8
Connecting Power to a Junction Box
1. Starting at the 7-way connector at the front of the trailer, follow the
wiring harness until you reach/nd the junction box. Remove the
cover of the junction box to expose the wiring. Find the blue ABS
power wire.
2. Using the supplied ring terminals, connect the blue power wire on
the end of the trailer scale power cable to the blue ABS wire in the
junction box. Connect the white ground wire on the end of the scale
power cable to the white ground wire in the junction box.
3. Route the power extension cable along the frame of the trailer
toward the location where the scale is installed. If possible,
route along an existing wiring harness. If the trailer has a sliding
suspension you must use an existing wiring harness or umbilical to
avoid damaging or breaking the cable.
4. Secure the cable loosely to the frame using zip ties.
5. Connect the end of the power extension cable to the power interface
cable. Make sure the cable is under no strain and is not bent.
Alarm Installation
Insert the Alarm cable into Port 2 on the back
of the scale. The gray, sealed wire from the
main wiring harness is the alarm circuit output.
It can be connected to any self-grounded
alarm device with a current draw of 1.0 amps
or less. The alarm voltage will be the same as the vehicle output voltage.
You must install a relay for any device that draws more than 1.0 amps. Do
not disturb the sealed end of the wire if alarm is not installed.
When using an alarm, connect the alarm output wire and the ground
return wire to the desired device. Ensure that any unused alarm wires are
electrically insulated.
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