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2008 Directed Electronics—all rights reserved
Nuisance prevention circuitry
NPC requires that you change the way you test the system since NPC will bypass
an input zone for 60 minutes. If the system “sees” the same zone trigger three
times, and the triggers are spaced less than an hour apart, the system will bypass
that input zone for 60 minutes.
If that zone does not attempt to trigger the system during the 60-minute bypass
period, the zone’s monitoring begins again at the end of the hour. If it does at-
tempt to trigger while bypassed, the 60-minute bypass starts over again.
Disarming and rearming the system does not reset NPC. The only way to reset
NPC™ is for the 60 minutes to pass without a trigger, or for the ignition to be
turned on. This allows the system to be repeatedly triggered, disarmed and re-
armed, and still allow NPC to bypass a faulty zone.
When disarming the system, 5 chirps indicate NPC is activated. The LED will re-
port the zone that has been bypassed. (See Diagnostics section of this guide.)
Summary of Contents for Responder LE 3.3X
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