On 2020-12-23, Chris Green  wrote:

> Deloptes  wrote:
>
>> Ahem A Rivet's Shot wrote:
>>
>>> 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.
>>
>> May be I am understanding something different under POTS than you guys.
>>
>> Plain old telephone service, or plain ordinary telephone system, is a
>> retronym for voice-grade telephone service employing analog signal
>> transmission over copper loops (Wikipedia)
>>
>> Notice "analog signal".
>> Even if you have copper the last 50m or 3km - it does not mean it is POTS on
>> it.
>
> Since the phone hanging on the end it still an analogue device
> requiring 50v DC to ring then the last section *is* still POTS.

Yes, but that power is now coming from a wall wart, backed up by a battery.
Our local telco (Telus) has done a big push to fiber the last few years.
We made the switch not too long ago (and saw our Internet rate jump yet
again, this time up to 88Mbps).  But I always wondered where I'd be if
the power went out.  Recently the power company was doing some major work
and our power was out all day.  I wish I had remembered to check the phone
regularly to see how long the backup battery would last, but it was 4 hours
into the outage before I remembered to dig out a line-powered phone and
plug it in and try it.  No dial tone.

--
/~\  Charlie Gibbs                  |  "Some of you may die,
\ /        |  but it's a sacrifice
 X   I'm really at ac.dekanfrus     |  I'm willing to make."
/ \  if you read it the right way.  |    -- Lord Farquaad (Shrek)

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