Cisco Systems 7500 Series manual Series Chassis Interface

Chapter 6 Maintaining Your Cisco 7507 and Cisco 7507-MX Router

Maintenance Procedures for the Cisco 7507 and Cisco 7507-MX

Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units.

Removing and Replacing the Chassis Interface in the Cisco 7507 and Cisco 7507-MX

The chassis interface (CI) (shown in Figure 6-9) provides environmental monitoring and logic functions for the Cisco 7507 and Cisco 7507-MX. The CI is a printed circuit board mounted to the noninterface processor side (rear) of the backplane. The CI plugs directly into the backplane through the edge connector on the CI and a connector on the rear of the backplane. The chassis interface ships as a spare part as Product Number MAS-7500CI=. Replace the CI only if it fails.

Figure 6-9 7500 Series Chassis Interface

Standoff screw holes

Chassis interface

Standoff screw holes

H2877

Use the following procedure to remove the CI:

Step 1 Turn off the system power switch and disconnect the power cable from the power source.

Step 2 Attach an ESD-preventive strap (your own or the one supplied with the FRU) between you and an unpainted chassis surface.

Step 3 Remove the front panels. (See Step 1 through Step 6 in the procedure for removing front cover panels in the “Removing and Replacing the Cisco 7507 and Cisco 7507-MX Front Chassis Panels” section on page 6-6.)

Step 4 Locate the CI board on the rear of the backplane. (See Figure 6-8.)

Step 5 Carefully remove the CI from its backplane connector.

Note If necessary, gently rock the CI from side to side very slightly to dislodge the pins from the backplane connector.

Step 6 Place the CI in an antistatic bag.

This completes the CI removal procedure.

	Cisco 7500 Series Installation and Configuration Guide
6-12	OL-5008-03 B0