AVR-Chat

--- In AVR-Chat@yahoogroups.com, "Chuck Hackett" <egroupscdh@W...> 
wrote:
> > From: Dave Mucha
> > > 
> > > Since I'm protecting an analog signal line here I assume optos 
are
> inappropriate
> > > (at least I've only seen ones suitable for digital, as opposed 
to analog,
> > > links).  
> > 
> > 
> > If you are protecting an analogue line, why not make it into 
> > a digital signal and then use an opto  or even fiber optic ?
> 
> In this particular case I think it would be overkill but I grant 
you that it's
> one approach.
> 
> Cheers,
> 
> Chuck Hackett


It may be, but the unit is monitoring the voltage of a plasma 
cutter.  the noise will effect any unprotected anything electronical 
in the area.

The fiber optic was just to eleminate any potential problems.  And, I 
have a friend who works for the phone company and can get me a couple 
feet now and again.

I'm still looking for network installers who trash the end of a roll 
with only 20 or so feet left.  

Dave






> "Good judgment comes from experience, experience comes from bad 
judgment"
> 7.5" gauge Union Pacific Northern (4-8-4) 844
> http://www.whitetrout.net/Chuck