Viper 7900 Owner Manual - Page 44

note: sensor inputs that are triggered too many times will be bypassed using a feature called NPC for Nuisance Prevention. ➜ nuisance prevention circuitry This diagnostic feature monitors the sensor inputs for excessive trig‑ gers and bypasses them automatically to avoid annoying repeated trig‑ gers. how it works If any sensor input is triggered 3 times within a one hour period, it will be bypassed for one hour. The input will still be moni‑ tored, but the alarm will not sound if a trigger is detected.. If the input is triggered while bypassed, the one hour bypass timer will start over. This will assure that a repeatedly triggered input will remain bypassed until stable for at least one hour. resetting the sensor input A bypassed sensor input will reset automatically if not triggered for one hour. To reset a bypassed sensor input manually the igni‑ tion must be turned on, disarming and rearming the alarm will not reset a bypassed input ➜ system status chirps The siren will chirp when arming/disarming the system. The pattern of chirps will audibly report the system's status as described next. 40 © 2006 directed electronics-all rights reserved