Mailinglist Archive: opensuse (2886 mails)

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Re: [SLE] TrippLite UPS Interface Problem
  • From: alta <spam@xxxxxxxxxxxxxxxxx>
  • Date: Fri, 15 Feb 2002 15:31:28 -0800
  • Message-id: <20020215231932.42AA4CF428@xxxxxxxxxxxxxxx>

I made an adapter gizmo with resistors and diode. Re-booted (just as
a precaution), and simulated power-fail and low-battery. Still, my
system won't shut down. I verified that the daemon is running with
genericups 5.

It does not seem right that upsc and upsct fail, as below:

alta@alta1:~> upsc localhost
Unable to get variable list - Receive timeout
alta@alta1:~> upsct localhost
Unable to connect to localhost - Connection failure: Connection
refused

Hmmm, I wonder why they would have trouble with localhost. Like port
numbers not matched, or blocked. I'm not real knowledgable in this
area.

... Reed, alta@xxxxxxxxxxxxxxxxx



On Friday 15 February 2002 13:05, you wrote:
> On Friday 15 February 2002 15:58, alta wrote:
>
> Great information. Good to know TrippLite responded.
>
> > genericups 5 puts -12 on SD, +12 on DTR, and -12 on RTS. This
> > all makes sense to me (and is compatible with measurements) for
> > genericups 5 except for one bad thing: If I simulate AC Fail and
> > Low Batt by feeding -12 volts to computer pins 1 and 8, my
> > computer does not shut down. The daemon is running, but no
> > cigar.
>
> Do you have the resistors between 4 and 1 and 4 and 8 when you are
> testing? I would think that they would have to be present for the
> software to detect a valid level change. RS-232 inputs can swing
> either way if they are simply open circuited. Applying the -12v
> to 1 and 8 might not actually be changing their states.

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