True, at this point there's enough stuff that's 24v or 48v, or 48v, that I think it's best to just start moving to 48v for everything.
The only stuff that we're still using on towers that won't run on 48v is non-airfiber UBNT radios (which is getting less common for us anyway), and a few models of Mikrotiks (the 3011, specifically... there's not a good alternative for those yet), but I can deal with voltage converters for that stuff. On Thu, Jun 21, 2018 at 1:20 PM, <ch...@wbmfg.com> wrote: > Higher is always better. > > Wires are smaller. > Everything is more efficient. > Everything runs cooler. > Less voltage drop. > Less power loss in conductors. > Sometimes simplifies the design of the load device. > > *From:* Josh Luthman > *Sent:* Thursday, June 21, 2018 12:17 PM > *To:* Chuck McCown > *Cc:* Mathew Howard ; AFMUG > *Subject:* Re: [AFMUG] ePMP voltages again - specifically 2ghz > > In a perfect world it would all be 100% 48v (or hell even 100% 24v) but > the only rule of standards is that there are no standards. > > See XKCD 927 - https://xkcd.com/927/ > > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> > Suite 1337 > <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> > Troy, OH 45373 > <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> > > On Thu, Jun 21, 2018 at 2:10 PM, <ch...@wbmfg.com> wrote: > >> Nice to see the smaller players learning how to put on their big boy >> pants and join the ranks of carrier grade vendors. >> >> *From:* Mathew Howard >> *Sent:* Thursday, June 21, 2018 12:08 PM >> *To:* Josh Luthman >> *Cc:* Chuck McCown ; AFMUG >> *Subject:* Re: [AFMUG] ePMP voltages again - specifically 2ghz >> >> Well, MikroTik does have 48v now (the hEX PoE/PowerBox Pro will take up >> to 57 volts), but it's only one or the other, it doesn't do any voltage >> conversion. But what I've been doing at some sites is something like using >> one PowerBox Pro to feed all the 24v only gear, and a second one to feed >> the 48v gear. >> >> On Thu, Jun 21, 2018 at 1:02 PM, Josh Luthman < >> j...@imaginenetworksllc.com> wrote: >> >>> Agreed. >>> >>> EdgePoint does 48v only but has the outdoor part. >>> Netonix does 24v and 48v but doesn't have any outdoor capability >>> (enclosures would have to be ridiculous for the 12 port+) >>> Mikrotik only has 4 ports and 24v only. >>> >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>> Suite 1337 >>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>> Troy, OH 45373 >>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>> >>> On Thu, Jun 21, 2018 at 2:01 PM, Mathew Howard <mhoward...@gmail.com> >>> wrote: >>> >>>> Yeah, that's the easiest compromise at this point. >>>> >>>> What I'd like, is a box that I can connect a power supply to (whether >>>> that's 48v, or 24v, I don't care) that gives my a 48v and a 24v output, and >>>> has another connection for batteries and it deals with feeding the >>>> batteries the correct voltages and current. Whether that's 12v, 24v or 48v >>>> batteries, I don't really care... although I'd prefer 12v or 24v so can use >>>> a smaller number of bigger batteries, if I want to. >>>> >>>> Ideally, Forrest would build this, so I could just plug it into the >>>> SiteMonitors that are already there, and be able to monitor and control it >>>> as well. >>>> >>>> Of course I can buy all the parts separately to do the same thing, but >>>> having a pre-built box to do the job would be a lot cleaner. >>>> >>>> On Thu, Jun 21, 2018 at 12:52 PM, Josh Luthman < >>>> j...@imaginenetworksllc.com> wrote: >>>> >>>>> It was 48v >>>>> Then it was mostly 24v >>>>> Now it's going 48v >>>>> Just give it a little bit, it'll go back to 24v. >>>>> >>>>> I'd rather get a power supply doing 26v to fix my problem in 2 minutes >>>>> than start changing things to 48v which would blow so much stuff up (epmp >>>>> non gps, ubnt M gear, half the Mikrotiks) >>>>> >>>>> >>>>> Josh Luthman >>>>> Office: 937-552-2340 >>>>> Direct: 937-552-2343 >>>>> 1100 Wayne St >>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>> Suite 1337 >>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>> Troy, OH 45373 >>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>> >>>>> On Thu, Jun 21, 2018 at 1:05 PM, Mathew Howard <mhoward...