I'd have to imagine the timing would get considerably screwed up and you'd end up with rogue ONT errors constantly.
On Thu, Sep 9, 2021 at 9:23 AM Chuck McCown via AF <af@af.afmug.com> wrote: > Not saying you could convey a full gpon traffic load. But if you could > just have a few ONTs stretched out there via RF it would be very handy. It > seems pretty simple as a block diagram. Just a pair of the ONT SFPs and > then convert that to ethernet. As long as the timing was tight enough I > think it would work. Have to make sure to limit the rate on the ONT to not > be able to swamp the channel. Not sure if that is done in the ONT or not > on GPON system. If not an external switch with rate limiting would have > to be used. > > I would guess there is too much latency to keep the system happy. Pretty > sure the ONT transmit timing is some kind of polling system and probably > expects microsecond response times. That would have to be spoofed probably > . I wonder if the ONT receiving is essentially a tagging scheme with no > sync issues to worry about. > > *From:* Adam Moffett > *Sent:* Wednesday, September 8, 2021 8:41 PM > *To:* af@af.afmug.com > *Subject:* Re: [AFMUG] extending Calix GPON via RF > > > Is it even possible? How wide is an optical channel? They space them > 20nm apart, and that's gonna be around 2ghz of spacing between channels. > That doesn't mean the channel is 2ghz wide, but it might be "up to" that > big and you'd need that full duplex. I mean RFOG puts a whole cable TV > system on one wave right? So if they're not a full 2ghz channel they're > still pretty big. What radio band would give you a pair of ginormous > channels like that? > > > On 9/8/2021 4:57 PM, Carl Peterson wrote: > > I've looked but never found such a beast. i would love this, even for a > few hundred meters. Look into an E3 GPON. Easier than a full cabinet > > On Wed, Sep 8, 2021 at 2:10 PM Chuck McCown via AF <af@af.afmug.com> > wrote: > >> I am sure this has been discussed before but not finding it. >> >> I need to extend service to a small cluster of new homes being built. >> About 18 homes. >> Too far to get there with fiber right now. Maybe in a few years. >> >> So I want to extend my system up to them. Will take a repeater. So need >> to probably haul a gig up there on point to point. >> >> I would prefer to be able to serve these customers with Calix GPON. I >> could put an E2 system up there and feed it with ethernet. But it seems >> someone has come up with a way to extend an actual OLT/OIM type of signal >> via RF and put it back on the fiber such that the ONU thinks it is talking >> back to my E7-20 shelf at my C.O. >> >> Does any of this sound familiar? >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > -- > > Carl Peterson > > *PORT NETWORKS* > > 401 E Pratt St, Ste 2553 > > Baltimore, MD 21202 > > (410) 637-3707 > > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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