Ok, so the only combination I could get to work using SBUS to the X10+ is a Futaba S-FHSS transmitter talking to a Futaba receiver that is outputting SBUS to the X10+. I reckon a Futaba FASST transmitter/receiver would also work but I don't have that equipment.
It must follow that the Futaba transmitter and receiver respect the proper SBUS protocol, frame rate and timing, and consequently the X10+ remains happy talking SBUS. The Taranis on the other hand uses a frame rate for its XJT-D16 output to the XPS-J1 module that is not SBUS compatible. Also, when the Taranis outputs PPM to the XPS-J1 module it uses a 22.5ms frame rate and that also results in a non-standard SBUS frame rate at the X10+, making it blink.
For years I used a Taranis talking SBUS directly to a DragonLink transmitter module which in turn talked to a DragonLink receiver. The DragonLink receiver output SBUS to a Pixhawk flight controller. It is possible that with the Taranis talking SBUS (not XJT-D16) directly to the DragonLink transmitter module, the SBUS protocol was correct and intact by the time it went out of the DragonLink receiver and into the Pixhawk. (I could not find any place in ArduPlane that logs errors on the SBUS connection into the Pixhawk - there may have been some but the servos worked without notchiness even in manual flight mode and I flew successfully with the system.)
In conclusion:
- I will use Xtreme protocol for XPS Nano and RFU receivers to talk to the X10+
- I could also use a Futaba transmitter and Futaba receiver that outputs SBUS to an X10+ as well
- I cannot use the Taranis and XPS-J1 transmitter module in a setup that requires an SBUS output out of a Nano or RFU
It must follow that the Futaba transmitter and receiver respect the proper SBUS protocol, frame rate and timing, and consequently the X10+ remains happy talking SBUS. The Taranis on the other hand uses a frame rate for its XJT-D16 output to the XPS-J1 module that is not SBUS compatible. Also, when the Taranis outputs PPM to the XPS-J1 module it uses a 22.5ms frame rate and that also results in a non-standard SBUS frame rate at the X10+, making it blink.
For years I used a Taranis talking SBUS directly to a DragonLink transmitter module which in turn talked to a DragonLink receiver. The DragonLink receiver output SBUS to a Pixhawk flight controller. It is possible that with the Taranis talking SBUS (not XJT-D16) directly to the DragonLink transmitter module, the SBUS protocol was correct and intact by the time it went out of the DragonLink receiver and into the Pixhawk. (I could not find any place in ArduPlane that logs errors on the SBUS connection into the Pixhawk - there may have been some but the servos worked without notchiness even in manual flight mode and I flew successfully with the system.)
In conclusion:
- I will use Xtreme protocol for XPS Nano and RFU receivers to talk to the X10+
- I could also use a Futaba transmitter and Futaba receiver that outputs SBUS to an X10+ as well
- I cannot use the Taranis and XPS-J1 transmitter module in a setup that requires an SBUS output out of a Nano or RFU