Dc Power System - Cisco CRS-1 System Description

Chapter 2 Chassis Power System

DC Power System

This section provides an overview of the DC power system on the Cisco CRS 4-slot line card chassis.
For a complete description of DC power on this routing system, see the Cisco CRS Carrier Routing
System 4-Slot Line Card Chassis Installation Guide. The DC power shelf consists of two major
components, as shown in
•
•
Figure 2-4
1 DC power input shelf
When installing the DC power shelf, these two components are mated to create the complete DC power
shelf.
OL-10805-10
Figure
DC power input shelf (Cisco product number: CRS-4-DC-INPUT)
Figure 2-4 shows the power supplies installed in the DC power input shelf.
Power input module (PIM) (Cisco product number: CRS-4-DC-PIM)
DC Power Shelf: DC Power Input Shelf and Power Input Module (PIM)
1
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis System Description
2-4:
Front orientation
Rear orientation
2 Power input module (PIM)
DC Power System
2
2-7