Installation guide

3
Upgrading System Memory in Cisco 2600 Series Routers
78-5125-04 B0
Accessing the System Board
Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with
telephone-network voltages. 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.
Step 3 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin. Connect the
equipment end of the wrist strap to the metal back plate of the chassis.
Step 4 Remove the screws located on the top of the chassis. Note that the chassis is comprised of two sections:
top and bottom.
Step 5 Holding the chassis with both hands, position it as shown in Figure 1.
Step 6 Slide the top section away from the bottom section as shown in Figure 2.
Figure 1 Holding Chassis for Cover Removal
Figure 2 Removing Chassis Cover
Step 7 When the top cover is off, set it aside. Figure 5 shows the layout of the system board.
Note The system board layout in Figure 5 shows the boot ROM in position U23, which is specific
to the Cisco 261x. On the Cisco 262x, Cisco 265x, and Cisco 269x the boot ROM will be in
position U22.
POWER RPS ACTIVITY
H11658
Cisco 2600 SERIES
35392
POWER RPS ACTIVITY
Cisco 2600 SERIES