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Xref: sserve comp.os.linux.development:12542 comp.unix.bsd:14453 Newsgroups: comp.os.linux.development,comp.unix.bsd Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!uwm.edu!news.moneng.mei.com!howland.reston.ans.net!usenet.ins.cwru.edu!wariat.org!kf8nh!bsa From: bsa@kf8nh.wariat.org (Brandon S. Allbery) Subject: Re: APC UPS owners or potential buyers, trying to show user base Message-ID: <1994Jul29.113742.15952@kf8nh.wariat.org> Organization: Brandon's Linux box and AmPR node, Mentor, OH Date: Fri, 29 Jul 1994 11:37:42 GMT References: <316bjc$hlh@thor.tjhsst.edu> <317k55$kq3@news.halcyon.com> <JOHNSONM.94Jul28233853@calypso-2.oit.unc.edu> Lines: 24 In article <JOHNSONM.94Jul28233853@calypso-2.oit.unc.edu>, johnsonm@calypso-2.oit.unc.edu (Michael K. Johnson) says: +--------------- | In article <317k55$kq3@news.halcyon.com> mpdillon@coho.halcyon.com (Michael Dillon) writes: | | Really now! Those boxes use an RS-232 interface, right? What do they tell | the computer? If they only communicate one thing (power fail) then it | is probably something as simple as shorting the RD and SD lines. Get a | technician to check it out for you while you pull the plug. | | The "Back-UPS" do this. +------------->8 I have a Deltec UPS on loan (it will probably be returned when I come up with something decent to replace it); it won't send powerfail signals on its serial port unless (a) it is so configured and (b) it receives a command code over the serial port to activate it. Needless to say, said code is proprietary. I might get the SCO software for it and use iBCS2 system call trace to examine the codes sent over the serial port... ++Brandon -- Brandon S. Allbery kf8nh@44.70.4.88 bsa@kf8nh.wariat.org Friends don't let friends load Windows NT (tnx Sun) A Linux iBCS2 developer