How much margin above sensitivity should be targeted? Jon Langeler Michwave Technologies, Inc.
> On Feb 14, 2018, at 11:01 PM, Chris Fabien <[email protected]> wrote: > > Regarding the distance, our ZTE will support up to 60 km, but max difference > of 20km between ONU on one PON. There's just a range parameter that needs to > be set. > > We ordered C+ optics and see a real optical budget of 33dB. The OLT is about > +5.5 tx and -34 min rx sensitivity. The ONU about + 0.5 tx and -28 rx sens. > > I've been very impressed with the optical performance. > > We did test the ubnt as well. Went with ZTE > >> On Feb 12, 2018 1:23 PM, "Adam Moffett" <[email protected]> wrote: >> That's also a compelling point. >> >> It's not a simple question for sure. >> >> The other reason I would think about GPON is that if a larger company wanted >> to purchase our network down the road I have to think about what THEY will >> prefer. They'll probably prefer PON. >> >> Humans are horrible at assessing their own biases, but I probably have a >> bias towards ethernet because it's familiar. I try to bear that in mind too. >> >> >> ------ Original Message ------ >> From: "Chuck McCown" <[email protected]> >> To: [email protected] >> Sent: 2/12/2018 1:13:18 PM >> Subject: Re: [AFMUG] Outdoor PON OLT >> >>> When doing full throttle Calix GPON we have about $570 invested in cpe >>> electronics, splitter, ont/olt/onu etc. Everything but fiber and outdoor >>> cabinets. >>> >>> When doing active Ethernet you can come in closer to $100 per customer. >>> For non regulated greenfield, I am having a hard time convincing myself to >>> do PON. >>> >>> From: Mark - Myakka Technologies >>> Sent: Monday, February 12, 2018 11:09 AM >>> To: Chuck McCown >>> Subject: Re: [AFMUG] Outdoor PON OLT >>> >>> Chuck, >>> >>> PLC splitter in spice case doing full fusion splicing. >>> >>> -- >>> Best regards, >>> Mark mailto:[email protected] >>> >>> Myakka Technologies, Inc. >>> www.MyakkaTech.com >>> >>> ------ >>> >>> Monday, February 12, 2018, 12:09:32 PM, you wrote: >>> >>> >>> Are you using splitters in splice cases or in cross connect boxes? >>> >>> From: Mark - Myakka Technologies >>> Sent: Monday, February 12, 2018 9:55 AM >>> To: Adam Moffett >>> Subject: Re: [AFMUG] Outdoor PON OLT >>> >>> Adam, >>> >>> There are some ranging things you have to consider. "The requirement >>> when deploying ONTs are the maximum distance between two ONTs cannot >>> exceed 20Km." >>> >>> The way we have done this is to reuse fibers as we travel down long >>> stretches of roads between neighborhoods. >>> >>> We will deploy a 1x32 splitter in the field. We will splice that into the >>> last 3 ribbons/tubes of our fiber. Example, if we were using a 144 count >>> cable, ribbons 10-12 will be spliced into. After a few miles depending on >>> density or distance, we will splice in another 1x32 splitter to ribbons >>> 10-12. We just keep doing this until we run out of light budget. >>> >>> We build to the lots passed, so we are not trying to optimize max usage per >>> port. Currently, we average about 50% utilization on our ports. >>> >>> >>> >>> >>> >>> -- >>> Best regards, >>> Mark mailto:[email protected] >>> >>> Myakka Technologies, Inc. >>> www.MyakkaTech.com >>> >>> ------ >>> >>> Monday, February 12, 2018, 11:38:39 AM, you wrote: >>> >>> >>> 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" <[email protected]> >>> To: "Adam Moffett" <[email protected]> >>> 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:[email protected] >>> >>> 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" <[email protected]> >>> To: [email protected] >>> 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 <[email protected]> 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 protected] >>> 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 <[email protected]> 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" <[email protected]> >>> To: [email protected] >>> 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
