[Asterisk-Users] UPS for Asterisk

[Peter Svensson]

On Mon, 24 Jan 2005, steve szmidt wrote:

> The days of shoddy UPS's are long gone, unless you always buy the cheapest 
> stuff you can find all the time. In which case you might be able to find 
> something crappy. APC gives good support and make decent UPS's at a decent 
> price.

The SmartUPS ups's from APC that are >= 1kVA seem to be of a lot better 
quality then their smaller siblings. We have lost none of the 1kVA or 
larger ups:es while several of the smaller ones have died of electronics 
failures. The larger ups's seem to have 5-year batteries while the smaller 
ones have 3-year batteries.

APC use delta conversion technology which means that they are efficient, 
but cannot correct some errors and have to fall back to the batteries. 
This trade off may be good or bad. As usual do your research before 
buying.

Peter