[ale] OT: U.P.S. Recommendations

[James P. Kinney III]

On Wed, 2007-04-11 at 22:45 -0400, Jim Popovitch wrote:
> On Wed, 2007-04-11 at 22:02 -0400, Jeff Hubbs wrote:
> > Aaron -
> > 
> > What you probably want are "true online" UPSses - marketroidese for
> > UPSses that run the load off their inverters all the time.  This is
> > distinct from the typical APC/Belkin stuff that still has a "burp" when
> > they switch over from direct to inverter, relying to some extent on
> > systems' power supplies' tolerance for burps and perhaps even
> > ferroresonant transformers (meaning that they use transformers whose
> > electromagnetic circuit is designed with a built-in 60Hz "tuning fork"
> > effect.
> 
> Be warned, "true online" equals full time noise.  Modern home
> electronics can handle the "burp" USPes without problems, plus you
> wallet will appreciate it in addition to your ears.

Hmm. I was drooling over those when I though about the noise factor.
However, I have a backup generator that at the low end of the AC cycle
it generates some serious crud that a large APC that powers my server
stack doesn't like. At all. These system appear to be battery backed
power conditioners. One would handle my issue nicely and it's in a
closet anyway. Wife made some very unlady-like comments about the sound
out put from the 1U server. The comments got worse when I explained it
was one of 4. :)
> 
> -Jim P.
> 
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-- 
James P. Kinney III          
CEO & Director of Engineering 
Local Net Solutions,LLC        
770-493-8244                    
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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