UPS for XENIX

[Mike Sanfratello]

I'm looking for a UPS to run on an NCR 386 (10mhz) under SCO XENIX 2.3.1.  
I am looking for the type with the AT Bus adapter that will be notified
from the UPS when power outage occurs and can in turn notify software to
sync the system and shut it down.

Could someone out there email me any experiences with such devices and their 
manufacturers/pricing/features?

Thanks in advance,

mike (mcs at fps.com or {...}!ucsd!celerity!mcs)