Muni fiber: L1 or L2?

Mon Feb 4 11:58:10 UTC 2013

Scott Helms wrote:

>> Is it more expensive to home-run every home than to put splitters in the
>> neighborhood? Yes. Is it enough more expensive that the tradeoffs cannot be
>> overcome? I remain unconvinced.

> This completely depends on the area and the goals of the network.  In most
> cases for muni networks back hauling everything is more expensive.

Bot of you are wrong.

There is no reason fiber is more expensive than copper, which means SS
is cheap, as cheap as copper.

As most of the cost is cable laying, which is little sensitive to the
number of twisted pairs or fibers in the cable, PON, with splitters
and lengthy drop cables (if you want a fiber shared by many
subscribers, you need a lengthy drop cables from a splitter),
can not be less expensive than SS.

PON, which is expensive, is preferred by some carriers merely because it
makes competition impossible.

						Masataka Ohta