Prerequisites And Preparation - Cisco ASR 9901 Hardware Installation Manual

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:
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Prerequisites and Preparation

Before you perform any of the procedures in this chapter, be sure that you:
• Review the
• Read the safety and ESD-prevention guidelines described in the
• 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)
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
Safety Guidelines, on page
page 4, and the Regulatory Compliance and Safety Information for the Cisco ASR 9000 Aggregation
Services Router.
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
C H A P T E R
3.
Compliance and Safety Information, on
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131