It just all depends on the SFPs you're using. Check their spec sheets. 



----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 




----- Original Message -----

From: "Sterling Jacobson" <[email protected]> 
To: [email protected] 
Sent: Wednesday, August 2, 2017 12:10:05 PM 
Subject: Re: [AFMUG] UBNT OLT Transition from Active Ethernet to GPON 

Hmmm, that's not good if it can't auto-attenuate down. 

Sounds like they need to fix that. 

Most of my SMF lasers and links are short and 'hot', but doesn't seem to bother 
anything I'm currently using. 



-----Original Message----- 
From: Af [mailto:[email protected]] On Behalf Of Brett A Mansfield 
Sent: Wednesday, August 2, 2017 10:16 AM 
To: [email protected] 
Subject: Re: [AFMUG] UBNT OLT Transition from Active Ethernet to GPON 

I need to print a retraction here. I have been talking to Martin at UBNT and he 
shows me the error of my ways. I do not have a 50% failure rate. In fact, it's 
a 0% failure rate. My signal was just too hot. I'm new to the SM Fiber game, so 
I'm learning as I go. I didn't realize the signal could be too hot at only -3 
dB. All of my multi mode Fiber sits at -2 dB and works really well. 

You learn something new every day. 

Thank you, 
Brett A Mansfield 

> On Jul 31, 2017, at 2:46 PM, Brett A Mansfield <[email protected]> 
> wrote: 
> 
> I have heard a lot of complaints from DirectCom customers about their Fiber 
> never being close to what they pay for, but that may be more related to the 
> way it's throttled then the GPON. 
> 
> I've been playing with several of these ONT/OLT over the past week. I really 
> like them. Though I have a 50% failure rate on the nanoG's. The fiber port 
> breaks very easily. 
> 
> Thank you, 
> Brett A Mansfield 
> 
>> On Jul 31, 2017, at 2:31 PM, <[email protected]> <[email protected]> wrote: 
>> 
>> We have good luck with 32 customers per 2.4 Gbps down on GPON. Lotsa 
>> overhead. No problems, not even close, so far. And we are selling more Gig 
>> circuits than ever before. 
>> 
>> -----Original Message----- From: Sterling Jacobson 
>> Sent: Monday, July 31, 2017 2:19 PM 
>> To: '[email protected]' 
>> Subject: [AFMUG] UBNT OLT Transition from Active Ethernet to GPON 
>> 
>> Anyone tried their PON OLT CPE and OLT 8 port (128 clients per port) 1U 
>> unit? 
>> 
>> I see pricing around $70 retail for OLT, but haven't seen pricing yet for 
>> the OLT 1U unit. 
>> 
>> Also, I'm active fiber right now, so I have full 1 to 1 panels in the rack 
>> already. 
>> 
>> If I wanted to 'migrate' to OLT from active I would need some sort of 
>> transition panel/setup right? 
>> 
>> Right now my density is 48 ports per 1U 1 to 1 single family home 
>> connections. 
>> 
>> The UBNT Fiber OLT has 8 ports handling up to 128 clients each, with 20Gbps 
>> uplink capability (not quite sure on those split details yet). 
>> 
>> I currently only take a max of 576 per cabinet on active, so I could easily 
>> use just one of these UBNT fiber OLT units. 
>> If I don't care about the share ratio I guess, I would just get another 576 
>> panel count that spliced 72 count to each port and I'm done. 
>> 
>> I'm unclear what that panel/splice would look like though since I've never 
>> actually done GPON. 
>> 
>> And I would probably want to not load up that many per port, and instead 
>> maybe get four of the UBNT Fiber OLT units. 
>> That would take up 4U of rack space, the fanout would probably still take up 
>> 4U of rack space, for a total of 8 U. 
>> And I would have instead an 18 customer to 1 port on the GPON instead of 72 
>> which I like better for future use. 
>> 
>> Do these UFiber OLT 1U rackmount units share just 1Gbps per each of the 8 
>> ports? That would only be 8Gbps needed total. 
>> So I assume the GPON spec they are using can transmit more than that per 
>> each of the 8 GPON ports, right? 

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