I believe all APC upses qualify in that regard. Conditioning should refer to methods of ensuring that transients and other oddities from the power line never reach the equipment plugged into them.
My understanding is that all APC upses (and most other "good" upses) are of the variety that the line power only serves to charge the batteries - nothing more. The batteries subsequently feed constant power into the inverters which create the 110VAC (hopefully a sine wave) to power the equipment. Therefore at no time are the products plugged into the UPS ever connected to the line current and therefore not subject to stuff outside affecting your equipment. The analogy used to explain it to me was filling a bucket (batteries) with water with a fixed size hole in the bottom (VA rating of the UPS). As long as some volume of water is retained in the bucket, you can fill the bucket evenly or sporadically but the flow rate out the hole remains the same. If my understanding of this is full of crap, please let me know :-) -dbc -----Original Message----- From: Frank Bax [mailto:[email protected]] Sent: April-07-09 3:00 PM To: [email protected] Subject: [biz] UPS: power conditioned In the Asterisk book from O'Reilly; it says "Make sure your UPS is power conditioned. If it doesn't say exactly that, it isn't." http://astbook.asteriskdocs.org/en/2nd_Edition/asterisk-book-html-chunk/aste risk-CHP-2-SECT-2.html#asterisk-CHP-2-SECT-2.1 I don't see this wording on any UPS devices from APC; do they sell one? If not, who does? Frank --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
