-=> 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 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.



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