CHAPTER 5
Replacing Router Components
The router is equipped as ordered and is ready for installation and startup when it is shipped. As network
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 these sections:
• Prerequisites and Preparation, on page 131
• Removing and Replacing the Fan Tray, on page 133
• Removing and Replacing the Air Filter, on page 135
• Removing and Replacing AC or DC Power System Components, on page 137
• Removing a Chassis from the Equipment Rack, on page 139
• Installing a Replacement Chassis in the Equipment Rack, on page 140
• Packing a Chassis for Shipment, on page 140
Prerequisites and Preparation
Before you perform any of the procedures in this chapter, be sure that you:
• Review the Safety Guidelines, on page 3.
• Read the safety and ESD-prevention guidelines described in the Compliance and Safety Information, on
page 4, and the Regulatory Compliance and Safety Information for the Cisco ASR 9000 Aggregation
Services Router.
• Ensure that you have all the necessary tools and equipment before beginning the procedure.
Field Replaceable Units
These components are field replaceable units (FRUs):
• Chassis
• Power modules
• Fan tray
• Transceiver modules
• Modular port adapters (Cisco ASR 9001 Router)
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
131
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