Re: [CAD_CAM_EDM_DRO] Re: Position counter stop updating....Still there....

[Jon Elson <elson-at-pico-systems.com>]

John Sheahan wrote:

> Can I ask a couple of related questions
>
> Do you ever disable the 26LS31?  (which is what I know the
>  SN75174 as in this part of the world)
>  Better not to here.
>
> Is the pair terminated (ie ~100 ohms across it) at the load end
>   well worth doing!
>   (the pair is the two wires connecting the the A and /A output pins
>    through to the far end)

Oh, very good point!

>
> Is the pair run as a twisted pair?
>   helps, but depends on your wiring.
>
> Do you use a 26LS32 or similar to receive the differential signal?
>   essential

They use something else, but a differential receiver none the less.

Jon