Cube black and orange sbus in or rcin voltage pin

Hardware Pixhawk family
1

Hello,
So I want to know specific details about the voltage of the sbus in or rcin pin from cube black and cube orange. I tried searching in the wiki, but couldn’t find specific information about this pin. I did find that is at least capable of receiving 3.3v but I can’t confirm if can go up to 5v or at least is 5v tolerant.Can anyone help?

2

The supply pins are 5 volts.
The signal pins of (RCin, SBUSin, SBUSout) are protected with a zener and series resistor, and go through a tri-state 3.3v/5v buffer where required.
So they are definitely 5volt tolerant, but would also work OK with 3.3v.

The Spectrum (SPKT) port has a 3.3v supply pin and 3.3v signal pin.

3

is there a document with this information you said?

4

I got that from the circuit diagrams