Re: [CAD_CAM_EDM_DRO] parallel port surge protector ?

It occurs to me that we are rapidly reaching the point where a
motherboard may be cheaper than a dedicated board full of
optoisolators. Of course if parallel ports go out of fashion
we may need to conserve the boards that still have them.

And building optoisolators into the amps is probably still cost effective.

Chris

> Hi Rab,
>
> Might be a good idea. I have a "parallel line extender" from Bravo
> communications on my machine with MaxNC 4-phase, because there are no
> opto-isolators. IMO, opto-isolators would be better.
>
> Alan KM6VV
>
> rab@... wrote:
> >
> > APC have a parallel port surge protector (Part no. PSP25),
> > would this be any use to those of us driving machines via our
> > parallel ports, could it prevent damage to our computers ? Or would
> > the protection be too limited to be usefull ? I'm thinking
> > particularly of laptops where you don't have the option of plugging
> > in a port expansion card as many suggest to protect your motherboard.
> >
> > details at:
> > http://www.apc.com/resource/include/techspec_index.cfm?
> > base_sku=PSP25&language=en&LOCAL.APCCountryCode=US
> >
> > or if that don't work try APCs homepage www.apc.com
> >
> > Rab
>
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--
Christopher C. Stratton, stratton@...
Instrument Maker, Horn Player & Engineer
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