PicoNet.1 Physical LayerThe physical layer is one bidirectional open-drain line pulled up to 12-36V using a 1KOhm resistor.
Four symbols can be transmitted varying the time the bus is asserted down using an output mosfet:
- 15ms down followed by 45ms up
- 45ms down followed by 15ms up
- 90ms down followed by 30ms up