How to enable phone line supervision in the D4412 or D6412.

 Using Remote Programming Software:

• Browse to PANEL WIDE PARAMETERS/Phone, Auto-Forward and RAM Configuration.
• Double-click and select: Enable Supervision (System Trouble at CMD CTR).

Using Keypad Programming:

• Set Phone Line Fault Response Options, nibble 0220, to a non-zero value to enable phone line supervision; Check chart below to view nibble programming options.

Select one of the following:

1. (1) - Enable supervision
2. (3) - Enable supervision, Burg alarm & strobe functions, All or part on
3. (5)- Enable supervision, Burg alarm & strobe functions, off
4. (7) - Enable supervision, Burg alarm & strobe functions, All or part on, and off

• When phone line supervision is enabled, the panel monitors for voltage. If voltage drops below 1 V for 40 seconds the panel declares a phone line fault.