On Wed, Oct 11, 2006 at 06:48:57AM -0500, Alejandro Lengua wrote: > I have seen several public Bids for PBXs in my country and > most of them include the requirement of a set for energy backup > based on batteries or a UPS. > > Have anyone faced a requirement like that? > What equipment do you use in these cases? A UPS?
It depends, as others have noted, on how much stuff you have to run, and how long you have to run it... and it depends a lot on regulatory issues related to whether your phones are serving, say, people in a rental property like a hotel. On larger systems like that, particularly if you're driving lots of remote phones and you're in a life-safety kind of environment (and if you don't have a *firm* handle on what "life-safety" means, and "who says so", run, do not walk, to hire someone who does :-), you're probably going to find yourself *building* a UPS, with lots of big deep-cycle batteries, and independent charger and inverter/rectifier boxes. This can be an advantage, because it's easier to size the components appropriately if they're individual items. Cheers, -- jra -- Jay R. Ashworth [EMAIL PROTECTED] Designer Baylink RFC 2100 Ashworth & Associates The Things I Think '87 e24 St Petersburg FL USA http://baylink.pitas.com +1 727 647 1274 "That's women for you; you divorce them, and 10 years later, they stop having sex with you." -- Jennifer Crusie; _Fast_Women_ _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz
