Sony F55

The HR10 socket on the Teradek RT Receiver and the Sony F55 battery plate is the same except pins 2/3 are reversed

1-1 
2-3 
3-2 
4-4

Once the cable is assembled, it'll work regardless of which end plugs into the camera/ receiver

Also, If your Teradek RT system is MK3.1 generation, you can plug the cable into the PWR socket and it will do power plus run/stop on the same wire.

You must select Sony F55 from the Camera menu on the Controller (handset) for this function to work.