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I'm having trouble with a TrippLite SU3000XLCD. I'm using a Raspberry Pi running Raspbian (wheezy) with NUT 2.6.4. I can monitor my older TrippLite UPSs, mostly SU1000RT2Us, with this Pi and a USB to serial adapter. My first thought with the SU3000XLCD was to use the USB port instead of the serial port as that's the "modern" thing to do. When I plugged the USB cable in

...I can monitor my older TrippLite UPSs, mostly SU1000RT2Us, with this Pi and a USB to serial adapter. Interesting, we don't have that model number listed in our compatibility list[*]. Do they mostly use tripplitesu or tripplite? [*] http://networkupstools.org/stable-hcl.html?manufacturer=Tripp%20Lite > My first thought with the SU3000XLCD was to use the USB port instead of the serial port as that?s the ?modern? thing to do. When I plugged the USB cable in to the UPS it turned off, dropping the load. The load is process control instrumentation which, while not damaged, presented some chall...