
APPENDIX
Maintaining the Cisco 2524 and Cisco 2525 Routers A-1
A
Maintaining the Cisco 2524 and
Cisco 2525 Routers
This appendix contains information about maintenance procedures you might need to
perform on the router as your internetworking needs change.
This appendix contains the following sections:
• Installing WAN Modules
• Opening the Chassis
• Upgrading the Boot Flash Memory
• Upgrading the DRAM SIMM
• Replacing System-Code SIMMs
• Closing the Chassis
• Recovering Lost Passwords
• Virtual Configuration Register Settings
• Copying a Cisco IOS Image to Flash Memory
Caution Before opening the chassis, ensure that you have discharged all static electricity
from your body and be sure the power is OFF. Before performing any procedures described
in this appendix, review the sections “Safety Recommendations,” “Maintaining Safety with
Electricity,” “Preventing Electrostatic Discharge Damage,” and “General Site
Requirements” in the chapter “Preparing to Install the Cisco 2524 and Cisco 2525
Routers.”
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