1588v2 works best when every hop is 1588v2 aware and compatible. This means every router, switch, etc between the clock master and the radio should be qualified for correct operations. 1588v2 compatible gear tends to be much more expensive.
On Nov 16, 2016 3:38 PM, "Chuck McCown" <[email protected]> wrote: > Well, as long as your ethernet is fast and not jittery it sure seems like > an ideal solution. I guess it all depends on the absolute resolution you > have to have on a guaranteed basis. > > *From:* Mike Hammett > *Sent:* Wednesday, November 16, 2016 7:35 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] Packetflux & 450M Timing > > I'm not sure why everyone doesn't use that for timing. There may be > technical reasons I don't know about, but it seems like a logical first > step, use something everyone else is already using. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > *From: *"Bill Prince" <[email protected]> > *To: *[email protected] > *Sent: *Tuesday, November 15, 2016 6:30:53 PM > *Subject: *Re: [AFMUG] Packetflux & 450M Timing > > So that makes me very confused unless the PTPV2 is a "future" feature... > > > On Tuesday, November 15, 2016 4:19 PM, Sean Heskett <[email protected]> > wrote: > > > So interesting story here...we have three 450m's in the air and they are > getting sync over power from a packetflux gigabit sync injector & timing > over timing port via a packetflux sync injector 12. > > Old style sync seems to work just fine on the 450m. > > -Sean > > On Tue, Nov 15, 2016 at 4:06 PM Bill Prince <[email protected]> wrote: > > Based on what others have said, I think it is all part of the "Precision > Timing Protocol", it is an IP-based way of distributing timing information. > Look up IEEE 1588-2008, or Precision Timing Protocol Version 2. > > No more timing pulses. > > > On Tuesday, November 15, 2016 3:03 PM, Chuck McCown <[email protected]> > wrote: > > > Well, sending a pulse sounds like AM to me. Perhaps level shifting would > be a better term to use. > > *From:* Daniel White > *Sent:* Tuesday, November 15, 2016 3:40 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Packetflux & 450M Timing > > Something completely new. > > Instead of interrupting power, they are sending a “pulse” of power per > sync pulse. I don’t recall the details on it at this point. > > CMM5 FYI is looking like December availability now. > > Daniel White > Managing Director – Hardware Distribution Sales > ConVergence Technologies > Cell: +1 (303) 746-3590 > [email protected] > > *From:* Af [mailto:[email protected]] *On Behalf Of *George Skorup > *Sent:* Tuesday, November 15, 2016 12:40 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] Packetflux & 450M Timing > > So.. is "Cambium Sync" still a power interruption scheme or something > completely new? I thought the thing they were going to move to was 1588v2? > On 11/15/2016 1:26 AM, Forrest Christian (List Account) wrote: > > I guess I need to be more clear on this. .. > There are two types of sync over power. > The first is being called Canopy sync, which is compatible with the 450i > and earlier radios. > The second is being called Cambium sync and is compatible with the 450M > and I'm guessing later radios. > Currently there are devices that produce the cambium sync pulse... The > CMM5 and I'm about 100% certain that Last Mile Gear has one as well. I > have the technical information I need, just haven't had a chance to get > the circuit designed (I only received it shortly before wispapalooza), let > alone tested. > > On Nov 14, 2016 7:52 PM, "Forrest Christian (List Account)" < > [email protected]> wrote: > > No, Cambium elected to drop the traditional sync over power on the 450M. > So, you either need to use timing port sync (via the aux port) or use > what they're calling cambium sync. > The 1U injector is very close. I need to finish validation on the latest > board revisions and then will be releasing it to production assuming there > isn't some showstopper I missed. > > On Nov 14, 2016 7:34 PM, "Matt" <[email protected]> wrote: > > Shouldn't the sync over power for the 450M be the same as PMP450i? > > How is the 1u sync injector coming? > > > On Mon, Nov 14, 2016 at 12:30 PM, Forrest Christian (List Account) > <[email protected]> wrote: > > All of the currently shipping syncbox product line are compatible. For > sync > > over power, I have the specs, but the design isn't done yet. > > > > > > On Nov 14, 2016 5:40 PM, "Sam Lambie" <[email protected]> wrote: > >> > >> A question for Forrest mostly. Have you come up with a timing product > for > >> the 450m AP yet? If not, have you got a timeline for release? > >> > >> Sam > >> > >> -- > >> -- > >> Sam Lambie > >> Taosnet Wireless Tech. > >> 575-758-7598 Office > >> www.Taosnet.com <http://www.taosnet.com/> > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> > > > > > >
