Hi Arjen, thanks very much for your comprehensive and helpful answers. Le vendredi 22 janvier 2010, Arjen de Korte a écrit : > > Unless you're running the SVN trunk (= development) version, it's > preferred to use the serial connection.
Good knowing. > Mostly true. If you have a serial port (natively, not via a USB to > serial converter) is probably the most robust way to connect to any UPS. That's the case. Even though many recent computers don't have a rear panel RS232 DB-9 socket, most motherboards, event recent, still do have at least 1 true RS232 pin-connector on the motherboard, so all that one needs is to add the DB-9 rear connector plate, which is always much better than any "USB- serial" adapter one may find, which will never be "true" RS-232. Even though my system's MB changes from time to time, I always preciously keep my RS232 DB-9 connector and ribbon cable ;-) > Sadly true. I have an Ellipse ASR 600 which also doesn't show a > measured value (but rather a static one). Which surprised me too. So that's a generic Eaton/MGE Ellipse series shortcoming :-/ Incredible to think about an UPS with communication capabilities that wouldn't be able to report a measured voltage :-/ > I assume you're using the 'mge-shut' driver, right? In this driver, > the parameters are actually timer (not delay) values which will start > running immediately after writing them. This is confusing at best. If > you only want to change the delay values, you must use the 'ondelay' > and 'offdelay' parameters in 'ups.conf'. Good knowing. Yes, that's "confusing at best" ;-) > You should always do your setup (and testing) with a non-critical load > connected. Testing with a live server is definitely not recommended, > unless you've prepared your server to lose power unexpectedly. Er... The idea was that I replaced an UPS with another on a production system... So it has to work on this system, and I am not rich enough (as a private individual) to purchase a test computer just for testing nut with the UPS I plan to connect to my existing server :-} Thanks again for all the helpful information. -- Michel Bouissou <[email protected]> OpenPGP ID 0xEB04D09C _______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/nut-upsuser
