28 Dräger Interlock 5000/7000
Installation
3.4.7 Connecting the positive supply lead
1. Locate suitable connection position in the positive supply lead
(terminal 30) of the ignition-switch cable harness ensuring
adequate cable has been left for termination of the positive supply
lead (red) on the control unit.
2. Connect the positive lead from the ignition switch cable harness to
the positive connecting cable on the control unit (red) to ensure
correct contact.
3.5 Connecting the horn and headlights
(only Interlock 7000)
Special regulations may require the device to be connected to the horn
and/or the headlights. If this is the case:
1. Determine the activation method of horn and/or headlights as
appropriate:
+12 V/24 V or earth.
2. Locate suitable connection positions and connect horn according
to the connection scheme to the horn relay of the device
(connections 3, see Chapter 2.2 on page 22), or connect
headlights in the same way as appropriate to the headlight relay
on the device (connections 2, see Chapter 2.2 on page 22).
If the position of the vehicle fuse is not known: install an additional
fuse in the input cable of the instrument, if required.
NOTICE
Some vehicles have positive wires whose current is switched
off some time after the vehicle is locked. Always use a positive
wire which is constantly under voltage, as otherwise the buffer
battery in the control unit will be drained.
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