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General Mach Discussion / Re: computer keep on switching of when the plasma ark(spark)
« on: November 27, 2013, 02:01:31 AM »Quote
Interesting Tweakie, what about the signal grounds like pins 18-25 on a DB25 connector? can that be grounded at both ends? I hope.
Tony
Hi Tony,
Yes, the 18-25 is common signal GND between the PC and the controller but remember that this is signal GND, it is not Earth.
Tweakie.