A receiver that needs inverted SBUS input should be connected to the pad marked SBUS (located on the bottom part of the FC).
]]>Should be the same as SBUS input (marked D/S/P).
]]>Yes, it should be possible. Use TX1 RX1 pads on the bpttom side of the FC.
]]>Sure it should work. It has the same SBUS output as FrSky XM+ that I’ve used as receiver.
]]>Unfortunately no manual is available for this FSD F411 FC.
If you are trying to connect r-xsr receiver with S.Port telemetry, then you should use uninverted pad (the pad marked P) on the R-XSR.
Also you could flash the RX firmware with the F.Port and connect the mentioned uninverted S.Port signal from the receiver to the TX1 pad (this is uninverted input) on the underside of this FC. Select FPort as serial receiver protocol in BF configurator.
This is probably the easiest way.