If I disconnect the cable, and then run (as root) apc-upsd I get an answer, although it's "zero" stats. Does that say anything?
# apc-upsd /etc/apc-upsd.conf, 55 lines: ========================================== device ............... /dev/ttyb pidfile .............. /var/run/upsd.pid exec script .......... /sbin/halt debug mode ........... 1 wait seconds ......... 15 infotime seconds ..... 3600 smartmode ............ 1 extended smartinfo ... 1 startuptest .......... 1 not forking in debug mode ... battery load : 0.00 % voltage : 0.00 volt line min. : 0.00 volt line max. : 0.00 volt load : 0.00 % line freq : 0.00 HZ output voltage: 0.00 volt temperature : 0.00 degrees celsius battery volt. : 0.00 volt status : 0
