Does non-GPS ePMP receive sync over power? Sent from my iPhone
> On May 9, 2015, at 3:16 PM, Bill Prince <[email protected]> wrote: > > Kidding right? I think all of our APs are sync over power excepting PTP450, > which only does timing port sync. We've just found sync over power to be most > reliable. > > bp > <part15sbs{at}gmail{dot}com> > >> On 5/9/2015 10:43 AM, Gino Villarini wrote: >> Why even mess with Poe sync?� >> >> Gino A. Villarini >> @gvillarini >> >> >> >> On May 9, 2015, at 1:30 PM, Darren Shea <[email protected]> wrote: >> >>> Forrest, >>> ��� Cambium has admitted there is a problem with GPS sync over power >>> dropping for no reason on the ePMP APs with some software versions, and it >>> is a cross-platform problem. It doesn�t seem to be any worse on our >>> PacketFlux gear than it is on the LMG CTM-2M � and we only see this on >>> ePMP, never with PMP 100, 320, 430, or 450. Luckily, we did deploy the puck >>> antennas on all of those AP�s, and they seem to work just fine with the >>> built-in sync. Cambium is expecting to fix it in a future software release. >>> � >>> � >>> From: Af [mailto:[email protected]] On Behalf Of Forrest Christian (List >>> Account) >>> Sent: Friday, May 08, 2015 4:49 PM >>> To: af >>> Subject: Re: [AFMUG] Cambium 450 and ePMP with Packet Flux Gear >>> � >>> I'll let others speak to the stability (as a couple already have). >>> >>> A few months ago there was an issue with a mutual customer of mine and >>> cambium's which was having sync problems with an epmp radio.�� To date, >>> I don't know if the problem was with the epmp, or with the injector, or >>> with a gps lock, or whatever.������ I can't say that sync is a >>> perfect thing - from time to time, gps modules act weird, injectors don't >>> inject, and AP's don't work right - no matter which product you have.� >>> When sync does bad things, it behaves badly.� For all I know, in this >>> case my product *might* have been at fault.� Or not.� It's not >>> important for the rest of the story.... >>> >>> In any case, somehow this problem morphed into a statement that somehow the >>> SyncInjectors had some sort of systemic issue which lots of wisps were >>> experiencing.�� I was not particularly amused by this, particularly >>> since I had no communication from cambium at all in relation to this.... >>> After some back and forth with my internal contact at cambium I was >>> informed that a) that they were tracking some *potential* issue with >>> external sync (usually with a syncinjector) on the ePMP and b) that they >>> hadn't had the time to figure out if it was packetflux-specific or a >>> general issue yet, and that if they determined it was related to my product >>> they'd contact me back.� So far, no call back, and I haven't heard any >>> more similar complaints - and I've had interactions with a lot of people >>> who use this regularly with ePMP with no known issues.� I also haven't >>> seen anything sync-related in the release notes since that time. >>> >>> -forrest >>> � >>> � >>> On Fri, May 8, 2015 at 6:45 AM, Tyson Burris @ Internet Communications Inc >>> <[email protected]> wrote: >>> General question here.� I saw something in the Cambium forum questioning >>> the reliability of Packet flux Sync Injectors. >>> � >>> If you use them, are your GPS syncs stable and is power output reliable on >>> the 450 and ePMP gear? >
