I have been trying to get my serial interface cable to work without success... ??? .
I have built the cable as shown at this site with the slight modifications as shown at www.customelectronics.co.uk. So far I have not been able to get it to work.
When the 9 pin serial connector is plugged into the computer I have checked the voltages across pin 5 to to pin 8 and also pin 5 to pin 6. Both these voltages are at -8.5V. Should this be the case..??
I have windows98 se and the transmitter is FP-T6NFK.
Friends at work who work in electronics have checked out the circuit itself and it looks fine.
Does anyone have any suggestions to try and fix it to work correctly.??
Thanks for any help.