On Fri, 23 Sep 2011 08:06:35 -0400, "vaughn"   
    wrote:   
      
   >   
   >"Johny B Good"  wrote in message   
   >news:op.v18u4so9kd9x7s@fred...   
   >...>especially as it was supplying a second   
   >> level of UPS protection from the protected mains sockets powered by my   
   >> SmartUPS 2000 (a 2KVA 1500W unit) that I keep in the basement.   
   >   
   >This is a good point.  I learned the hard way that feeding one UPS from   
   another   
   >is a very bad idea.  Think of every UPS not only as protection, but as a   
   >potential POINT OF FAILURE.  To reduce the inevitable failures, simply reduce   
   >the number of UPSs.  I suffered more than one unnecessary server outage before   
   >the lesson sunk in.  One layer of UPS "protection" is plenty!   
   >   
   >Vaughn   
   >   
   Some UPS units will complain loudly about being fed by another one too   
   - some don't like squarewave input.   
      
   As for the power usage and the "kill-a-watts" units readings - I gort   
   a replacement for my EM100, and  swings between about 33 and 40 watts   
   with the occaisional spike to 70 - I'll run it for a period of time   
   and see what the average consumption comes out to. The old unit   
   indicated over 60 watts, my guess is less than 35 watts. This is a   
   TRUE ONLINE dual conversion UPS, so it will draw significantly more   
   than a standby unit.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)