search for: s1k320

...r where I plugged it now supports autoresume without power races :). However I was puzzled about the fact that the serial port looked like "smart", so I tried searching in google images with random searches about ups until I found something like my unit (at least in shape). It was a SOLA S1K320, and the chasis really looked like my unit, excluding power connectors and front panel. I could find the manual, and saw that the serial port description matched with what I had reverse engineered. According to the manual, some leds of my units are only available in the 650VA version, but mine look...