK
FAULT
TEMP
OC
PWR OK FAULT TEMP OC
3
1
2
4