Appendix; Maintaining The Router - Cisco 2600 Series Hardware Installation Manual

Maintaining the Router

This appendix contains selected maintenance procedures you might need to perform on a Cisco 2600
series router as your internetworking needs change. Cisco 2600 series routers include the following
models:
Cisco 2610 and Cisco 2610XM
•
• Cisco 2611 and Cisco 2611XM
Cisco 2612 and Cisco 2613
•
• Cisco 2620 and Cisco 2620XM
Cisco 2621 and Cisco 2621XM
•
• Cisco 2650 and Cisco 2650XM
Cisco 2651 and Cisco 2651XM
•
• Cisco 2691
This appendix includes the following sections:
• Accessing the System Board, page B-2
Upgrading DRAM, page B-5
•
• Replacing Flash Memory, page B-14
Replacing the Boot ROM, page B-29
•
Closing the Chassis, page B-34
•
Replacing the Power Supply, page B-36
•
Additional maintenance procedures are available on Cisco.com and the Documentation CD-ROM that
shipped with your router.
Before opening the chassis, be sure that you have discharged all static electricity from your body and
Caution
the power is OFF. Before performing any procedures described in this appendix, review the
Recommendations" section on page
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
Warning
disconnect the power at the circuit breaker on DC units. To see translations of the various
warnings that appear in this publication, refer to the Regulatory Compliance and Safety
Information document that accompanied this device.
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Cisco 2600 Series Routers Hardware Installation Guide
B
"Safety
B-1