Re: Interface for CNCPro, etc.

I would prefer a DB-25 out the back to a separate opto-isolated breakout
board with a connectorized terminal strip... or optos in the pc plug-in
board, and DB-25 to a standard breakout board. (most of the DIN terminal
strip makers like Phoenix make DB-25 to terminal strip boards for reasonable
$$)

It is hard to beat the price of a generic parallel port interface card, so
the external buffer/ts board might make the most economic sense. Keeps the
fire out of the box too.

Add some diagnostic LED's while you are at it!


for what it's worth...

Jim Fackert

----- Original Message -----
From: Harrison, Doug <dharrison@...>
> Suppose I design a card that will fit in one ISA or PCI slot that has
> optoisolation, 5V isolated supply for outputs and a screw terminal strip
> that sticks out the back for direct connection to amps, switches and aux
> I/O.