hi guys, i have to make up a cable to extend my touchscreen controler. i have the plugs and some 4pair rs232 cable. i have the diagram and it says pin 5 to pin 5 is rs232 ground. i am only using 7 pins so should i use a normal conductor for pin 5 or use the drain wire from the cable shield? if i use a conductor wire should i connect the drain wire to the shells of the plugs and if so how? (cant seem to get the solder to stick) thanks!
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