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Hood Switch
The hood switch is connected to the LIN bus via the siren using the Blk/Gry wire.
This input is normally open (NO) and triggers the alarm when connected to ground, i.e. when
the hood is opened.
Install DEFA Hood Switch. This should be installed in such a position as to make it inaccessible
from either the underside or the front of the car. The switch should be placed in the switch guard
enclosure to prevent manipulation of the switch.
CAN-bus (P5)
If the car incorporates a CAN-bus system it is possible to connect most parts of the alarm system
using this bus. It is then possible to omit separate door, hood, boot and ignition connections. In
most cases the original remote control can be read using this bus as well.
The system has to be programmed using the DEFA Express PC program to take advantage
of the CAN-bus, since every car is individually adapted to the alarm system. The connection
point in the car is referred in the car specific installation guide.
Control Inputs (P4)
On cars with original remote controls that lacks CAN-bus, or where the CAN-bus can not be
used for reading the remote control data, these inputs can be used to control the alarm system
using the original remote controls.
The system has to be programmed using the DEFA Express PC program to take advantage of
the control inputs, since every car is individually adapted to the alarm system. The connection
point in the car is referred in the car specific installation guide.
Outputs (P2)
There are 7 different outputs signals which can be configured individually.
- 2 active low ( ground , max 1,5 A )
- 2 active high ( same as input voltage, max 1A )
- 2 active high ( same as input voltage, max 10A )
- 1 relay ( max 25A )
To control the output signals there are 13 different functions.
These are:
Hazard
– to control the direction lights using the hazard switch.
Sound
– to control a different sound unit than the original DEFA sirene.
Pager
– a 30 second pulse when the alarm is triggered.
Light pattern
– to control the direction lights when using DEFA remote.
Start Relay
– active or not active, most often used to control the relay
(see “Starter Kill” chapter).
Ignition
– active signal when the ignition is on.
Lock
– a pulse when the alarm changes from disarmed to armed status if DEFA
remote is used.
Unlock
– a pulse when the alarm changes from armed to disarmed status if
DEFA remote is used.
ENGLISH
