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Nuisance prevention® circuitry
Your system has Directed
’
s Nuisance Prevention
®
Circuitry (NPC). It
prevents annoying repetitive trigger sequences due to faulty door pin
switches or environmental conditions such as thunder, jackhammers,
airport noise, etc.
For example:
If the alarm triggers three times within a 60-minute period and
each time the same sensor or switch triggers the alarm, NPC will
interpret those triggers as false alarms. After the third trigger, NPC
ignores, or bypasses, that sensor or switch (along with any other sensors or
switches sharing the same zone) for 60 minutes.
If the bypassed sensor tries to trigger the security system while it is being
bypassed, the 60-minute bypass period will start over. This ensures that
a sensor that is continually being triggered will remain bypassed.
The vehicle doors are protected by NPC differently. If your security
system is triggered by an open door for three full cycles, the system will
bypass the doors until the trigger ceases.
© 2008 Directed Electronics. All rights reserved.
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