@gmail.com> >>>>> wrote: >>>>> >>>>>> No, there's not really a good reason, it just means you have an extra >>>>>> part to deal with. >>>>>> >>>>>> We still use UBNT for our 2.4ghz stuff, but those are the only radios >>>>>> that won't run off 48v on most of our new sites, so I've done some that >>>>>> are >>>>>> 48v only and just use those things on the radios that need them. But if >>>>>> you >>>>>> have more than 1 or 2 things that need 24v, it's generally more practical >>>>>> to just use a bigger voltage converter and run multiple radios off it. >>>>>> >>>>>> On Thu, Jun 21, 2018 at 11:57 AM, <ch...@wbmfg.com> wrote: >>>>>> >>>>>>> Yep, that was what I was thinking. >>>>>>> So, looks to me like there is no reason not to do 48 volts. >>>>>>> >>>>>>> *From:* Mathew Howard >>>>>>> *Sent:* Thursday, June 21, 2018 10:56 AM >>>>>>> *To:* Chuck McCown >>>>>>> *Cc:* Dave ; AFMUG >>>>>>> *Subject:* Re: [AFMUG] ePMP voltages again - specifically 2ghz >>>>>>> >>>>>>> You mean like this? >>>>>>> https://www.ubnt.com/accessories/instant-8023af-adapters/ >>>>>>> >>>>>>> Or do you have something better in mind? >>>>>>> >>>>>>> On Thu, Jun 21, 2018 at 11:53 AM, <ch...@wbmfg.com> wrote: >>>>>>> >>>>>>>> Me too... >>>>>>>> So, what appetite is there for an inline POE regulator that would >>>>>>>> convert 48 to 24? >>>>>>>> >>>>>>>> >>>>>>>> *From:* Mathew Howard >>>>>>>> *Sent:* Thursday, June 21, 2018 10:50 AM >>>>>>>> *To:* Dave >>>>>>>> *Cc:* AFMUG >>>>>>>> *Subject:* Re: [AFMUG] ePMP voltages again - specifically 2ghz >>>>>>>> >>>>>>>> ugh... I keep forgetting to use reply-to-all... >>>>>>>> >>>>>>>> Not every single UBNT radio... all the airfibers will happily take >>>>>>>> 48v. Mikrotik is finally starting to make most of the new stuff handle >>>>>>>> 48v >>>>>>>> (including the PowerBox Pro), but yeah. UBNT is the reason I still >>>>>>>> have to >>>>>>>> use 24v on most of our towers... they make a converter you can stick >>>>>>>> on in >>>>>>>> line with the radios, but that's kind of a pain if you have more than >>>>>>>> one >>>>>>>> or two, and it's an extra part to fail. >>>>>>>> >>>>>>>> On Thu, Jun 21, 2018 at 11:46 AM, Dave <dmilho...@wletc.com> wrote: >>>>>>>> >>>>>>>>> They make dental floss for that :) >>>>>>>>> >>>>>>>>> >>>>>>>>> On 06/21/2018 11:39 AM, Josh Luthman wrote: >>>>>>>>> >>>>>>>>> Except for every single Ubnt device and a majority of Mikrotiks.... >>>>>>>>> >>>>>>>>> >>>>>>>>> Josh Luthman >>>>>>>>> Office: 937-552-2340 >>>>>>>>> Direct: 937-552-2343 >>>>>>>>> 1100 Wayne St >>>>>>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+%0D%0A++++45373&entry=gmail&source=g> >>>>>>>>> Suite 1337 >>>>>>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+%0D%0A++++45373&entry=gmail&source=g> >>>>>>>>> Troy, OH 45373 >>>>>>>>> <https://maps.google.com/?q=1100+%0D%0A++++++Wayne+St+Suite+%0D%0A++++++1337+Troy,+OH+45373&entry=gmail&source=g> >>>>>>>>> >>>>>>>>> On Thu, Jun 21, 2018 at 12:39 PM, Josh Baird <joshba...@gmail.com> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> I promise life will be easier if you just use 48V. :) >>>>>>>>>> >>>>>>>>>> On Thu, Jun 21, 2018 at 12:35 PM, Josh Luthman < >>>>>>>>>> j...@imaginenetworksllc.com> wrote: >>>>>>>>>> >>>>>>>>>>> I'm trying to use a Powerbox Pro to power up two epmp APs. The >>>>>>>>>>> 5 GHz is just fine but the 2 GHz is saying current too low. Both >>>>>>>>>>> ports are >>>>>>>>>>> getting 23 volts and the cables are <10 feet (from the Powerbox >>>>>>>>>>> Pro). >>>>>>>>>>> >>>>>>>>>>> Does anyone know if the 2ghz requires more voltage possibly? >>>>>>>>>>> >>>>>>>>>>> Spec sheet does say 23 volts min but it's weird one powers (5 >>>>>>>>>>> ghz) and the other doesn't. >>>>>>>>>>> >>>>>>>>>>> Josh Luthman >>>>>>>>>>> Office: 937-552-2340 >>>>>>>>>>> Direct: 937-552-2343 >>>>>>>>>>> 1100 Wayne St >>>>>>>>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>>>>>>>> Suite 1337 >>>>>>>>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>>>>>>>> Troy, OH 45373 >>>>>>>>>>> <https://maps.google.com/?q=1100+Wayne+St+Suite+1337+Troy,+OH+45373&entry=gmail&source=g> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> 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 >>>>>>>>> >>>>>>>>> >>>>>>>> ------------------------------ >>>>>>>> -- >>>>>>>> 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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