Fan Tray - Cisco Carrier Routing System CRS-1 Installation Manual

Chapter 1 Overview
Figure 1-2
2

1 Fan tray

2 AC power plug connectors
The Cisco CRS 4-slot line card chassis contains the following components:
As many as four MSCs, FPs, or LSPs and four PLIMs. The line card and PLIM are an associated
•
pair of cards that mate through the chassis midplane. The line card provides the forwarding engine
for Layer 3 routing of user data, and the PLIM provides the physical interface and connectors for
the user data.
Each line card can be associated with several different PLIMs that provide different interface speeds
and technologies. For a full list of available PLIMs, please contact your Cisco sales representative.
OL-10971-10
Rear (SFC) View of the Cisco CRS 4-Slot Line Card Chassis
1
3
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
3 Switch fabric card slots
Chassis Components
1-3