AT&T 3.0 manual Checking System and Slot Status, Replacing the Carrier, System Status

Checking System and Slot Status

5Remove the processor, the power supply, and all other modules from the faulty carrier. (If you prefer to remove the cords first, make sure they are labeled.)

6Put the modules aside, in order, so that you can reinstall them later in the replacement carrier.

7Remove all modules from the carriers to the right of the faulty carrier.

8Starting with the rightmost carrier, loosen the four screws that secure the four corners of the carrier to the backboard.

9Slide the carrier to the right until the connector disengages from the carrier to the left.

10Pull the carrier away from the wall so that the screws slip through the large screw holes.

11Repeat Steps 8-10 until the faulty carrier is removed.

Replacing the Carrier

After removing the faulty carrier, use the steps below as a guideline for installing a new carrier.

1 Install the replacement carrier(s). See Installation for instructions.

2 Replace the modules with all cords connected as they were before.

Checking System and Slot Status

In addition to checking error logs, the access log, and running module tests, you can request System Status and Slot Status information for each module.

System Status

The power supply, processor, 400EM module, and 10OD module are the only modules that have LEDs. The System Status screen displays simulated LEDs for the processor and each of these modules but not for the power supply.

4-86Control Unit Problems