[Babase] UPS devices

Lacey Maryott Roerish lroerish4 at gmail.com
Wed Nov 11 12:05:05 EST 2009


I just spoke with APC, one of the top UPS companies.. and they said that all
of their 'SMART UPS' products have true/pure sine  which is the same thing.

L

On Wed, Nov 11, 2009 at 11:59 AM, Karl O. Pinc <kop at meme.com> wrote:

> On 11/11/2009 10:34:09 AM, Niki Learn wrote:
> > Just a note - we had to buy new Back UPS for our office computers a
> > few
> > months ago because it turned out that the old ones were not
> > compatible
> > with
> > the true-sine power setup in our new computers (we periodically lose
> > power
> > briefly in Guyot and all the computers were shutting off).  So you
> > should
> > probably check which type of power Dumbo uses (my understanding is
> > that the
> > true sine version is the new standard because it is more energy
> > efficient)
> > and be sure the device you pick is compatible.
>
> Interesting.  I've never thought about this.
>
> I could open a ticket with eracks.com and ask
> them about dumbo.  (We've got a year warranty.)
> They'll probably help with the external drive
> too, although we did not get it from them.
>
> The problem is the UPS specs don't mention anything
> and the only way to find out is to hook it up to
> an oscilloscope.  Maybe the best choice is to
> just try it an see if pulling the power plug on the
> ups crashes dumbo.
>
> Could we ask Axel or Sal?
>
> Ryan, do you have any suggestions?
>
>
> Karl <kop at meme.com>
> Free Software:  "You don't pay back, you pay forward."
>                 -- Robert A. Heinlein
>
>
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>



-- 
- -
Lacey K. Maryott Roerish
Alberts Lab
Department of Biology
Duke University
ph: 919-660-7306
fax: 919-660-7293
Lacey.Maryott at duke.edu
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