If you loose power to the IDMX then all lights will come on.
mmmm ... That may not be so good - if you are tapped on power or blow fuses.
Harrison
One good thing is where you can get power for the IDMX, either from a Wall Wort, or off another LOR product like a CCR, Controller, etc. Both the Wall Wort and power from another device can be connected to the IDMX and if you loss one the other takes over.
That is my setup in my workroom. I like to test everything to understand how it will work. Saves time outside trying to figure out why something is not working.