UPS Monitor Daemon version 1.0 has been released (1/7/2005). This is a small VIO program that monitors a UPS connected to a serial port, logs power events and performs a graceful shutdown of the operating system. There are versions of UPS Monitor for APC models Back-UPS Pro, Smart-UPS and other APC smart signaling UPS; APC models Back-UPS and Back-UPS Office simple signaling UPS; Guardian On Board PowerCard UPS; and contact closure UPS models by Tripplite (INTERNET Office model 500 and 700) and IBM (Professional Office models 500 and 700).
http://home.att.net/~LPAInfo/upsmonitor.html
Source: OS/2 Warp News and Rumors