Dual rackmountable power supply?

Sat Apr 23 00:06:54 UTC 2005

On Fri, 22 Apr 2005, Mike Sawicki wrote:

> Do any of you know if there are companies who manufacture 1/2U
> rackmountable PDU's that take AC from redundant sources?  I have
> equipment at a colo that seems to have issues with one of the two
> circuits in my cabinets about once a month.  Since it would be a real
> pain in the neck for me to retrofit every server with dual-ps, I was
> thinking this could be a possible middle-of-the-road solution. Thanks.
This is called a "Static Transfer Switch". (Sometimes "automatic transfer 
switch", particularly for smaller units). Number of companies make small 
ones:

http://www.baytechdcd.com/cgi-private/showprod?prod=F5-RPC
http://www.baytechdcd.com/cgi-private/showprod?prod=ATS12-30
http://twinsource.net/
http://www.apc.com/products/family/index.cfm?id=14
http://www.mgeups.com/products/pdt230/sts/psts/stsa.htm