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[Discuss] Great talks last night, however...

One of the goals last night was to raise the question of standards for DC
interconnect (different voltages / amps / conditions) - great to see the
ideas and sources here. Good idea to learn from the good work done by the
HAM community ...

Solar installations have lots of different issues of voltages / amps /
weather and usage conditions / loads ... and it's so affordable (eg. via
RPi) to connect and manage information from these systems, it would be
great to get the DC interconnect standards well-known (and if they don't
exist in key areas figure out how to propose new DC standards.)


On Thu, Jul 20, 2017 at 3:52 PM, Jerry Feldman <gaf.linux at> wrote:

> One example I would like to post. This was back in my San Antonio days. In
> those days most connections were via phone or dedicated phone lines with
> speeds up to about 9,600 bps. The phone company set up a dedicated line for
> a professor friend of mine at San Antonio College. The dedicated line was
> supposed to be isolated. After questioning the technician, he applied AC to
> the circuit. Ma Bell was not very happy..
> On Thu, Jul 20, 2017 at 10:15 AM, Bill Bogstad <bogstad at> wrote:
> > I have to repeat my negative reaction to the idea that one would
> > consider using polarized AC plugs/sockets for low voltage DC
> > interconnects.  That is probably as bad an idea as the
> > AC Power over Ethernet adapter in the attached JPEG.   Other examples
> > of this class of devices
> > can be found at:
> >
> >
> >
> > Bill Bogstad
> > _______________________________________________
> > Discuss mailing list
> > Discuss at
> >
> >
> --
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> Jerry Feldman <gaf.linux at>
> Boston Linux and Unix
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