Beacon Installation Position
• Determine beacon installation position but do not fasten it in place until all wiring is complete.
• Determine the best location for the beacon – a strong flat surface that can be drilled to accommodate
the mounting holes is ideal. Any spot where the beacon can be fastened in place with plastic cable ties
is suitable.
• For the 6600H with an external antenna, under a seat is often a suitable location for beacon installation.
Be sure it is not close to any heat sources or areas that experience moisture or vibration. The beacon is
not waterproof or weatherproof and should always be installed in the passenger compartment of the
vehicle.
• The 6601H has an internal antenna contained within the beacon housing. It is therefore important that the
top face of the beacon (the side with the large label) is facing the sky with no metallic obstruction. These
models are ideally located under the dashboard, and the same guidelines for installing an external
antenna (described above) are applicable.
• Visibility of the indicator LEDs will be useful for testing and troubleshooting.
Connect Power and Ignition Sense
The power harness included in the installation kit contains 14 wires, 3 of which are bundled together. The bundle
contains the 8-30V constant Power (Red), Ground (Black), and Ignition Sense (White) wires.
Notes
• Connect the wiring harness to the power and ignition source, as well as any I/O sources (if used), before
attaching the harness to the beacon.
• If wiring harness wires need to be extended, use the same gauge wire and solder the extension wire on,
then insulate with heat shrink tubing or electrical tape.
• Ensure that no wires are routed near heat sources.
Power Connection Instructions
• Connect the Black (Ground) wire to battery negative or the vehicle chassis – this wire MUST be connected
first, before the power or ignition sense wires. Be sure the grounding screw is not painted or coated with
an insulating material.
• With the vehicle’s ignition turned off, use a multimeter to assist in finding a suitable, constant 8-30V power
connection point – directly to the vehicle’s battery may be best. Important note: The red (power) cable
is configured with an in-line 3-amp fuse. This fuse must be installed as close as possible to the primary
power source connection.
• Ensure that any wires in the wiring harness that are not to be connected do not come in contact with
power, ground, or any other voltage. Insulate them with electrical tape.