Re: Opto Isolators & Parallel Ports

Try opto22 or omega, both have web sites, but hang onto your wallet.

Bill Martin

PTENGIN@... wrote:

>
> From: PTENGIN@...
>
> In a message dated 8/3/99 6:11:01 AM Hawaiian Standard Time,
> dhowland@... writes:
>
> << From: "Tim Goldstein" <timg@...>
>
> Being electronically challenged, I thought I would post tot he list and see
> if anyone can help me to understand how to optically isolate the parallel
> port.
>
> Thanks,
> >>
>
> Tim,
> I'm wondering if anybody out there knows of a parallel output card that is
> pre-opto isolated. A plain Jane card is ten or twenty dollars, I can't see
> how a pre-isolated one could cost much more. Maybe the specialty I/O card
> makers have something we can afford. Otherwise, maybe Dan or Tom could set up
> a kit or ready made version for the group...
> Peter
> BTW, many of the commercial step drivers have isolated inputs, it would be to
> then protect the cables themselves and to isolate input lines.
>
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