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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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Chapter 7 Maintaining the Router
Removing and Replacing a Power Bus Board Fuse
Installing the Replacement Chassis
Use the following procedure to install the replacement rack in the chassis.
Step 1 Disconnect the temporary ground connections to the replacement chassis.
Step 2 Install the chassis into the rack (see Rack-Mounting the Router Chassis,
page 3-8).
Step 3 Connect all ground connections to the chassis (see Supplemental Bonding and
Grounding Connections, page 3-21).
Step 4 Attach the vertical cable management troughs (see Attaching the Vertical
Cable-Management Trough, page 3-25).
Step 5 Connect all line card interface cables using the notes and labeling you created
when disconnecting them from the defective chassis.
Step 6 Connect power cables to the router (see Connecting Power to the Power Shelf,
page 3-41).
Step 7 Power on the router (see Powering On the Router and Observing the Boot Process,
page 4-4).
Removing and Replacing a Power Bus Board Fuse
There are two user-replaceable fuses on the power bus board inside the power
interface panel:
• The fuse labeled F1 protects the MBus controller module.
• The fuse labeled F2 protects the 5.1 VDC bias voltage for the current
monitoring (Imon) signal and the voltage monitoring (Vmon) signals on AC
power subsystems.
Note Fuse F2 i s used o nly in AC- input p ower shelves. It is not used in DC-input power
shelves. Spane fuses can be ordered from Cisco as part number:
PWR-2A/125V-FUSE=.