The Mimosa specs actually say 20 watts max - I have no idea what they actually use. The reason I'm looking at doing 48v and down-converting is that I only have low voltage cable buried to the tower, so I'd be putting the down-converter at the base of the tower and running that at 48v to cut down on voltage drop.
On Wed, Jan 7, 2015 at 11:06 AM, Josh Luthman <[email protected]> wrote: > Well assuming the Mimosa is like 50 watts, how much efficiency is really > going to happen here? Say it's crazy at 10% you're saving 5 watts. The > downside is your regulator needs to carry the wattage of say 8 APs, a > router, etc at 100 watts. > > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > On Wed, Jan 7, 2015 at 12:04 PM, Mathew Howard <[email protected]> > wrote: > >> I'm considering upconverting instead... it would actually be a lot >> easier, but I think it's probably going to make more sense in this >> particular case to go with a 48v power supply. that said, what would be a >> good option for a 24v to 48v upconverter? >> >> On Wed, Jan 7, 2015 at 10:51 AM, Mike Hammett <[email protected]> wrote: >> >>> but backhauls use more power than APs, traditionally. >>> >>> Cambium tower radios support 48v. >>> >>> >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> ------------------------------ >>> *From: *"Josh Luthman" <[email protected]> >>> *To: *[email protected] >>> *Sent: *Wednesday, January 7, 2015 10:47:24 AM >>> *Subject: *Re: [AFMUG] Mimosa DC PoE injector >>> >>> >>> Cambium's latest is 24v >>> Ubnt is 24v >>> Mikrotik is 24v >>> >>> Big backhauls are 48v, but you typically have more APs than backhauls. >>> >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> >>> On Wed, Jan 7, 2015 at 11:44 AM, Bill Prince <[email protected]> >>> wrote: >>> >>>> I'd go with the native 48V for the Mimosa, and a down-converter for >>>> whatever needs 24V. More and more products are coming out with 48V, and >>>> it's easier, and lower current to go down voltage than up voltage. >>>> >>>> bp >>>> <part15sbs{at}gmail{dot}com> >>>> >>>> >>>> On 1/7/2015 8:41 AM, Josh Luthman wrote: >>>> >>>> For one device on 48v I'd do 24v natively and go up. Otherwise you >>>> have 1 part that you need to scale with for the rest of the tower. >>>> >>>> >>>> Josh Luthman >>>> Office: 937-552-2340 >>>> Direct: 937-552-2343 >>>> 1100 Wayne St >>>> Suite 1337 >>>> Troy, OH 45373 >>>> >>>> On Wed, Jan 7, 2015 at 11:39 AM, Chuck McCown <[email protected]> wrote: >>>> >>>>> It would do it. >>>>> Best? Yes in my opinion. >>>>> But that is only an opinion. May not truly be the best option for >>>>> you. >>>>> >>>>> *From:* Mathew Howard <[email protected]> >>>>> *Sent:* Wednesday, January 07, 2015 9:24 AM >>>>> *To:* af <[email protected]> >>>>> *Subject:* [AFMUG] Mimosa DC PoE injector >>>>> >>>>> I need to power a Mimosa B5 at a site where I only have DC at the >>>>> tower, would a WBMFG GigE-POE be the best thing to use to power one of >>>>> these? >>>>> >>>>> Also, since I'm going to need to be converting to 48v, I'm thinking >>>>> of using a Meanwell AD-155C and an RSD-100C to downconvert to 24v for >>>>> everything else - is there anything I should be looking at doing >>>>> differently? >>>>> >>>> >>>> >>>> >>> >>> >> >
