On Friday 28 December 2012 02:35:12 Roland Jollivet did opine:

> On 28 December 2012 05:05, Gene Heskett <ghesk...@wdtv.com> wrote:
> > On Thursday 27 December 2012 22:00:41 Dave did opine:
> > > Gene, I know you wanted to derive power from an RS232 port, but why
> > > not do a port steal from a USB port.
> > > 
> > > Plenty of ma at 5vdc regulated.
> > > 
> > > Also, there are lots of TTL to USB and RS232 converters already
> > > assembled on Ebay - very cheap.
> > > 
> > > Dave
> > 
> > Cheap until you check the shipping... :(
> > 
> > I have now arrived at the conclusion that the pin I reserved for one
> > of the homing switches is of far less utility than this, so since I
> > never wired it up anyway, it will get re-purposed for this.  But I
> > need some slightly warmer weather before embarking on that project.
> > 
> > Thanks Dave.
> > 
> > Cheers, Gene
> > --
> 
> Why don't you just open the case and bring a 5V wire out from the PSU
> harness? If it's a long stretch, then use the 12V line and put a 7805 at
> your end.
> 
> Roland

I already have locally regulated 5 volts available on my terminal strips, 
so the 48" run to the device is not a huge problem.

Thanks Roland.

Cheers, Gene
-- 
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Delta: We never make the same mistake three times.   -- David Letterman
I was taught to respect my elders, but its getting 
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