*BSD News Article 33603


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From: johnsonm@calypso-2.oit.unc.edu (Michael K. Johnson)
Newsgroups: comp.os.linux.development,comp.unix.bsd
Subject: Re: APC UPS owners or potential buyers, trying to show user base
Date: 31 Jul 1994 01:10:21 GMT
Organization: Tea Conspiracy
Lines: 38
Message-ID: <JOHNSONM.94Jul30211022@calypso-2.oit.unc.edu>
References: <316bjc$hlh@thor.tjhsst.edu> <317k55$kq3@news.halcyon.com>
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In-reply-to: rhealey@sirius.aggregate.com's message of Fri, 29 Jul 1994 16:58:58 GMT


In article <CtpoIA.JJH@newsserver.aggregate.com> rhealey@sirius.aggregate.com (Rob Healey) writes:

   In article <JOHNSONM.94Jul28233853@calypso-2.oit.unc.edu>,
   Michael K. Johnson <johnsonm@calypso-2.oit.unc.edu> wrote:
   >   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.

I did not write that.  Please keep your attributions straight.  I
wrote a response which contained that text, but that was written by
someone else.

	   The Smart-UPS's use some sort of dongle RS232 cable if I remember
	   correctly, i.e. it's not a normal RS232 cable since it has extra
	   components in it. Once you have one of those cables its some sort
	   of 1 or 2 letter commands sort of thing to get info out of the
	   UPS.

	   It's the cables that hurt since they cost more than a simple 232
	   cable.

Hm.  I thought that they told me it was normal serial...  If this is
true, I'll have to manufacture a cable myself.  Won't be the first time...

	   The UNIXware software is SCO version too, I don't think they have
	   a specific version for any other OS.

They appear to have at least two different versions, since I've seen
them for two different prices...  I didn't buy it; I don't want
software to which I don't have the source controlling when I shut my
machine down, even if I *can* run it.

Thanks for the info.  I ordered my Smart-UPS 900 yesterday, and it will
arrive next week, baring disaster.  Then I get to work on it...

michaelkjohnson