Cisco 2525 Guida Utente Scaricare il pdf (Pagina 123)

Maintaining the Cisco 2524 and Cisco 2525 Routers A-11

Replacing System-Code SIMMs

The system code (software) is stored in Flash memory SIMMs. The 80-pin Flash memory

SIMMs must be purchased from Cisco Systems. Contact a customer service representative

for more information.

Note The system code for both the Cisco 2524 and Cisco 2525 can be contained on either

one or two 80-pin Flash memory SIMMs. If only one 80-pin SIMM socket is populated, it

must be the SIMM socket indicated in Figure A-3 (labeled CODE0).

Tools and Equipment Required

You will need the following tools to remove and replace the system-code SIMMs on the

router:

• Medium-size ﬂat-blade screwdriver (1/4 inch [0.625 cm])

• ESD-preventive wrist strap

• The appropriate system-code SIMM(s) for your router

System-Code SIMM Replacement

Take the following steps to upgrade the system-code Flash memory SIMMs:

Step 1 Turn OFF the power, but to channel ESD voltages to ground, do not unplug the

power cord.

Step 2 Attach an ESD-preventive wrist strap.

Step 3 Open the chassis cover following the procedure in the section “Opening the

Chassis” earlier in this appendix.

Step 4 Orient the chassis as shown in Figure A-3, with the system-code SIMMs toward

you.

Step 5 Locate the system-code SIMMs on the system card. The SIMM sockets are

labeled CODE0 and CODE1. (See Figure A-3.)

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Cisco 2525 Guida Utente Pagina 123