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 To: firstname.lastname@example.org 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" <m...@mailmt.com> To: "Adam Moffett" <email@example.com> Sent: 2/12/2018 11:30:46 AM Subject: Re: [AFMUG] Outdoor PON OLT Adam, 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, Mark mailto:m...@mailmt.com Myakka Technologies, Inc. www.MyakkaTech.com ------ 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. -Adam ------ Original Message ------ From: "Josh Reynolds" <j...@kyneticwifi.com> To: firstname.lastname@example.org 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 <ch...@wbmfg.com> wrote: So, why do PON and not active in these super cheap optics days? From: Chuck Hogg Sent: Sunday, February 11, 2018 6:10 PM To: email@example.com Subject: Re: [AFMUG] Outdoor PON OLT We are walking away from them and Alphion...I think Mark's product with Zhone is different. Regards, Chuck On Sun, Feb 11, 2018 at 2:29 PM, Mike Hammett <af...@ics-il.net> 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" <j.mcke...@veloxinetbroadband.com> To: firstname.lastname@example.org 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 suggestions? I found these guys, but have never heard of them: http://www.richerlink.com/en/products.asp?ClassID=116 It looks like DASAN also has an option - I've at least heard of them: http://www.dasannetworks.com/product_images/V5806_20140520174927.pdf -Jason