Re: New in this - more on paralle port interfaces

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "viewpanel1"
<viewpanel1@y...> wrote:

> Help
> I think I just started backwards. I have the enroute software made

by

> Scanvec, and want to build a cnc router table 4'x8' . Is there a
> parallel interface board able to run the motors and other hardware
> compatible to this software. Also suggestion routers building kits
> are welcome
>
> Regards Jose

Hi Jose,

The parallel port interface is often no more than a easy way to
connect the pins from the cable to the connections on the driver
boards.

typically it is a 25 pin D connector in so the cable has a place to
get connected, and a bunch of screw treminals to land your other
wires to. some people use the little adapter or jumper boxes you can
get from Radio Shack that have a little PC board with solder holes.
they solder those holes to wires that go to the rest of the system.

Then there are cards that are a little more elaborate.

then cards that have opto isolators for the inputs and eihter relays
or darlingtons for the outputs that are not to the driver cards.

Dave