search for: su1500rtxlcd2u

...peed ports). David mentioned your model is likely protocol 4004. Here are other compatibility reports with that protocol ID: * https://networkupstools.org/ddl/Tripp_Lite/SU1000RTXL2UA.html * https://networkupstools.org/ddl/Tripp_Lite/SU1500RTXL2UA.html * https://networkupstools.org/ddl/Tripp_Lite/SU1500RTXLCD2U.html * https://networkupstools.org/ddl/Tripp_Lite/SU1000XLA.html * https://networkupstools.org/ddl/Tripp_Lite/SU2200XLA.html Seems like a good choice to me, based on the available information. Of those, the 1500s seem to have the most recent information (NUT 2.6.3). (Past performance is not a gua...

We're looking at replacing some old APC SmartUPS 5000s with something that has USB so NUT can more easily talk with it (and yes, I've tried USB-RS232 adapters and every one I tried started kicking out errors within a few hours). One of the bids we have is for a "Tripp Lite UPS Smart Online 5000VA 4500W Rackmount 5kVA 200V/240V" as the potential replacement unit. I have no