not strictly a plc question, but wondered if anyone could help, i want to connect my laptop usb or serial port to a rs485 port on a danfoss vlt2800 vsd, ive found a usb to rs485 cable which requires the user to terminate the 485 end as required, which in my case would be 9pin subD, anyone know the pinout for this port or is it a standard i've missed,find it strange danfoss don't seem to sell a cable for this.