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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? Yes, I'm a newby,