13
Connection
4. Connection to the k3504 car alarm :
Fig. 3.0
For connection to the K3504 car alarm the DIS points of both
circuits must be connected together. In this case the "DIS" con-
nection of the car alarm must not be connected to the contact
lock. For remote controlled operation of the car alarm, the
SWITCHING TIME (IN and OUT) can be set to minimum. The
free relay contacts can be still be used to operate the central
locking system for example.
For indication purposes, LED LD1 can be mounted somewhere
on the dashboard using the LED holder supplied. When the relay
is closed the LED will flash, when open it is continuously lit.
NOTE
The circuit can also be installed in a plastic housing.
For installation in the car, the circuit can be mounted some-
where under the dashboard, and preferably in a place where
there are few metal parts. It may be the case that after installa-
tion in the car, the circuit will have to be retuned. This is be-
cause of the influence of metal parts in the vicinity of the circuit.
Because of the earth screen in a car, the transmitter/receiver
range will be approximately halved which in most cases is more
than sufficient.
A
C
COM
NO
NC
GND
VA
VB
DIS
K6707
DOOR LOCK
SYSTEM
ACCU
-
+
+
-
DIS
NO
COM
LD1
LD1
K3504
