RE: GLUG: Can it be faked?

[KEpstein@xxxxxxxxx]

Graeme,

It's a micro line. I'm not sure if it can take a NIC. It's a fairly big one,
and it can supply all the equipment in my computer room with about 20
minutes of power, before the battery runs flat. 

Rgds, 
Kevin


-----Original Message-----
From: Graeme Walker [mailto:glug@xxxxxxxxxxxxxxx]
Sent: 03 January 2001 01:59
To: KEpstein@xxxxxxxxx; glug@xxxxxxxxxxxx
Subject: Re: GLUG: Can it be faked?


What UPS is it? I recently configured an APC UPS to autoshutdown via a java
app which works on anything with a JVM eg. NT / Linux via the network. You
add a network card to the ups and Bob's your uncle!

Graeme
----- Original Message -----
From: <KEpstein@xxxxxxxxx>
To: <glug@xxxxxxxxxxxx>
Sent: Wednesday, January 03, 2001 1:15 PM
Subject: RE: GLUG: Can it be faked?


> Mike,
>
> Thanks for the ideas. I had though about an ethernet solution by having
the
> HP box write directly to the COM2 device file in /dev on my linux box. I
> haven't yet decided exactly how I'll do this or even if it'll work.
> Have you got any ideas on how to capture everything being written to the
com
> port?
>
> Rgds,
> Kevin
>
>
> -----Original Message-----
> From: Michael Smith [mailto:mike@xxxxxxxxxxx]
> Sent: 03 January 2001 12:50
> To: KEpstein@xxxxxxxxx
> Cc: glug@xxxxxxxxxxxx
> Subject: Re: GLUG: Can it be faked?
>
>
>
> err
>
> Theoretical solutioni A :)
>
> Assumption: UPS sends power fail signal via serial cable
> Assumption: Both machines are closish together
>
> Wire up a serial cable between the linux box and the HP box
> Check what exactly is sent to the HP from the UPs, and then write
> a program to use the HP's seconds com port , and send that signal down
> the com port to the linux box. Then just have a script that runs, and
> sends that signal to the linux box when the HP receives it.
>
> Possible solution to distance problem, with the assumption of a functional
> ethernet during power failures
>
> Wire up a com cable to plug from com port 1 on linux box to com port 2
>
> Write a program on the hp that would login to the linux box and run a
> command that would send the appropraite ups signals down com1 on the linux
> box to be received by com2 on the linux box (com2 is being monitored by
> the ups software) in the event of a power failure
>
> All purely theory of course, but it might give you some ideas
>
> Mike
>
>
>
>
> ---
> Michael Smith (Warlock on IRC)
> http://www.warlock.web.za/
> "The software said Windows95 or better...
>                 ...so I got Linux"
>
>
> On Wed, 3 Jan 2001 KEpstein@xxxxxxxxx wrote:
>
> > Hi All,
> >
> > I've got an interesting problem with a simple solution - buy a UPS.
> > I'm not is a hurry to fork out cash though so I'll have to do it the
hard
> > way.
> > I'm trying to make my linux box think that it directly attached to
another
> > UPS that's at the oposite side of my building.
> > I have a UPS connected to a HP-UX 10.20 box, and when that box gets the
> > "power-fail" signal from the UPS, I'd like to the somehow get the HP-UX
> box
> > to "be the ups" and send the same signal to my linux box. Basically I
need
> > the HP box to fake being a UPSas far as my linux box is concerned? Can
> this
> > be done?
> >
> > Rgds,
> > Kevin
> >
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