Router Installation Guide

1-13
Cisco XR 12416 Router Installation Guide
OL-13833-01
Chapter 1 Product Overview
Physical and Functional Description of Router
DC Power Supplies
Each DC PEM operates from a nominal source DC voltage of –48 to –60 VDC
and requires a dedicated 60 amp service.
Figure 1-9 identifies the components of a 2400 W DC power supply.
Figure 1-9 2400 W DC Power Supply Components
1 Handle 3 Ejector lever
2 Fan 4 Power switch
129494
PWR OK
FAULT
TEMP
OC
PWR OK FAULT TEMP OC
3
1
2
4