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Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!decwrl!fernwood!portal!cup.portal.com!thad
From: thad@cup.portal.com (Thad P Floryan)
Newsgroups: unix-pc.general,comp.sys.att
Subject: Re: power-fail monitor ??
Message-ID: <34655@cup.portal.com>
Date: 8 Oct 90 19:13:39 GMT
References: <34900@rphroy.UUCP>
Organization: The Portal System (TM)
Lines: 29

rhaar@rcsrlh.Berkeley.EDU (Bob Haar CS50) in <34900@rphroy.UUCP> writes about
using a UPS with his UNIXPC.

Due to recent workload I've only had a few minutes each day to read Usenet,
but always at least look at the UNIXPC newsgroups.  One item in Bob's posting:

``	[...]
	ps:(2) I made a test to see how long the UPS would last. After
	charging the battery overnight, I unplug the UPS from the wall socket.
	[...]
''

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

For YOUR safety, do not EVER unplug devices such as a UPS or SPS from a wall
socket to test them: you lose the protective grounding of the 3rd prong.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Instead, use a switchable power strip into which the UPS (or SPS) can be
plugged, then flip the strip's switch to OFF for testing the UPS (assuming
your UPS/SPS doesn't have a self-test switch).

Alternately, again leave the UPS/SPS plugged into the wall socket in areas
where extension cords and/or power strips aren't permitted (such as Palo Alto,
CA, as one for-instance), then manually trip the circuit breaker servicing
that wall outlet.

Thad Floryan [ thad@cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ]