AT&T 3.0 manual Testing the Power Failure Transfer Jacks, Ground-Start Button

Testing the System

Testing the Power Failure Transfer Jacks

To test a power failure transfer (PFT) jack for proper operation, the outside line numbers to the module’s line/trunk jacks must be assigned and the trunks must be operational. A PFT telephone on a GS line must have a GS button attached to the telephone. See Figure 7–1.

Figure 7–1. Ground-Start Button

To test PFT jacks, follow the steps below:

1Plug a touch-tone or rotary dial telephone into a PFT jack.

2Note the outside line number assigned to the lowest line/trunk jack on the module and be sure that the outside trunk is connected to the system.

3Turn off power to the control unit.

Follow the procedure in “Powering Down the System” in Chapter 9.

4If the telephone is connected to a GS trunk, push the GS button attached to the telephone.

5Pick up the handset on the touch-tone or rotary dial telephone. You should hear a dial tone.

7-18Initializing and Testing the System