CloudLink V1.4 Wiring Diagram

FuelCloud Hardware Power In / Power Out

FuelCloud piggybacks power off of the AC input. Your wiring configuration will depend on whether the pump runs on AC or DC power. For use with DC applications a Class 2 power supply is required for the board’s power.


DC input requires ~12V DC. Attached positive power to DC+ (terminal 3) and ground to DC- (terminal 2) as demonstrated on the graphic to the right.

For output power, attach the load positive load wire to DC+ output (terminal 28) and ground to DC- (terminal 29).

The CloudLink hardware accepts up to 5 pumps or loads. For each additional pump please connect the input and out power on channel 2 through 5.


AC input requires 80-240V AC. Attach Line power to L/DC+  (terminal 3), Neutral to N/DC- (terminal 2), and Earth Ground to (terminal 1).

For output power, attach the load Line wire to the L/DC+ output (terminal 28) and load Neutral to N/DC- (terminal 29).


The CloudLink and CloudBox must be connected together through RS-485 in order to communication. Both hardware units have 3 wiring terminals that must be connected to each other. A, B, and GND on the CloudLink need to be connected to A, B, and GND on the CloudBox.

CloudLink Board:


CloudBox Board:




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