User guide

B-10 Cisco 2500 Series Access Server User Guide

Replacing System-Code SIMMs

The system code (software) is stored on Flash memory or PROM SIMMs. The 80-pin Flash

memory and PROM SIMMs must be purchased from us. Contact a customer service

representative for more information.

Note The system code for all the access server models can be contained on either one or

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

it must be the SIMM socket indicated in Figure B-2 (CODE 0).

Tools and Equipment Required

The following lists the tools required to remove and replace the system-code SIMMs on the

access server:

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

• ESD-preventive wrist strap

• The appropriate system-code SIMM(s) for your access server model

Flash memory and PROM SIMMs for the access server are available only from us.

Contact a customer service representative for more information.

System-Code SIMM Replacement

Following is the procedure for upgrading the system-code Flash memory or PROM

SIMMs:

Step 1 Turn OFF 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 using the tools and procedures in the section “Opening the

Chassis” earlier in this appendix.

Step 4 Turn the chassis so that the system card is opposite the position shown in

Figure B-2, with the system-code SIMMs toward you.