Yes scotty you are correct the 5/03 is RJ45 etc. I was in a bit of a rush when i replied. Didnt realise i had put 5/03. I know exactly what you mean with the 1747-PIC convertor, no end of problems with same. We recently had contractors installing a new system and the guys were using the USB device. Said it was far better than the PIC device. Think its expensive though??