Nuisance prevention, Circuitry – Viper 671XV User Manual

Page 22

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19

© 2 0 0 4 d i r e c t e d e l e c t r o n i c s , i n c .

To enter or exit Valet

®

Mode using the 2-way remote:

1. Open any vehicle door.

2. Press .

3. Press .

4. Press again.

The in-vehicle status LED will light solidly if you are entering

Valet

®

Mode, and it will go out if you are exiting Valet

®

Mode.

The remote responds with the normal arm/disarm notifications

with each remote button press.

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.

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 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

®

differently; if the alarm is triggered

by an open door for three full cycles, the doors will be bypassed
until the trigger ceases.

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