Below is the pinouts for the USB-Serial cable supplied with the Airconsole Adaptor

Pin1 = CTS

Pin2 = DSR

Pin3 = RX

Pin4 = GND

Pin5 = GND

Pin6 = TX

Pin7 = DTR

Pin8 = RTS

When attached to a Beige RJ45 to DB9 Adaptor which we sell, the pins are translated as per below drawing.

For the Null adapter: