Cisco XR 12406 - Manual (Page 214)

Chapter 5 Maintaining the Router
Removing and Installing a Clock and Scheduler Card, Switch Fabric Card, or Alarm Card
5-50
Cisco XR 12406 Router Installation Guide
OL-13831-01
Removing and Installing a Clock and Scheduler
Card, Switch Fabric Card, or Alarm Card
The Cisco XR 12406 router is based on a 10-Gbps switch fabric, where each SFC
or CSC provides a 10-Gbps full-duplex connection to each line card in the system.
The 10-Gbps switch fabric consists of the Clock Scheduler Card and the Switch
Fabric Card. The chassis has slots for two CSCs, three SFCs, and two alarm cards
(
Figure 5-31 ).
Figure 5-31 CSC, SFC, and Alarm Card Slot Locations
Removing and Replacing a Clock Scheduler Card
If a router is not configured with redundant CSCs, it has one CSC installed in
either of the CSC slots, and has a CSC blank filler installed in the second CSC
slot.
Caution The CSCs support OIR, so when the router is equipped with two CSCs, you can
remove either CSC while the system remains powered on. In a router equipped
with only one CSC, you must shut down the router before removing the CSC.
SLO T-0
GIGABIT R OUTE PR OCESSOR
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