Chapter 5 Maintaining the Router
Removing and Replacing a Power Bus Board Fuse
5-62
Cisco XR 12416 and Cisco XR 12816 Router Chassis Installation Guide
OL-17440-01
Use the following procedure to replace a fuse on the power bus board.
Step 1
Power off the router.
Warning
The router must be powered down before a fuse can be removed and replaced.
Step 2
Remove the power bus board MBus access cover by loosening the four captive
screws (
Figure 5-43
).
Figure 5-43
MBus Controller Access Cover
Step 3
Remove the fuse from the fuse holder using a non-conducting fuse extraction tool
(
Figure 5-44
).
Step 4
Insert the replacement fuse using the fuse extraction tool to hold the replacement
fuse, align the fuse with the opening in the fuse holder.
Step 5
Reinstall the MBus access cover.
Step 6
Power on the router.
28448
Back panel of chassis
MBus access cover
Captive screws
(2 on each side
of access cover)