On 24/12/2020 19:34, Ahem A Rivet's Shot wrote:
> 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.
>
Far too sensible to ever be adopted...
--
“when things get difficult you just have to lie”
― Jean Claud Jüncker
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