Usbcnc

[AdCNC]

How i think of it is NPN = PN 24v(P) dropping to 0v(N) when outputting PNP = NP 0v(N) rising to 24v(P) when outputting.

I would ditch the CIB and get yourself one of these Dsub25

Then you can wire direct to your stepper drives, im using servo drive/motors but the same applies to you.

[Jonathan]

Do you have any idea what PNP and NPN mean?

Sounds like types of transistors to me!

I would ditch the CIB and get yourself one of these Dsub25

Seems expensive for what it is? I would happily make you one for about half that :naughty:. I have already got the required connectors etc, just a matter of making the PCB which is simple enough.

[AdCNC]

There ya go Ant, Jonathan will knock you one up, winner!