[Nut-upsuser] Liebert UPS, serial cable questions

[Alain Williams]

On Sat, Feb 02, 2008 at 04:02:01PM +0200, George wrote:
> Hi,
> 
> I have a Liebert GXT2-1000RT230 UPS that is connected to my server
> using a serial cable.
> 
> I have no idea to what port exactly it is connected so my first
> question is: how do I find out what /dev/tty** should I use?
> 
> Do I need to install a device driver for it? Where do I find it?
> 
> What should I use and how do I do so the server shuts down if the
> battery level is low?

I have a Liebert UPS. It kind of works - connected via USB.
The problem that I have is that the UPS powers down too quickly
after it gives the 'shutdown' warning. There is some nasty Java
application that is supposed to control it, but I can't make it work.
The trouble is that the protocol to describe how to configure
it is deemed proprietary -- I have contacted Liebert, the guy reluctantly
said that he would ask managagement if they would release the specs,
never came back to me.

I suggest that we mark Liebert as 'partly' supported.

Until I can control Liebert properly I would not buy another one
and would not want others to make the same mistake.

The web site just lists things as supported -- some indication of
quality/goodness of support would be nice.

-- 
Alain Williams
Linux Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256  http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php
Chairman of UKUUG: http://www.ukuug.org/
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