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.<br><br>L<br><br><div class="gmail_quote">On Wed, Nov 11, 2009 at 11:59 AM, Karl O. Pinc <span dir="ltr"><<a href="mailto:kop@meme.com">kop@meme.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On 11/11/2009 10:34:09 AM, Niki Learn wrote:<br>
> Just a note - we had to buy new Back UPS for our office computers a<br>
> few<br>
> months ago because it turned out that the old ones were not<br>
> compatible<br>
> with<br>
> the true-sine power setup in our new computers (we periodically lose<br>
> power<br>
> briefly in Guyot and all the computers were shutting off). So you<br>
> should<br>
> probably check which type of power Dumbo uses (my understanding is<br>
> that the<br>
> true sine version is the new standard because it is more energy<br>
> efficient)<br>
> and be sure the device you pick is compatible.<br>
<br>
</div>Interesting. I've never thought about this.<br>
<br>
I could open a ticket with <a href="http://eracks.com" target="_blank">eracks.com</a> and ask<br>
them about dumbo. (We've got a year warranty.)<br>
They'll probably help with the external drive<br>
too, although we did not get it from them.<br>
<br>
The problem is the UPS specs don't mention anything<br>
and the only way to find out is to hook it up to<br>
an oscilloscope. Maybe the best choice is to<br>
just try it an see if pulling the power plug on the<br>
ups crashes dumbo.<br>
<br>
Could we ask Axel or Sal?<br>
<br>
Ryan, do you have any suggestions?<br>
<div><div></div><div class="h5"><br>
<br>
Karl <<a href="mailto:kop@meme.com">kop@meme.com</a>><br>
Free Software: "You don't pay back, you pay forward."<br>
-- Robert A. Heinlein<br>
<br>
<br>
_______________________________________________<br>
Babase mailing list<br>
<a href="mailto:Babase@www.eco.princeton.edu">Babase@www.eco.princeton.edu</a><br>
<a href="http://www.eco.princeton.edu/mailman/listinfo/babase" target="_blank">http://www.eco.princeton.edu/mailman/listinfo/babase</a><br>
</div></div></blockquote></div><br><br clear="all"><br>-- <br>- -<br>Lacey K. Maryott Roerish<br>Alberts Lab<br>Department of Biology<br>Duke University<br>ph: 919-660-7306<br>fax: 919-660-7293<br><a href="mailto:Lacey.Maryott@duke.edu">Lacey.Maryott@duke.edu</a><br>