Almost identical to catv taps.
From: Adam Moffett
Sent: Friday, March 1, 2019 10:40 AM
To: af@af.afmug.com
Subject: Re: [AFMUG] Fiber - ROI
I looked at this stuff six ways from sunday, and if I had to do a sparse area
that was self funded, I would do distributed tap architecture and try to use
12F drop cable as much as possible just like you are.
I imagine you keep re-using the same 4 colors for the customer facing
splitters, and use the other 8 colors to keep rolling down the road to the next
splitter.
On 3/1/2019 11:48 AM, Chris Fabien wrote:
Chuck
Here is a quick sketch of the optical tap split we use. Each handhole uses a
custom ratio FBT splitter to peel off a small bit of light from the mainline
fiber, and then a normal PLC to break that up further to the required number of
customers. If you are at all familiar with CATV this is essentially the same
thing that coax taps do, just with light. The appropriate FBT ratio has to be
picked at each handhole, and it steps up in % as you go down the line.
You can chain as many as 15-20 of these taps in a line using just one
mainline strand, depending on split ratio, distance, and GPON optical budget.
We run ZTE using class C++ OLT optics and run this system out to about 30km and
still can split to cover about 20 houses over a mile of road.
We normally run rural mainline direct buried. When your mainlin cable is 18
cents a foot 35 cents for duct just blows the budget plus it adds another work
step blowing or pulling the cable into the duct.
On Fri, Mar 1, 2019 at 11:11 AM <ch...@wbmfg.com> wrote:
Chris,
I would love to have you post a schematic diagram of your low count PON
system.
Do you use duct or direct burial?
From: Chris Fabien
Sent: Friday, March 1, 2019 9:00 AM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] Fiber - ROI
We do fiber in 5-20 houses per mile areas. You have to get the cost down as
much as possible. We plow most of our mainline direct buried, often use a
12-count tonable flat drop as mainline on side roads. With the right GPON
splitting topology you can feed several hundred houses on a 12-count fiber. If
the area is rural enough to not have a lot of paved driveways you can cover a
lot of ground fast plowing. Cheap electronics like ZTE or UBNT. Everythign
fusion spliced because splicing labor is cheaper for us than the fancy
connectorized systems.
Permitting cost will vary by area, our costs are $500 for the first mile
and $50 per additional mile, one time fee.
On Fri, Mar 1, 2019 at 10:54 AM Matt Hoppes
<mattli...@rivervalleyinternet.net> wrote:
I’m looking at running fiber to some very rural areas.
Even if I get grant funding to run it. How are those of you doing it
making the ongoing ROI when you might have 5 houses each mile?
Pole rentals are $15-$17/ea per year.
Is trenching normally something you pay the state/county per mile? Per
once permit?
Does anyone know of a company I can consult with that will design and
engineer FTTH networks?
Chuck - are you still accepting folks to come down with you for a week to
learn your ways of fiber?
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