David, The cable is 'straight through' in other words pin 1 goes to pin 1 etc. You can test it with the ohmmeter function of any multimeter. I know it's straight through because I made my own after calling Trace. If it is the cable, which I doubt, I do have an unused factory supplied one but I'm not sure where it is & it would take a bit of searching to find it.RegardsJerry 4107 1120