Cisco 2600 Series Hardware Installation Guide

B-1
Cisco 2600 Series Routers Hardware Installation Guide
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APPENDIX B
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.
Caution Before opening the chassis, be sure that you have discharged all static electricity from your body and
the power is OFF. Before performing any procedures described in this appendix, review the “Safety
Recommendations” section on page 21.
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units;
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.

Cisco 2600 Series Specifications

General

Brand	Cisco
Model	2600 Series
Category	Network Router
Language	English