• Modular services cards (MSCs)
• Forwarding processor (FPs) cards
• Label switch processor (LSP) cards
MSCs, FPs, and LSPs are referred to as line cards.
Note
• Associated physical layer interface modules (PLIMs)
• SPA Interface Processors (SIPs)
The LCC supports 40G, 140G, and 400G fabric cards, as follows:
• The Cisco CRS-1 Carrier Routing System uses fabric cards designed for 40 G operation (CRS-16-FC/S
or CRS-16-FC/M cards).
• The Cisco CRS-3 Carrier Routing System uses fabric cards designed for 140G operation (CRS-16-FC140/S
or CRS-16-FC140/M cards).
• The Cisco CRS-X Carrier Routing System uses fabric cards designed for 200G operation
(CRS-16-FC400/S or CRS-16-FC400/M cards in 200G mode).
A mixture of 40G, 140G, and 400G fabric cards is not supported except during migration.
Throughout this document, the generic term Cisco CRS Carrier Routing system refers to the Cisco CRS-1,
Cisco CRS-3, and Cisco CRS-X Carrier Routing Systems, unless otherwise specified.
Note
The LCC is secured to the floor and has locking front and rear doors (the front and rear doors are optional).
For safety, the chassis must be secured following the installation procedures for the site.
Note
Chassis Components
This section lists the main components of an LCC. It primarily identifies the components considered
field-replaceable units (FRUs), but where additional detail is useful identifies subassemblies that are not field
replaceable.
The LCC contains:
• As many as 16 MSCs, FPs, LSPs, and 16 associated PLIMs. A line card (MSC, FP, or LSP) and a 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 being switched through the system, and the PLIM
provides the physical interface and connectors for the user data.
For a complete list of available PLIMs, consult your Cisco sales representative or visit
Note
•
The MSC card is available in the following versions: CRS-MSC (end-of-sale), CRS-MSC-B,
CRS-MSC-140G, and CRS-MSC-X /CRS-MSC-X-L.
•
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
2
Overview
Chassis Components