For 24v, Meanwell has the DR-UPS40, but since they don't make a 48v version of that, I just have string of 48v batteries wired straight to the power supply.
I avoid AC UPS's whenever possible. On Fri, Nov 23, 2018, 3:36 PM Ken Hohhof <[email protected] wrote: > What are you doing for battery backup? > > > > Another option we use at most of our medium size towers now is the Traco > TSP-BCM48 battery control module with a TSP360-148 power supply. They do > have a 600W version I think it is TSP-BCM48A and TSP600-148 but I haven’t > used them. > > > > I’m going to guess you have AC UPS’s with a big-ass battery string? > > > > > > *From:* AF <[email protected]> *On Behalf Of *Mathew Howard > *Sent:* Friday, November 23, 2018 1:57 PM > *To:* AFMUG <[email protected]> > *Subject:* Re: [AFMUG] 48v Power Supply Switches > > > > Yeah, 1000 watts does seem like overkill for... the biggest power supply > I've used on any of our towers is 480 watt, and I figured that should be > more than double what we actually are using. I mostly use Meanwell 240 watt > DIN rail mount power supplies these days. > > > > On Fri, Nov 23, 2018 at 12:08 PM Ken Hohhof <[email protected]> wrote: > > I assume you want an AC/DC power supply not a switch? Mean Well is a > good brand, personally I prefer the HRP series especially if you putting it > at a tower site because it is a high reliability model with a wider > temperature range, the price difference won’t break the bank. I tend to > keep HRP-150 and HRP-300 supplies on the shelf. > > > > Also that’s a pretty big power supply. Do you really need that much > power? It makes sense to have some extra capacity to handle inrush > current, but probably not more than double. Power supplies tend to be > inefficient when run way below max rating. If you really need 1000 watts, > maybe a rectifier shelf with N+1 redundant power modules would be a better > choice. Or for the higher power consumption radios like licensed > backhauls, some WISPs like to use a 100 or 150W power supply for each radio. > > > > *From:* AF <[email protected]> *On Behalf Of *Chuck McCown > *Sent:* Friday, November 23, 2018 10:01 AM > *To:* AnimalFarm Microwave Users Group <[email protected]> > *Subject:* Re: [AFMUG] 48v Power Supply Switches > > > > I have always had great luck with Meanwell products. > > > > *From:* Alex Davidson > > *Sent:* Friday, November 23, 2018 8:11 AM > > *To:* [email protected] > > *Subject:* [AFMUG] 48v Power Supply Switches > > > > Hey guys, we are stepping up to some 48v equipment on a tower and in > looking into power supply switches. This seemed to be something that would > work for us (Mean Well SE-1000-48). Any thoughts or pros and cons that yall > have found with this unit. Any units of similarity that might work well in > place of this one. Thanks > > > > > > > ------------------------------ > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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