Hey Josh, The new ePMP gigabit interfaces will work both polarities. You can actually use the old PMP100 power supplies with no issues that I have had so far. I have only left a couple in that mode because the existing customer wasn't home when we did the swap. All Cambium had to do was use a bridge on the input and as long as the voltage and current capabilities were acceptable.
1001001, Phil Phil Philip J. Rankin, CEO Wireless Telecommunications, Corp. A division of; Mobilcom Wireless Services PO Box 24 Pittsburg, KS 66762 620-231-8188 On Tue, May 8, 2018 at 2:53 PM, Josh Luthman <[email protected]> wrote: > Any polarity or any pinout? Pretty sure the Ubnt AirMax NanoBeam 25dbi > units will do gigabit but only do the old fashion 24v 45+ 78-. Reverse > polarity seems awfully sketch to me. > > > 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 Tue, May 8, 2018 at 2:25 PM, Mathew Howard <[email protected]> > wrote: > >> As far as I know, all of the ubnt gear with gigabit ports will take any >> poe polarity... As long as there's a pair with negative and a pair with >> positive, they'll turn on. I don't see that ubnt adding a second negative >> pair will really affect anything, unless netonix did that as well. >> >> On Tue, May 8, 2018, 11:53 AM Adam Moffett <[email protected]> wrote: >> >>> If that's right, would that mean 0.5amp on 4&5 and 0.25amp on 3&6,7&8 ? >>> Is it a 0.5amp fuse? >>> >>> >>> ------ Original Message ------ >>> From: "Jeremy" <[email protected]> >>> To: [email protected] >>> Sent: 5/8/2018 11:42:35 AM >>> Subject: Re: [AFMUG] crowdsource troubleshooting >>> >>> No, that is not true, it adds an additional ground on 3&6. So to obtain >>> a gigabit connection you have + on 4&5 and - on 3&6, 7&8. All of the >>> present day UBNT gear is like this since they added gigabit Ethernet. When >>> we upgrade we add a jumper to 3&6 to get it to negotiate at gigabit, but >>> they seem to operate at 100FDX without it. >>> >>> On Tue, May 8, 2018 at 9:30 AM, Jacob Turner <[email protected]> >>> wrote: >>> >>>> The Prism Gen 2 uses "standard" UBNT passive 24v POE. +4,5 -7,8. I've >>>> seen netonix switches claiming as much as 12 watts draw from one when >>>> running. I wouldn't be surprised if their startup draw may be a bit >>>> higher. >>>> >>>> On Tue, May 8, 2018 at 8:16 AM, <[email protected]> wrote: >>>> >>>>> I need help in understanding a product failure. >>>>> >>>>> I have now had two customers with similar failures in my POE fuse >>>>> product. The fuses are blowing. >>>>> So far it is limited to the fuses on pins 4/5. >>>>> >>>>> One customer is using: >>>>> UBNT 5AC Prism Gen 2 radio, Mikrotik 411 boards, using both poes and >>>>> netonix as the power supply. >>>>> >>>>> What pins and polarities does that radio use for POE? How much >>>>> current? >>>>> >>>>> I may need higher rated fuses or slower fuses. But I can only go so >>>>> high before it is not protecting Netonix thus becoming an expensive CAT5 >>>>> splice. >>>>> >>>>> My ideas so far: >>>>> >>>>> I need a slower reacting fuse. >>>>> >>>>> I need a higher amp rating fuse. (not sure how high I can go and >>>>> still protect Netonix) >>>>> >>>>> Some loads have unanticipated currents on those wires. >>>>> >>>>> Plugging in when powered may cause a connection sequence problem where >>>>> if pin 4 makes contact first the whole load will go through that wire and >>>>> blow that fuse. >>>>> >>>>> >>>> >>>> >>> >
