8 Jan
2013
8 Jan
'13
2:17 p.m.
Have you considered disconnecting the computer from the UPS, then connecting the serial to the computer or another computer and then running the UPS software in a debug mode? I'd have to boot up my Pentium 133 dinosaur to figure out how I did it last time, but the UPS app I was using had a debug mode.. I then simulated power failure etc. (turned off UPS at wall, let it run flat etc.) and watched how the serial lines changed (it switched the status lines from hi to lo etc. as opposed to actually sending data) then configured the software to match the observed behaviour. I dunno.. seems a shame to throw away a working UPS if this is the only problem.