Re: 48vDC Output UPS

[Bryan Holloway <bryan () shout net>]

Eltek is worth a look. Really solid stuff. Used them for awhile now.

If you want battery back-up, it'll probably take more than 3 RU, though.


On 12/29/17 9:16 PM, Lewis,Mitchell T. wrote:
> I should have been more specific(Quite obvious by the responses I have been getting). I am looking for a rack mount 
> rectifier type device for a remote site(Not a Datacenter/Colo) which outputs 48vdc & has an 120vac input. I would like 
> it to be remote monitor-able via snmp(battery charge, running on batteries etc). I am looking for a runtime of about an 
> hour at about 500w load. A built in battery would be great but an external battery would work as well-I would like the 
> whole setup to be no more than 3ru.
>
> The purpose this device will serve to allow remote monitoring of power conditions(Advance Power Outage Notification, 
> Power Glitches etc) as well as power the connected devices for a short while in the event of a power glitch(Brown-Out, 
> Power outages up to 30-45 minutes etc).
>
> I hope this help clarify.
>
>
> Thanks & Regards,
>
> Mitchell T. Lewis
>
> [ mailto:MLewis () TechCompute Net | MLewis () TechCompute Net ]
>
>
> [ http://linkedin.com/in/mlewiscc ] |203-816-0371
>
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>         
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>
> From: "William Herrin" <bill () herrin us>
> To: "Lewis,Mitchell T." <ml-nanog () techcompute net>
> Cc: "NANOG" <nanog () nanog org>
> Sent: Friday, December 29, 2017 10:05:15 PM
> Subject: Re: 48vDC Output UPS
>
> On Fri, Dec 29, 2017 at 7:58 PM, Lewis,Mitchell T. < [ mailto:ml-nanog () techcompute net | ml-nanog () techcompute net ] 
> > wrote:
>
>
> I have been looking for a Rack Mount UPS that accepts AC power input but has 48vdc output(telco voltage). Anyone have 
> any recommendations?
>
>
>
> Hi Mitchell,
>
> That's not usually called an UPS. What you need is a Rectifier that feeds a -48 battery system. You connect your 
> equipment the battery and make sure the rectifier system puts out enough wattage to both power the equipment and keep the 
> battery topped off.
>
> Try searching ebay for "rack rectifier"
>
> Regards,
> Bill Herrin