David Dyer-Bennet wrote: >No, the normal way to monitor the discrete ouput (stupid) UPSs has >always been through a serial port (but not with a standard serial >cable). There are a bunch of lines you can directly monitor and >control on a serial port -- DCD, DTR, DSR, CTS, RI, stuff like that. Yes, that works too, I just didn't know you were hardware hacking that much.:) David Dyer-Bennet also wrote: >I think I've got a valid cable. I can see on the breakout box how >various lines change state when the UPS changes state. OK, sounds like you got your cabling under control, back to the software. ( Something I don't know anything about!) Good Luck. John