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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
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5
To test PFT jacks, follow the steps below:
Plug a touch-tone or rotary dial telephone into a PFT jack.
Note 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.
Turn off power to the control unit.
Follow the procedure in “Powering Down the System” in Chapter 9.
If the telephone is connected to a GS trunk, push the GS button attached
to the telephone.
Pick up the handset on the touch-tone or rotary dial telephone.
You should hear a dial tone.
7-18 Initializing and Testing the System