On 22 Mar 2016, at 21:41, Neil J. McRae wrote:
At scale? I’m not so sure!
Well that rather depends how much you think your POTS plant costs you.
A wien bridge oscillator, to pick one of the many possibilities, is not
a particularly expensive or difficult thing, but that misses the point
somewhat.
A POTS facility isn’t technically required by many, but effectively it
is not optional. It can be omitted by LLU and SLU operators, but that
doesn’t work out well for non-technical reasons. A simple oscillator
providing tone would be functionally equivalent for those who don’t
need POTS, and should be cheaper, but should not be necessary either -
it’s not a technical problem.
d.