AT&T 3.0 manual Checking Unlabeled Wiring

Module Problems

6Restore the module. Lift up the module to disengage it from the rod at the top of the carrier.

7Connect the trunk and extension cords.

8Attach a tag, error printout, or any information that will help identify any visible problems, failure symptoms, and relevant error reports.

Checking Unlabeled Wiring

If a label is missing or damaged, use a tone device and a telephone handset to match like wires.

You need the following tools:

Tone device

Telephone handset

Telephone cord with an 8-pin modular plug 4-pair patch cord

Diagonal pliers or wire strippers

To match like wires, follow the steps below.

1 Insert the telephone cord’s 8-pin plug into an outlet on the floor area.

2Using diagonal pliers or wire strippers, cut off the end of the telephone cord to expose the pairs.

3Choose a single pair and then untwist the wires.

4Attach one wire from the pair you have chosen to each clip. The clips extend from the bottom of the tone device.

5Turn on the switch on the outside of the tone device. You hear a high-pitched, alternating signal.

6Take the telephone handset and a 4-pair patch cord to the cross-connect field between the control unit and the telephone.

Control Unit Problems 4-59