Router Installation Guide

Chapter 5 Maintaining the Router
5-2
Cisco XR 12406 Router Installation Guide
OL-13831-01
The following sections describe tools and procedures necessary to maintain the
Cisco XR 12406 router.
• Tools and Equipment, page 5-3
• Powering Off the Router, page 5-3
• Removing and Installing the Front Cover, page 5-4
• Removing and Replacing the Air Filters, page 5-6
• Removing and Replacing the Blower Module, page 5-8
• Removing and Replacing an AC Power Entry Module, page 5-13
• Removing and Replacing an AC PDU, page 5-19
• Removing and Replacing a DC PEM, page 5-26
• Removing and Replacing a DC PDU, page 5-31
• Removing and Replacing an RP or a Line Card, page 5-41
• Removing and Installing a Clock and Scheduler Card, Switch Fabric Card, or
Alarm Card, page 5-50
• Upgrading the RP and Line Card Memory, page 5-58