On 15/11/2010, at 18.17, Gene Heskett wrote: > On Monday, November 15, 2010 12:14:18 pm Jon Bendtsen did opine: > >> Hi >> >> Occasionally I get emails from my NUT system saying that one of my UPSes >> lost power for about a minute. >> >> Losing power: >> Date: 15. nov 2010 17.40.25 CET >> >> regaining power: >> Date: 15. nov 2010 17.41.34 CET >> >> 69 seconds later. But why? None of the 3 other UPSes reports any power >> loss. What is the problem? >> >> So I made some scripts that logs the input, output and frequency at the >> time of power loss, but they show nothing strange. Today results was: >> input 228.9 V >> output 228.9 V >> >> Today the UPS was a APC Smart-UPS 3000 RM, but I have seen it with other >> UPSes as well. >> >> >> How normal is my experiences? >> > Pretty normal if there are any Prolific usb parts in the path. Although 69 > seconds is a much longer time frame than I have encountered. If you are > using a ser-usb adaptor, I have found the FTDI parts considerably more > dependable in that regard. YMMV or course.
This one is connected using USB directly. One other UPS is on that server using a usb2serial device. JonB _______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/nut-upsuser
