Date: Mon, 26 Nov 2001 02:51:28 -0800 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: <kjell@la3sg.net> Cc: <freebsd-questions@FreeBSD.ORG> Subject: RE: Dumb UPS support under FreeBSD? Message-ID: <002c01c17668$4d649bc0$1401a8c0@tedm.placo.com> In-Reply-To: <3C020FDE.24171.7CF4E7@localhost>
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>-----Original Message----- >From: owner-freebsd-questions@FreeBSD.ORG >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Kjell >Sent: Monday, November 26, 2001 1:48 AM >To: Ted Mittelstaedt >Cc: freebsd-questions@FreeBSD.ORG >Subject: RE: Dumb UPS support under FreeBSD? > > >I have followed this line, but I ended up with a small microprocessor >project to be built into the UPS in order to take care of all possible >races etc.. I concluded it was better to go out and buy a new smarter >UPS than do this. > What you want is the "APC SmartUPS" - I checked again and I made a mistake on the model in my earlier message - the BackUPS has a delay timer but it only works the other direction - the UPS signals the computer to shut down a certain time period before it shuts down, not the other way round. Only the SmartUPS has the input you want - here's an extract from the pinout explanation for the pertinent pin: "...The UPS will shut down when a high RS-232 level is sustained on pin 1 for 4.5 seconds. The UPS responds to this signal only after a delay and during a power utility failure (when the UPS is operating on battery). Pin 1 is also the RS-232 data input (RXD)..." Go to www.apc.com and do a search for "Serial port pin-outs on Smart-UPS products" in their knowledgebase. >To turn my ATX back on again I have tried to use the "wake on ring" >feature, but it does not seem to be as reliable as I want. Another >possibility I see is to pulse the power on connector on the main board. >Do you see any other possibilities? > Check your BIOS settings. I'm positive that I've seen a BIOS option on a new BIOS that will make the computer power up if power is applied to the mains (basically ignoring the soft switch the first time the system is powered) Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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