28 Installation instructions | Dräger Interlock
®
5x00/7x00
| Installation
4.5 Connecting the horn and headlights
(Interlock 7x00 only)
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 the horn and/or headlights as
appropriate: +12 V/24 V or earth.
2. Locate suitable connection points and connect the horn according to the
connection diagram to the horn relay on the device (connections 3 (see
"Description of the connection leads on the control unit", page 21)), or
connect the headlights in the same way to the headlight relay on the device
(connections 2 (see "Safety-related information", page 19)).
3. If the position of the vehicle fuse is not known: fit an additional fuse in the
supply line to the device, if required.
Connection alternative A
Connection alternative B
4.6 Connecting the external indicator light
In special cases (for example with restricted aural capability) it may be
necessary to install an external indicator light in the area directly visible to the
driver.
1. Locate suitable mounting position directly visible to the driver but not
hindering the driver (for example on top of the cover of the steering column
or above the instrument panel).
2. Mount indicator lights and connect to the device (connections 12 LED+ and
13 LED- (see "Description of the connection leads on the control unit",
page 21)).
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