Velleman K3504 Illustrated Assembly Manual - page 9
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Connecting the point DIS to the + should extinguish the LED.
Interrupting the connection should restore the flashing state after 2 seconds.
This delay time, which is the step out delay time or in other words the delay time between
the point of time the voltage disappears from the point DIS (coming from the ignition lock
or from the remote control) and the rearming of the alarm, can be made longer with RV1.
Remark: when the circuit is first powered on, the delay times may deviate.
This is caused by the fact that the circuit first has to stabilize.
The alarm, when armed, can be activated e.g. by switching the courtesy light (however the alarm DOESN'T react upon
SWITCHING OFF loads). Before the relay, which controls the alarm signal, gets activated, you will hear a buzzer tone for 2
seconds so that you have time enough to switch off the alarm. This "step in delay time" can be made longer with RV2.
Remark: To use the alarm together with the infrared code lock, it is advisable to set the step in and out delay times to
their minimum. Together with the alarm you could also control the central car-door locking (possibly with an additional
relay depending on the type of car-door locking).
Test & usage
Fig. 2