Viper 550 ESP Automobile Alarm User Manual


 
42 © 2000 Directed Electronics, Inc. Vista, CA
2-1 SIREN OUTPUT CONSTANT/PULSED: The system can be programmed to output pulses instead of a continu-
ous output when the system is triggered. This is useful to honk the factory horn in applications where a siren is
undesirable. Remember that the unit is only capable of supplying 1 amp of current. A relay will be required to
interface with most factory horn systems.
2-2 SIREN DURATION 30/60 SECONDS: It is possible to program the unit to sound for 30 or 60 seconds
during the triggered sequence. Some states have laws regulating how long a security system can sound.
When using the TechSoft Programmer or Bitwriter™, the siren can be programmed to sound for any length of time
from 1 second to 180 seconds. Use the right and left arrows or the plus (+) and minus (-) keys on your keyboard
to change the siren duration in 1 second intervals. Holding down the key will rapidly increase or decrease the setting.
The desired siren duration can also be directly entered by using the number keys on your computer's keyboard.
2-3 NUISANCE PREVENTION CIRCUITRY (NPC) ON/OFF: NPC™ stops repeated triggering of the same zone.
If one zone is triggered three times in one hour, that zone is bypassed for one hour, starting from the time of
the third trigger. During that hour, if the system sees a trigger on that zone again, the system resets the one
hour timer. If one hour passes and the zone has not triggered again, the zone is activated and can trigger the
system again. NPC™ only monitors sensor inputs, and does not bypass the door trigger or the ignition trigger at
any time. If NPC™ is turned off, the system will respond to repeated triggers on the sensor inputs and will do so
indefinitely. Some states have laws regulating how many times a security system can trigger before it is consid-
ered a nuisance and the vehicle is towed away.
2-4 PROGRESSIVE DOOR TRIGGER ON/OFF: The system responds to a door trigger input with a progressive
response. When the door is opened with the system armed, the siren will chirp 10 times prior to the full trig-
gered sequence. The door trigger is still treated as an instant trigger and closing the door quickly will not prevent
full triggered sequence from occurring. If the progressive door trigger is programmed off, the full siren output
will occur the moment the door is opened.
2-5 VALET PULSE COUNT 1 TO 5 PULSES: The system can be programmed to count the number of presses of the
valet switch before disarming the security system. The factory default setting is one pulse. The unit can also be
set for two to five pulses.
Ghost Switch option: For added security, the GRAY wire on the two-pin Valet®/Program plug can be connected
to any switch in the vehicle that provides a positive (+) momentary pulse.
2-6 DOOR SENSOR BYPASS CHIRP ON/OFF: This feature controls the error chirp that is generated if the system
is armed with the door trigger active. This is useful in vehicles that have a long dome light delay after the door
has been closed. If the system is armed before the dome light has turned off, the security system will generate
the door trigger error chirp. If this error chirp is not desired, use this feature to disable the door open error chirp.
If the bypass chirp is turned off, no bypass chirp will be generated, even if a door is accidentally left open.
menu #2 - advanced features