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Instead of blowing $100+ on a brand new UPS, I decided to try to resuscitate the ancient CPS350SL that got me through college and grad school. One $7 sealed lead-acid battery later and it's back in business and working like a champ.
The other (equally important) half of the UPS equation is software; I'd like my Mac Mini to recognize the imminent blackness and dismount external drives, hibernate, etc. Unfortunately, ye olde CPS350SL lacks a USB connection; it's RS-232 only. I have an RS-232 to USB adapter, so the connection is a non-issue.
My question: How do I get Energy Saver within Snow Leopard to recognize my RS-232 based UPS?