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Cisco XR 12416 Router Installation Guide
OL-13833-01
CHAPTER
5
Maintaining the Router
The Cisco XR 12416 router is equipped as ordered and is ready for installation
and startup when it is shipped. As your networking requirements change, you may
need to upgrade the system by adding or changing components. This chapter
describes how to maintain router components.
Procedures for maintaining the router are described in the following sections:
• Powering Off the Router, page 5-2
• Removing and Installing Front Doors, page 5-3
• Cleaning or Replacing the Chassis Air Filter, page 5-7
• Removing and Replacing Blower Modules, page 5-10
• Removing and Replacing AC and DC Power Subsystem Components,
page 5-14
• Removing and Replacing the Standard AC-Input Power Shelf, page 5-19
• Removing and Replacing the Optional 2-Level AC-Input Power Shelf,
page 5-24
• Upgrading to the Optional AC Power Shelf, page 5-30
• Removing and Replacing a DC PEM, page 5-31
• Removing and Replacing the DC Power Shelf, page 5-37
• Removing and Replacing Cards from the Chassis, page 5-46
• Removing and Installing a Chassis, page 5-53
• Removing and Replacing a Power Bus Board Fuse, page 5-61