On Thu, 24 Dec 2020 08:10:00 +1300
nospam.Kurt.Weiske@f1.n770.z16210.fidonet.org (Kurt Weiske) wrote:

> -=> Deloptes wrote to Ahem A Rivet's Shot <=-
>
>  > When I had FTTH installed here the first thing they did (after
>  > erecting a couple of poles) was run copper to the house with a POTS
>  > service on it, then a week or so later another crew turned up and
>  > installed the fibre. The POTS service is active but never used. It
>  > would make a lot more sense if the fibre termination was powered by
>  > the 50V on the POTS line but it's powered by being plugged into the
>  > mains.
>
>  De> May be I am understanding something different under POTS than you
>  De> guys.
>
>  De> Plain old telephone service, or plain ordinary telephone system, is a
>  De> retronym for voice-grade telephone service employing analog signal
>  De> transmission over copper loops (Wikipedia)
>
>  There's a 48vDC current running across the copper pair in a POTS
>  line. It's called talk battery or loop current. I think the original
>  poster was talking about powering the fiber terminator over it.

 I was suggesting that since they insisted on running both (I only
wanted the fibre) it would make sense to power the fibre terminator from
the loop current and give the fibre the same kind of reliability that the
copper has.

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