Directed Electronics 3100 Panduan Instalasi - Halaman 9
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Nuisance Prevention Circuitry (NPC)
Nuisance Prevention Circuitry™ or (NPC) bypasses input zones for 60 min-
utes.This prevents annoying repetive trigger sequence due to faulty door pin
switches or environmental conditions such as thunder, jackhammers, and air-
port noise.
When the same zone triggers three times, less than an hour apart, the system
bypasses that zone for 60 minutes. If the zone does not trigger the system
during the 60-minute bypass period, zone monitoring begins again when 60
minutes has passed. If the zone does trigger while bypassed the 60-minute
bypass starts over again. The vehicle doors are protected differently by NPC.
If the system is triggered by an open door for three, full 30-second cycles (one
and one half minutes), the system bypasses the doors until the trigger ceases.
Disarming and rearming does not reset NPC. To reset NPC 60-minutes must
pass without a trigger, or it is reset when the ignition is turned on. The system is
able to trigger repeatedly, disarm, re-arm, and allow NPC to bypass a faulty
zone.
When disarming 5 chirps indicates NPC is active. The LED reports the by-
passed zone, as described in the table below.
Table of Zones
A zone is represented by the number of status LED flashes used by the
system to identify a particular type of input.
Zone
Description
1
(-) multiplex trigger input
2
Instant trigger: a heavier impact
detected by the on-board shock
sensor
3
Door switch trigger
5
Ignition trigger
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Input Description
H1/6 Blue wire
On-board shock sensor.
H1/5 Green and H1/7 Violet
H1/9 Yellow wire
7