they might have different ground systems. If so, grounding both ends might produce a LARGE current through the cable, possibly enough to be hazardous.
OB_Ignorant_Question: Is that the reason why RS232 DB25 has both pin 1 and pin 7?
they might have different ground systems. If so, grounding both ends might produce a LARGE current through the cable, possibly enough to be hazardous.
OB_Ignorant_Question: Is that the reason why RS232 DB25 has both pin 1 and pin 7?