Hi Neil, 2011/10/6 Neil A. Hillard <[email protected]>: > Hi, > > I've been using NUT for many years to look after the UPS on my home servers. > Originally I was using a Compaq R3000 but that was replaced with an MGE > Pulsar Evolution 3000 about a couple of years ago because the Compaq one was > just too noisy! > > I'm just setting up a replacement server and would like to connect it using > a serial cable as I've found that the USB connection occasionally drops out > on the current server. > > Unfortunately there appears to be a lot of parameters missing from the > serial driver (using mge-shut) when compared to the USB driver (usbhid-ups) > and more importantly, output.voltage.nominal is reported at 72 Volts instead > of the correct 230 Volts. > > I've looked into the source code (I know a little C) but unfortunately I'm > unable to follow it completely to look at correcting the problem and perhaps > adding in the missing parameters (if they're available over the serial > connection. > > I've included below a debug output from mge-shut that shows the current > output voltage being fetched correctly but the nominal voltage coming back > incorrectly. I've also included the upsc output for both serial and USB > connections. > > If anyone could give me any advice as to why the nominal voltage is decoded > incorrectly (or even describe how it's decoded so I can investigate it > myself) then that would be appreciated. Advice on how to add the extra > parameters in would also be appreciated. > > Many thanks in advance, > (...)
I won't go in depth, but this is a known point: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=411864 This is also why I've developed the 'newmge-shut' driver, which shares a lot of code with the usbhid-ups one. FYI, SHUT stands for Serial HID UPS Transfer, which is basically HID (as in USB, so the same data) but over a serial link. the newmge-shut take over has been postponed for some time, but it's only due to a lack of time and formal testing, more than issues with this driver. And mge-shut is not really maintained anymore... could you please test again with newmge-shut, and report back? cheers, Arnaud -- Linux / Unix Expert R&D - Eaton - http://powerquality.eaton.com Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/ Debian Developer - http://www.debian.org Free Software Developer - http://arnaud.quette.free.fr/ _______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsuser
