On Wed, Apr 1, 2009 at 10:54 PM, Lelsie Rhorer <lrho...@satx.rr.com> wrote: > > Gentlemen, > > I am running a Tripp Lite OMNISV1500XL under NUT using the > tripplite_usb driver on a Debian "Lenny" Linux system. The platform is an > AMD Athlon 64 x 2 processor running kernel 2.6.26. The driver is up and > running, but there are several issues. > > First, the system drops communications with the UPS regularly - > typically 2 or three times an hour. I've worked around this by running a > script which checks every few seconds to make sure the UPS driver is > on-line, and if not restarts NUT. I do not observe this behavior when I > boot Windows XP Pro 64 on the system.
I believe this has been addressed once before: http://article.gmane.org/gmane.comp.monitoring.nut.user/4213/match=known > Secondly, the reported voltages are all incorrect. I measured > them with an accurate voltmeter, and the Input Voltage is typically around > 120V, the Output Voltage is 122V, and the Battery Voltage at full charge is > 26V. Running under Windows, the system confirms these values. Under the > Linux driver, however, the system is reporting an Input Voltage of around > 113V, an Output Voltage of 114V, and a fully charged Battery Voltage of > 14.6V. April Fools! We're just doing this to keep you on your toes. Actually, almost everything in tripplite_usb was determined by experimentation. You can see the raw data by starting the driver with an extra "-D" or two on the command line. (Please don't post the output to the list - at least, not until we have an answer to #2 below.) In order to fix the driver, we would need two things: 1) readings from the driver as the battery discharges, and the corresponding multimeter readings. 2) a way to distinguish your unit from the other units, which appear to work with the current scale values. Also, for #1, it would be ideal if you had a way to vary the line voltage. Finally, to paraphrase Arjen, "an UPS is not a measurement device." -- - Charles Lepple _______________________________________________ Nut-upsuser mailing list Nut-upsuser@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/nut-upsuser