Muni broadband sucks (was: New minimum speed for US broadband connections)

Fri Jun 4 16:23:04 UTC 2021

Baldur Norddahl wrote:

>>> Sorry but that claim is completely wrong. Cabling cost scales linearly
>> with
>>> the number of cores.

> My apology to Masataka Ohta for my too strong wording by calling you wrong.
> The moderators put me in place. I wanted to say I disagree with the claim.

I rather thank you for your very strong statements with so obviously
wrong reasoning, as it is trivially easy for me and, as you can see,
other participants of the list to argue against.

> It is true that trenching costs are higher than the cables themselves. But
> that does not mean the cables are cheap and that it is an
> insignificant cost. Cables + duct is about 20% of our cost to lay down the
> network.

"Cables + duct is about 20%"???

Are you saying reduction of 20% of cost of single star by PON
matters if duct cost of PON, which is as significant as that
of single star, could be ignored?

Maybe. it could actually be 20% of cost reduction, if, in addition,
cost of complicated closure and unnecessarily lengthy drop cable
cost of PON could be ignored.

So?

> Not having huts with active equipment spread all around is also a
> huge cost saving that can not be ignored.

Are you saying single star has "huts with active equipment"?

The reality is that reach of single star without active relays
is a lot longer than that of PON, because single star does not
use splitters, which is lossy.

With a fiber of 0.2dB/km loss, 9dB loss inherent to 8 way
splitter of PON means 45km less reach.

> I should point out that I probably buy more cable than most. The exact
> pricing is of course not public, but lets say a core cost somewhere between
> 1 to 2 USD cents per meter. Then

When? 50 years ago?

							Masataka Ohta