The Main Port (S.BUS)
The 4 pin main port is used as the Revolution‘s (Revo) serial port. You use this port to connect to your SBUS FrSky receiver. The pin-out of the cable is shown in the table below. You will most likely need to build the cable and the signal wire color can vary. It’s easy to do just pay attention to the pin-out and double check before powering up.
RaceFlight Receiver Config:
Connect your Revo to RaceFlight and configure it to use the SBUS receiver.