The official presentation from Ceragon in regards to the indoor/outdoor POE injector they have is that it is a DC-DC converter, accepting +/- 48v or +/- 24v and supplying -48v to the radio.
Regards. Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: [email protected] ----- Original Message ----- > From: "Jon Langeler" <[email protected]> > To: [email protected] > Sent: Tuesday, December 6, 2016 7:34:06 PM > Subject: Re: [AFMUG] WTB IP-20C POE > Only some of the outdoor injectors have redundant I believe > > Jon Langeler > Michwave Technologies, Inc. > > >> On Dec 6, 2016, at 7:32 PM, Ken Hohhof <[email protected]> wrote: >> >> I'm feeding one with +24V. I believe they have a DC-DC converter inside. >> They also take redundant power, right? >> >> -----Original Message----- >> From: Af [mailto:[email protected]] On Behalf Of Jon Langeler >> Sent: Tuesday, December 6, 2016 6:27 PM >> To: [email protected] >> Subject: Re: [AFMUG] WTB IP-20C POE >> >> I've been using regular 48v power supplies with the outdoor PoE injectors >> for years and no issue yet. >> >> Jon Langeler >> Michwave Technologies, Inc. >> >> >>>> On Dec 6, 2016, at 7:13 PM, Faisal Imtiaz <[email protected]> >>> wrote: >>> >>> Hi Chuck... >>> >>> This may be an opportunity to clarify something... >>> >>> According to the specs Ceragon IP-20c is a -48vdc radio. >>> Their POE box/adapter, takes 48v dc or 24v dc and powers the radio. >>> >>> There has not been any clear answer if their Radios will run on regular >> 48vdc directly ... >>> There have been folks who have 'tested' the cambium 820 version of these >> plugging directly on the Netonix switches. >>> >>> In my opinion, these are not 'in-expensive' radios that I would risk >> installing in-correctly. >>> >>> In recommending your injector / surge protector as a solution, my question >> would be. >>> >>> 1) can we do -48v dc power via these devices ? it is just a matter of >> making sure the polarity of the dc cable is correct ? or is there more to >> it. >>> >>> >>> Regards >>> >>> Faisal Imtiaz >>> >>> >>> ----- Original Message ----- >>>> From: "Chuck McCown" <[email protected]> >>>> To: [email protected] >>>> Sent: Tuesday, December 6, 2016 6:08:49 PM >>>> Subject: Re: [AFMUG] WTB IP-20C POE >>> >>>> I am hurt... >>>> >>>> http://www.mccowntech.com/800-gige-poe-outdoor-midspan-poe-injector-e >>>> thernet-surge-protector/ >>>> http://www.mccowntech.com/800-gige-poe-apc-rack-mount-surge-protector >>>> -power-inserter/ >>>> >>>> Sheesh! >>>> >>>> -----Original Message----- >>>> From: Faisal Imtiaz >>>> Sent: Tuesday, December 06, 2016 3:55 PM >>>> To: [email protected] >>>> Subject: Re: [AFMUG] WTB IP-20C POE >>>> >>>> Some suggestions:- >>>> >>>> for the POE injector... >>>> you can try a Cambium Reseller. >>>> you can possibly by them on Ebay (shipping from Israel) >>>> you can try Surplus Wireless Gear folks too. >>>> >>>> In regards to the Power Supply, that is a straight forward 48v DC >>>> power supply (Brick). >>>> >>>> Regards >>>> >>>> >>>> Faisal Imtiaz >>>> Snappy Internet & Telecom >>>> 7266 SW 48 Street >>>> Miami, FL 33155 >>>> Tel: 305 663 5518 x 232 >>>> >>>> Help-desk: (305)663-5518 Option 2 or Email: [email protected] >>>> >>>> ----- Original Message ----- >>>>> From: "Sterling Jacobson" <[email protected]> >>>>> To: "[email protected]" <[email protected]> >>>>> Sent: Tuesday, December 6, 2016 5:45:19 PM >>>>> Subject: [AFMUG] WTB IP-20C POE >>>> >>>>> Somehow I misplaced my Ceragon POE injector and power supplies >>>>> during a cabinet move. >>>>> >>>>> Anyone happen to have a Ceragon IP-20C compatible POE unit they >>>>> could sell me? >>>>> >>>>> I think the power supplies probably aren't that hard to find, but >>>>> the POE apparently is. >>
