[Cerowrt-devel] Fiber to the yurt approved

Dave Taht dave.taht at gmail.com
Thu Sep 25 10:06:30 EDT 2014

searching alibaba for new gear is truly an eye-opening experience...




I am under the impression however, that SFP+ is needed for gig
uplinks. Not that 100Mbit
is bad...

On Wed, Sep 24, 2014 at 11:12 PM, Joel Wirāmu Pauling <joel at aenertia.net> wrote:
> Put as many pairs as you can fit into the conduit to leave quite a lot of
> slack (2-5metres)

The specific question was what form of conduit (earth burial) would be sane?
This would be a ground burial thing where I would be comfortable with
ground buriable ethernet, no conduit (it's a forest), but fiber looks more

> We bury our splitters with ofdm break outs in waterproof boxes every 500m -
> 2km or so for the GPON roll out and blow the Fibre to the premise from the
> split.

Residences and yurts are spaced about every 3 meters in distinct subsections.

> Burying splinter boxes prevents vandalism/flooding issues and
> accidents.

This is a campground in california. Amusingly, a few hours after we started
eagerly discussing digging up the ground, it started pouring rain. I'm going
to put "discuss fiber deployment" into my bag of drought-ending tricks...

>Con's you have to dig it up every time you want to connect
> another pair into the ofdm. Fibre blower kit is expensive.

I saw that a fiber blower box was 6k. There seem to be daily rentals

> Choose your connectors on the ofdm carefully. LC style connectors are the
> norm on SFP(+) optics and isn't angled. This is my personal favorite but
> some dislike it. Is rarely the norm for In premise kit especially for pon.
> Angled and unangled SC connectors are norm for PON and CPE Home kit. Angled
> is better for loss and used primarily on the splitter OFDM but easy to munge
> if you connect angled to unangled.
> You might even consider just not using a splinter or OFDM patch at all and
> just having slack and unterminated fibers. Cheap Chinese Fujikura equivalent
> spilcers can be had for around 3000$ now. And splicing is always better than
> patching IME.
> Have fun!

You just hit me with more condensed jargon than I've had to deal with in many
a month, but I think I grokked most of it. It has been really
interesting to absorb
an entirely new technology with your help, that of the list, and google.

First up is just to trial something between two desparately needed points...

> -Joel
> On 25 Sep 2014 17:11, "Dave Taht" <dave.taht at gmail.com> wrote:
>> I just (surprisingly) got approval to do FTTY (fiber to the yurt)
>> here. (There are some geeks on the board of directors)
>> Questions on trenching - got all the equipment (backhoe, etc), but not
>> sure
>> what to lay in the ground, how deep, what regs apply, etc.
>> It sounds like laying conduit is the best option? Sources? 1000 meter
>> roll of what? what tools needed? (will look over the various
>> tutorials)
>> The other piece I'm vague on is how to split out each fiber from the
>> bundle to each location.
>> It seems sanest to standardize on single mode fiber (longest run would
>> be 600m), would be nice to find an openwrt capable router instead of a
>> media converter...
>> http://www.amazon.com/gp/product/B003AVRLZI/ref=s9_simh_se_p147_d0_i4?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=search-desktop-advertising-no-results-center-1&pf_rd_r=11AB4X7H6AZMPAKH0WSG&pf_rd_t=301&pf_rd_p=1912906182&pf_rd_i=fiber%20ground%20burial
>> _______________________________________________
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Dave Täht


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