Hey guys, we have a custom cable that runs between a Silvus radio and a Pixhawk PX4. We believe that the custom board is acting as a serial converter / RS232 transceiver - but are having issues and want to create a replacement … or if not possible, bypass it … so we can confirm if this part is the cause of our connection issues.
Does anyone know of a replacement part we could use?
The chip has the following written on it “SIPEX 3232EE 1837L H1N76” and I think its this one:
There are 9 wires used from the cable coming out of the silvus radio primary connector:
- 4 are the 2 x ethernet pairs - these connect to the RJ45 connector in the fuselage, for connecting directly to the radio via ethernet. This has been tested and works.
- 2 are power to the silvus radio - assume these are ok as the radio powers up and works
- 3 go to the small circuit board (serial converter board) - white, light-grey, light-green
- Grey = RS232 Rx
- White =RS232 Tx
- L/Green = Gnd
the other side of the circuit board has 4 x wires
- 2 are power (brown & red)
- Brown = Ground
- Red = VCC
- White = RS232 Tx
- Yellow = RS232 Rx