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Page 4
Disable wiring:
The use of a disable switch is highly reccomended so that
emergency vehicle drivers do not need to remember to shut off
their emitter when arriving at the scene. Without using this
feature, nearby intersections may be unnecessarily held in
preemption by vehicles at the scene.
The disable function is entered when the WHITE wire transitions
either from +12V DC to ground or from a floating state to ground.
When installing the emitter the installer should provide sufficiant
wire/cable length to allow the end user to connect the WHITE wire
as discribed.
Indicator light:
The use of an indicator light either in a switch or stand alone is
highly recomended. The indicator light, when controlled by the
GREEN wire will allow the user to determine if the emitter is
operating normally (steady indication), in disable mode (Flashes
once every 2 seconds), has failed (flashes 2 times per second).
The GREEN wire provides a DC return for the indicator light.
When +12V DC is provided to one side of an indicator and the
GREEN wire is connected to the other side (or to the light terminal
of a lighted switch, the emitter will control the behavior of the
indicator light .
When installing the emitter the installer should provide sufficiant
wire/cable length to allow the end user to connect the green wire
as described above.
WARNING! All customer supplied wires that connect to the positive terminal of the battery must be sized to supply at least 125%
of the maximum operating current and FUSED at the battery to carry that load. DO NOT USE CIRCUIT BREAKERS WITH THIS
PRODUCT!
Caution: Permanent mounting of this product will require drilling. It is absolutely necessary to make sure that no other vehicle
components could be damaged by this process. Check both sides of the mounting surface before starting. If damage is likely,
select a different mounting location.
IMPORTANT! It is the responsibility of the installation technician to make sure that the installation and operation of this product
will not interfere with or compromise the operation or efficiency of any vehicle equipment!
IMPORTANT! Before returning the vehicle to active service, visually confirm the proper operation of this product, as well as all
vehicle components/equipment.
RED
GREEN
Serial Communication (A)
Indicator Light
1 Amp Fuses
WHITE
BATTERY
BLACK
GREY
BLUE
Serial Communication (B)
WIRE FUNCTIONS:
GREY
WHITE
ORANGE
RED
BLUE
BLACK
GREEN
/
/
/
/
/
/ DC
/
Serial Communication (B)
Disable (Input)
Range Setting Enable
+12V DC
Serial Communication (A)
Ground
DC Return for indicator light