AD2000, AD2001, & AVD-2005 - Why doesn’t my dialer activate when I remove the applied +12VDC on the input(s)?

The 1K-ohm resistor (provided) needs to be installed across the alarm output terminals of the alarm panel or across the input terminals of the dialer (such as 1 and C). Program the specified input for Normally Open (N.O.) activation. Dialer will activate once the input senses that the voltage has been removed.

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