Which UPS?

[James Knott]

Scott Allen wrote:
> Emphasis on "we're talking the typical North American home here", thus
> assuming a typical small retail UPS.

I was referring to industrial systems, as used in telecom and data 
centers where all UPS is truly that.  No relays to switch output.  One 
example I came across a few years ago was at the new headquarters for 
the Kingston police.  Their UPS, made by Liebert IIRC, was a few 
cabinets about 5' high.  It provided power for all their communications 
equipment and computers.  In that environment, you do not want any hits 
that could even briefly interfere with operations.  Same thing, back 
when I was at Unitel/CNCP/CNT.  UPS meant just that, uninteruptable.  
There were no hits cause by switching on power failure.
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