The Ground Loop Trap: Why “Safe” Wiring is Killing Your Serial Ports
You’ve seen it before, and if you haven’t, you’ve definitely smelled it. You finish a clean installation of a new serial controller. You’ve followed the manual to a T: the cable is shielded, the distance is well within the 15-meter RS-232 limit, and every piece of equipment is properly plugged into a three-prong, grounded outlet. … Read more