Put new wires on my machine and hooked them up exactly the same but for some reason my slave (A) will only move in one direction with Y other wise the A stands still and the Y tries to move. If I swap the wires I get the same result only in the opposite direction. I have a g540 and use Mach3 I have tried every combo of dir. low active checking and un-checking, step low and any other combo. My slave axis is still set up for Y and A. I was having an issue with pin 8 having blown out one of the female connections but that was on my x so it shouldn't effect my y/a plus it hasn't effected any of the new db9 cables.