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© 2001 directed electronics, inc.
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Control Unit:
The "brain" of your system. Usually hidden under-
neath the dash area of the vehicle. It houses the microprocessor
which monitors your vehicle and controls all of the system's
functions.
Fault-Proof Starter Interrupt
: An automatic switch controlled by
the security system which prevents the vehicle’s starter from
cranking whenever the system is armed. The vehicle is never
prevented from cranking when the system is disarmed, in Valet
mode, or should the starter interrupt switch itself fail. Your
system is ready for this feature, however installation may require
additional labor.
Input
: A physical connection to the system. An input can be
provided by a sensor, pinswitch or through an existing system in
the vehicle, such as ignition or courtesy lights.
LED
: Red light mounted somewhere in the vehicle. It is used to
indicate the status of your system. It is also used to report trig-
gers and faults in the system or sensors.
Shock Sensor
: This is a sensor mounted in the vehicle that is
designed to pick up impacts to the vehicle or glass.
Siren
: Noise generating device usually installed in the engine
compartment of the vehicle. It is responsible for generating the
"chirps" you hear, as well as the six tones you hear while the
alarm is triggered.