Anyone familiar with graupner TX and RX's

i have a new project which is to convert a boat to full autonomous with the pixhawk, im used to working with taranis and frsky…

this has a grapner MX20 tx and a GR24 RX … how do i connect them sbus? the rx is capable according to the specs of sbus but for the life of me i cant see why or how to plug it in.

any and all help greatly apreciated!

I believe you can set it when the RX is binded and on the radio go to the RX settings and define output as SBUS, (?) and the output port 5 becomes a SBUS. You’d probably need to update the RX firmware. I have to plug in one to recheck things but it is easy.