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Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-10
Chapter 1 Overview
Chassis Components
Figure 1-2
Rear (SFC) View of the Cisco CRS 4-Slot Line Card Chassis
The Cisco CRS 4-slot line card chassis contains the following components:
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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.
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Fan tray
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Switch fabric card slots
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AC power plug connectors
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