*BSD News Article 69752


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From: bissot@deltnaet.com (Joe Bissot)
Newsgroups: comp.infosystems.www.servers.misc,comp.os.linux.misc,comp.os.os2.networking.misc,comp.unix.bsd.freebsd.misc,comp.unix.misc
Subject: Re: need comments on Uninteruptable Power Supply
Date: Thu, 30 May 1996 19:58:18 GMT
Organization: Delta Internet Services, Anaheim, CA
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On Wed, 22 May 1996 02:34:28 -0500, Psycho Bob <honge@creighton.edu>
wrote:

>As the name suggest, this UPS is suppose to be compliment to the AST
>Manhattan servers. But my guess is that the sale hasn't gone all that
>well. Anyway, for 1000VA UPS, it's selling for under $200 -- and it has
>utilities for several OS (BSD, OS/2, Netware, etc.) for interfacing with
>it.
>
>Of course, it's the price that's attractive. I'm thinking of buying
>several. One of the personal replies I got said the unit is indeed good,
>but he's not too well conversed in UPS to know what kind sine wave it
>produces -- he just quoted me the items in manual. I have looked for UPS
>from both APC and Tripp Lite, but couldn't recall about sine distortion in
>"%". I was hoping that either someone has these AST UPS to know what makes
>it tick, or someone who knows something general/technical about UPS to
>point me out if this "3% distortion on sine wave output" is indeed a good
>figure to use.

I have an APC Smart 1400 and its specs are....

Low distortion sine wave
Frequency limits (on-line operation) 50 or 60 Hz, +-5%
On battery frequency 50 or 60 Hz, +-0.1 Hz
Transfer time 2ms - 4ms