Installation guide

Upgrading System Memory in Cisco 2600 Series Routers

78-5125-04 B0

Accessing the System Board

Removing the Chassis Cover on Cisco 2691

Complete the following procedure to remove the chassis cover:

Step 1 Power OFF the router and unplug the AC power cord.

Step 2 Disconnect all network interface cables from the rear panel.

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 Place the router on a flat surface. Remove the five screws located on top of the cover.

Step 5 Rotate the cover up to a 45-degree angle. (See part 1, Figure 3.)

Step 6 Slide the cover to the side until the tabs are free from the slots. (See part 2, Figure 3.)