*BSD News Article 57976


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From: tzs@coho.halcyon.com (Tim Smith)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD and APC SmartUPS
Date: 4 Jan 1996 06:04:00 GMT
Organization: Northwest Nexus, Inc. - Professional Internet Services
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Message-ID: <4cfqkg$9tj@news1.halcyon.com>
References: <4bpmav$3v1@news.fsu.edu> <4btqec$555@uriah.heep.sax.de> <4c8701$j87@news1.halcyon.com> <4c8j5l$30e@uriah.heep.sax.de>
NNTP-Posting-Host: coho.halcyon.com

J Wunsch <joerg_wunsch@uriah.heep.sax.de> wrote:
>Do the Minuteman's use the same protocol?  (You'll find the protocol
>description in the file smartups.h in the above archive.)

The Minuteman seems to use a much simpler protocol.  (I don't have one.
I was just reading the manual at a store, so the following may be off.).
They don't seem to actually send any data either way--they just use a
couple of lines as on/off signals (probably the modem control signals?).
E.g., when you lose power, one of the lines changes from high to low, and
the computer can shut off the computer by pulling one of the other lines
low (or something like that).

--Tim Smith