[no subject]

- Jeff

On Fri, 2004-07-23 at 14:36, Cor van Dijk wrote:
> "Keith R. Watson" wrote:
> 
> > At 20:20 7/22/2004 -0400, you wrote:
> > >Greetings,
> > >I have several power backup units and they work ok with pc's. I also
> > >have a digital audio recorder,
> > >for which they do not work. It appears that the response time is too
> > >slow. All of the ones I have
> > >checked have a response time of 150 ms (or better they say), which is
> > >almost 9 cycles.
> > >Is anybody aware of faster ones or a way around this problem? The
> > >recorder takes only 30 Watts,
> > >so that should not be a problem. TIA.
> > >Cor van Dijk.
> > >
> > >_______________________________________________
> > >Ale mailing list
> > >Ale at ale.org
&gt; &gt; &gt;<a  rel="nofollow" href="http://www.ale.org/mailman/listinfo/ale";>http://www.ale.org/mailman/listinfo/ale</a>
&gt; &gt;
&gt; &gt; Cor,
&gt; &gt;
&gt; &gt; There are different kinds of UPS's. See 02.04.3 of the UPS FAQ.
&gt; &gt;
&gt; &gt; <a  rel="nofollow" href="http://www.non.com/news.answers/UPS-faq.html";>http://www.non.com/news.answers/UPS-faq.html</a>
&gt; &gt;
&gt; &gt; 3. What I call &quot;true&quot; UPS systems, those supplies that continuously operate
&gt; &gt; from an inverter. Obviously, there is no switchover time, and these
&gt; &gt; supplies generally provide the best isolation from power line problems. The
&gt; &gt; disadvantages to these devices are increased cost, increased power
&gt; &gt; consumption, and increased heat generation. Despite the fact that the
&gt; &gt; inverter in a &quot;true&quot; UPS is always on, the reliability of such units does
&gt; &gt; not seem to be affected. In fact, we have seen more failures in cheaper SPS
&gt; &gt; units. [ Note, though, that given the same quality inverter, you'd expect
&gt; &gt; the one that runs least to last longest. ]
&gt; &gt;
&gt; &gt; keith
&gt; &gt;
&gt; &gt; -------------
&gt; &gt;
&gt; &gt; Keith R. Watson                        GTRI/ITD
&gt; &gt; Systems Support Specialist III         Georgia Tech Research Institute
&gt; &gt; keith.watson at gtri.gatech.edu           Atlanta, GA  30332-0816
&gt; &gt; 404-894-0836
&gt; &gt;
&gt; &gt; _______________________________________________
&gt; &gt; Ale mailing list
&gt; &gt; Ale at ale.org
&gt; &gt; <a  rel="nofollow" href="http://www.ale.org/mailman/listinfo/ale";>http://www.ale.org/mailman/listinfo/ale</a>
&gt; 
&gt; Thanks Keith,
&gt; There appears to be a whole lot more to a UPS than I thought. The search for a
&gt; &quot;true UPS&quot; is on. In case you happen to know where I can get one I would
&gt; appreciate to hear from you. The vendor list at the end of the FAQ is ten
&gt; years old.
&gt; Thanks again, Cor van Dijk
&gt; 
&gt; _______________________________________________
&gt; Ale mailing list
&gt; Ale at ale.org
&gt; <a  rel="nofollow" href="http://www.ale.org/mailman/listinfo/ale";>http://www.ale.org/mailman/listinfo/ale</a>


</pre>
<!--X-Body-of-Message-End-->
<!--X-MsgBody-End-->
<!--X-Follow-Ups-->
<hr>
<!--X-Follow-Ups-End-->
<!--X-References-->
<ul><li><strong>References</strong>:
<ul>
<li><strong><a name="00626" href="msg00626.html">[ale] OT: slow back-UPS</a></strong>
<ul><li><em>From:</em> keith.watson at gtri.gatech.edu (Keith R. Watson)</li></ul></li>
<li><strong><a name="00667" href="msg00667.html">[ale] OT: slow back-UPS</a></strong>
<ul><li><em>From:</em> cor.angela at mindspring.com (Cor van Dijk)</li></ul></li>
</ul></li></ul>
<!--X-References-End-->
<!--X-BotPNI-->
<ul>
<li>Prev by Date:
<strong><a href="msg00685.html">[ale] Strange email behaviour</a></strong>
</li>
<li>Next by Date:
<strong><a href="msg00687.html">[ale] OT - Rant - I don't want your toner cartridges</a></strong>
</li>
<li>Previous by thread:
<strong><a href="msg00667.html">[ale] OT: slow back-UPS</a></strong>
</li>
<li>Next by thread:
<strong><a href="msg00703.html">[ale] OT: slow back-UPS</a></strong>
</li>
<li>Index(es):
<ul>
<li><a href="maillist.html#00686"><strong>Date</strong></a></li>
<li><a href="threads.html#00686"><strong>Thread</strong></a></li>
</ul>
</li>
</ul>

<!--X-BotPNI-End-->
<!--X-User-Footer-->
<!--X-User-Footer-End-->
</body>
</html>