Date: Tue, 21 Feb 2006 13:02:09 -0600 From: David Kelly <dkelly@hiwaay.net> To: FreeBSD-Questions@FreeBSD.org Subject: Re: Making APC 500 Back UPS (basic) work with FreeBSD Message-ID: <20060221190209.GA5097@Grumpy.DynDNS.org> In-Reply-To: <200602211035.41130.duncan.fbsd@gmail.com> References: <7.0.0.16.2.20060221092207.05004b60@msdi.ca> <20060221153253.21769.qmail@web60020.mail.yahoo.com> <7.0.0.16.2.20060221105054.0505ccf8@msdi.ca> <200602211035.41130.duncan.fbsd@gmail.com>
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On Tue, Feb 21, 2006 at 10:35:40AM -0600, Donald J. O'Neill wrote: > > I think in this case, he was referring to extra sensory perception. But, > since this is evidently a model that just sits there and supplies > backup power until the battery is too depleted to AC power to the > computer at an acceptable level, and at that point the computer shuts > off. I would say this model is not capable of esp. I'd say the original assessment was correct in that ESP was the *only* possible way to read the status of a UPS which doesn't have an external monitoring interface. :-) The very very old units often had simple status lines which could be monitored with special software thru a parallel printer port. If the UPS has a warning buzzer he could put a microphone on a sound card and listen for the buzzer. The buzzes often come faster just before the UPS breathes its last breath. If one does such a thing we've already got a name for it, ESP. -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.
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