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1. Connect the CAN Coupler to the Device Power Cable.
2. Find a suitable location along the vehicle J1939 network backbone to insert the CAN
Coupler. The CAN Coupler MUST be installed in the vehicle cab. It cannot be exposed to
moisture or inclement weather conditions.
3. Untwist approximately 2 inches (5 cm) of the vehicle’s J1939 wires, which are always a
green and yellow twisted pair.
4. Insert the vehicle’s J1939 wires into the CAN Coupler with the yellow wire on the CAN-
HI (Y) side and the green wire on the CAN-LO (G) side. Ensure that the wires are
secured in the tabs provided and properly oriented.
5. Place the cap on the CAN Coupler.
