I have used one to go the other way, 48 VDC in to 24 VDC out, on a TSI UPS/PowerSupply and it has worked flawlessly for 2 years in an outside enclosure.
Phil On Sun, Apr 7, 2013 at 3:07 PM, Clay Stewart < cstew...@stewartcomputerservices.com> wrote: > Has anyone used one of these to 'upgrade' a site to 24VDC while keeping it > 24VDC? > > http://www.alliedelec.com/search/productdetail.aspx?SKU=70069882#tab=specs > > > > On Sun, Apr 7, 2013 at 4:41 PM, Jon Auer <j...@tapodi.net> wrote: > >> That has been true, but it seems like the cell world has been moving to >> 48V lately. >> Examples: >> Alvarion carrier WiMax (2.5Ghz), macro and micro uses 48V (maybe you can >> get it in 24V, the stuff I've seen has all been 48V) >> With packet optical, if you put a Cyan box in that uses 24V you >> need separate linecard spares as they aren't compatible with the 48V stuff >> in core. >> More microwave backhauls are at 48V. Newer all-outdoor ones are using >> POE+ / 802.3at which is 48V. >> Cisco ASR901S pole-mount routers output POE+ so you have one outdoor box >> to take your fiber and go to microwave to other sites. >> Most Ethernet switches are AC or -48DC. >> >> >> >> On Sat, Apr 6, 2013 at 2:01 PM, Fred Goldstein <fgoldst...@ionary.com>wrote: >> >>> On 4/6/2013 2:20 PM, Mike Hammett wrote: >>> > They should have always been 48v. I think the only reason they >>> > weren't always 48v was because the RB5xx boards had problems >>> > producing noise at 48v. >>> >>> The commercial wireless world (cell sites) is all 24 volt. The wireline >>> world is 48 volt. So I can see why they would use 24 volts, but 48 is >>> usually only for central office buildings, where there is no radio gear >>> except, perhaps, some old-fashioned fixed microwave. A handful of >>> competitive players are doing microwave collocation in COs, but given >>> the cost, a power converter would be the least of their worries. >>> >>> > >>> > >>> > ----- Mike Hammett Intelligent Computing Solutions >>> > http://www.ics-il.com >>> > >>> > ----- Original Message ----- From: "Robert" >>> > <nos...@avantwireless.com> To: "paolo difrancesco" >>> > <paolo.difrance...@level7.it>, "WISPA General List" >>> > <wireless@wispa.org> Sent: Saturday, April 6, 2013 11:18:33 AM >>> > Subject: Re: [WISPA] Ubiquiti Rocket Titanium >>> > >>> > Exactly... UBNT looks more and more like a company trying less and >>> > less to stay out in front of the competition but locking in their >>> > customers... Very apple-ish... hmmmm Robert was at apple... >>> > >>> > >>> > On 04/06/2013 09:11 AM, Paolo Di Francesco wrote: >>> >> Hi Josh >>> >> >>> >> I did not notice the voltage change, but it looks like more a >>> >> business strategy (their switch does 24V and 48V) to lockout other >>> >> vendors than a real technical need >>> >> >>> >> Should I reimplement again a new battery system at 48V for the >>> >> site? Hum.... >>> >> >>> >> Thank you >>> >> >>> >> >>> >>> Ya...better. Different voltage though. >>> >>> >>> >>> Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne >>> >>> St Suite 1337 Troy, OH 45373 >>> >>> >>> >>> On Apr 6, 2013 11:04 AM, "Paolo Di Francesco" >>> >>> <paolo.difrance...@level7.it >>> >>> <mailto:paolo.difrance...@level7.it>> wrote: >>> >>> >>> >>> Hi all >>> >>> >>> >>> I was wondering if the Rockets-Titanium are stable, or if >>> >>> somebody is using them with success. Not sure if they perform >>> >>> better than the "plastic" ubiquiti >>> >>> >>> >>> Still missing the multiple SSID and IPv6 support, who knows if >>> >>> Ubiquiti will implement that sooner or later... >>> >>> >>> >>> Let me know your feedback and if the extra cost worths the >>> >>> improvements :) >>> >>> >>> >>> Thank you >>> >>> >>> >>> -- >>> >>> >>> >>> >>> >>> Ing. Paolo Di Francesco >>> >>> >>> >>> Level7 s.r.l. unipersonale >>> >>> >>> >>> Sede operativa: Largo Montalto, 5 - 90144 Palermo >>> >>> >>> >>> C.F. e P.IVA 05940050825 Fax : +39-091-8772072 >>> >>> <tel:%2B39-091-8772072> assistenza: (+39) 091-8776432 >>> >>> <tel:%28%2B39%29%20091-8776432> web: http://www.level7.it >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ Wireless mailing >>> >>> list Wireless@wispa.org <mailto:Wireless@wispa.org> >>> >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> >>> >> >>> >> >>> > _______________________________________________ Wireless mailing >>> > list Wireless@wispa.org >>> > http://lists.wispa.org/mailman/listinfo/wireless >>> > _______________________________________________ Wireless mailing >>> > list Wireless@wispa.org >>> > http://lists.wispa.org/mailman/listinfo/wireless >>> > >>> >>> >>> -- >>> Fred R. Goldstein fred "at" interisle.net >>> Interisle Consulting Group >>> +1 617 795 2701 >>> >>> -- >>> Fred R. Goldstein fred "at" interisle.net >>> Interisle Consulting Group >>> +1 617 795 2701 >>> _______________________________________________ >>> Wireless mailing list >>> Wireless@wispa.org >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >> >> >> _______________________________________________ >> Wireless mailing list >> Wireless@wispa.org >> http://lists.wispa.org/mailman/listinfo/wireless >> >> > > > -- > > > -- > SCS > Clay Stewart > CEO, Tye River Farms, Inc., > DBA Stewart Computer Services > 434.263.6363 O > 434.942.6510 C > cstew...@stewartcomputerservices.com > “We Keep You Up and Running” > Wireless Broadband > Programming > Network Services > > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless > >
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