Cisco XR 12406 - Manual (Page 39)

1-23
Cisco XR 12406 Router Installation Guide
OL-13831-01
Chapter 1 Cisco XR 12406 Router Overview
Line Cards
Multigigabit Crossbar Switch Fabric
The Cisco XR 12406 Router switch fabric circuity provides synchronized
gigabit-speed interconnections for the line cards and the route processor. The
switch fabric circuitry resides in five fabric card slots: two for CSCs; three for
SFCs (
Figure 1-11 ).
Figure 1-11 Clock and Scheduler and Switch Fabric Card Bays
Switch Fabric Card Types
The CSCs are installed in the half-width slots labeled CSC 0 and CSC 1 on the
lower left side of the chassis, located directly beneath the route processor and line
card cage and directly above the alarm card bays. The three SFCs are installed in
the half-width slots labeled SFC 0, SFC 1, and SFC 2 on the lower right side of
the chassis.
Note To operate the Cisco XR 12406 Router, you must have at least one CSC card
installed, in addition to SFC and alarm cards.
SLO T-0
GIGABIT R OUTE PROC ESSOR
SLO T-1
COLL
LINK TX
RX RJ-45
MII
RESET
AU X
EJECT
CONSOLE
57084
SFC
CSC
CSC
SFC
SFC
Alarm
cards (2)
CISCO 12000
SERIES GIGABIT SW ITCH ROUT ER