Nuisance Prevention Circuitry - Viper 446 Series Owner's Manual

Viper car security owners guide

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nuisance prevention

Your system has Directed's Nuisance Prevention

(NPC

). It prevents annoying repetitive trigger sequences due to

faulty door pin switches or environmental conditions such as

thunder, jackhammers, airport noise, etc.

Example

If the alarm triggers three times within a 60-minute period and

each time the same sensor or switch triggers the alarm, NPC

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 system while it is being

bypassed, the 60-minute bypass period will start over. This

ensures that a sensor that continually triggers will remain

bypassed.

Doors are covered by NPC

by an open door for three full cycles, the doors will be bypassed

until the trigger ceases.

note: Arming and disarming the system does not reset this

function.The only ways to reset a bypassed zone are for it

to not trigger for 60 minutes, or to turn on the ignition. If

testing your system, it is important to remember that the

NPC® programming can cause zones to be bypassed and

appear to stop working. If five chirps are heard when dis-

arming, NPC® has been engaged. If you wish to clear the

NPC® memory, turn the ignition key on.

NPC

is programmable. See Programming Options section of this

guide.

circuitry

differently; if the alarm is triggered

Circuitry

will

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