Viper 3903V Owner Manual - Page 11

The siren will sound and the parking lights will flash for 30 seconds. To stop Panic Mode at any time, press the unlock button on your factory transmitter. note: The system can also be programmed so that pressing the lock button more than once within three and five seconds will activate an optional accessory. If the unit is programmed to activate an optional accessory. Nuisance Prevention Circuitry® Your system has Nuisance Prevention Circuitry® (NPC®). This circuitry prevents annoying repetitive trigger sequences due to faulty door pin switches or environmental conditions such as thunder, jackhammers, airport noise, etc. Here's how it works: The alarm triggers three times. Each time, the same sensor or switch is triggering the alarm. The three triggers are within 60 minutes of each other. Your system will interpret this pattern of triggers as false alarms. After the third trigger, your system 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 is continuously triggering will remain bypassed. Doors are covered differently: If the alarm is triggered by an open door 8 © 2007 Directed Electronics-all rights reserved