Directed Electronics 990 Automobile Parts User Manual


 
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2-2 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 considered a nuisance and
the vehicle is towed away.
2-3 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.
2-4 VALET DISARM 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.
2-5 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.
2-6 IGNITION CONTROLLED DOME LIGHT SUPERVISION ON/OFF: If turned on, the system will turn on the dome
light for 60 seconds when the ignition is turned off. The optional dome light supervision feature must be installed
as described in the Wire Connection Guide.
2-7 UNLOCK OUTPUT—1, 2 PULSES: This will program the unlock output to one or two pulses. When the double
pulse unlock feature is turned on, the BLUE door lock harness wire will supply two negative pulses instead of a
single pulse. At the same time, the GREEN door lock harness wire will supply two positive pulses instead of a
single pulse. This makes it possible to directly interface with double pulse vehicles without any extra parts for
unlock and lock outputs (see below).
2-8 LOCK OUTPUT—1, 2 PULSES: This will program the lock output to one or two pulses. When the double pulse
lock feature is turned on, the BLUE door lock harness wire will supply two positive pulses instead of a single
pulse. At the same time, the GREEN door lock harness wire will supply two negative pulses instead of a single