Re: [AFMUG] Outdoor PON OLTAs I recall, originally the GPON spec had a 12.5 
mile limit due to timing, not due to signal strength.
If you launch at -0 dBm and need –24 dBm that is a 24 dB margin.

32:1 splitters have 16 dB loss.  That leaves you with 8 dB for cable, connector 
and splice loss.
.5 dB per km for 1310, that gives you 16 kM or 10 miles.  I may be off on a few 
numbers here, but as I recall it worked out to take 32 out the full 12.5 miles 
without running out of light irrespective of where you placed the splitters.  

From: Adam Moffett 
Sent: Monday, February 12, 2018 9:38 AM
Subject: Re: [AFMUG] Outdoor PON OLT

Maybe I need to review the math.

I was figuring on several small splitters along the route.  I didn't compare to 
a 1x32 in the cabinet because I figured if I brought every fiber back to the 
cabinet then I didn't save anything versus ethernet.

------ Original Message ------
From: "Mark - Myakka Technologies" <>
To: "Adam Moffett" <>
Sent: 2/12/2018 11:30:46 AM
Subject: Re: [AFMUG] Outdoor PON OLT


  How far are you going?  We are pushing almost 20 miles on a 1x32 split.  Are 
you using one 1x32 or multiple smaller splitters?

  Best regards,

  Myakka Technologies, Inc.


  Sunday, February 11, 2018, 10:24:30 PM, you wrote:

       I'm looking at rural areas (like a few houses per mile).  As I'm looking 
at hypothetical power budgets for PON, I'm finding that if I run the line down 
the road and put splitters on the pole I can split 5-6 times and then I'm 
getting too low on db to keep going down the road.  At 5 or so houses per port, 
a 1U, 8 port ONT is no denser than a 1U switch.

        Your stated reasons for PON are all correct.  The numbers just aren't 
seeming to work out for me.

        I also figure if I install enough fibers for AE, I can still switch to 
PON some day if I want to.

        We would never max out the PON port, but looking back on the past 15 
years of growth in consumption I wonder if I should ever say "never". In AE I 
can put 100Gig in every house if I have to.  I'll "never" have to do that as 
far as I can imagine, but my imagination could be limited.


        ------ Original Message ------
        From: "Josh Reynolds" <>
        Sent: 2/11/2018 9:28:34 PM
        Subject: Re: [AFMUG] Outdoor PON OLT

             A few reasons...

              Port cost is still fairly high.

              More splicing.

              More fiber required.

              Larger chassis required.

              More power required.

              More battery backup required.

              Consumers not even close to using up 1-2 generations back of PON 
capacity in most places.

              On Sun, Feb 11, 2018 at 7:53 PM, Chuck McCown <> 

                   So, why do PON and not active in these super cheap optics 

                    From: Chuck Hogg
                    Sent: Sunday, February 11, 2018 6:10 PM
                    Subject: Re: [AFMUG] Outdoor PON OLT

                    We are walking away from them and Alphion...I think Mark's 
product with Zhone is different.


                    On Sun, Feb 11, 2018 at 2:29 PM, Mike Hammett 
<> wrote:

                         I think Chuck Hogg walked far away from DASAN...  or 
maybe it was DASAN that rescued them from the one they walked far away form. I 
don't remember which.  ;-)

                          Mike Hammett
                          Intelligent Computing Solutions

                          Midwest Internet Exchange

                          The Brothers WISP

                          From: "Jason McKemie" 
                          Sent: Tuesday, February 6, 2018 4:35:53 PM
                          Subject: [AFMUG] Outdoor PON OLT

                          In light of finding out that Calix's offering is not 
going to be anywhere near within budget, does anyone else have any other 

                          I found these guys, but have never heard of them:

                          It looks like DASAN also has an option - I've at 
least heard of them:


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