If I run PoE and connect a 24VDC source to the terminal block I read in the manual that the router chooses the source with the highest voltage for the power source. Is this the case for the Edgepoint 6 as well or only for the higher spec models? I want to connect a solar charged battery bank to the 24VDC terminal block as a UPS when mains power fails in order to maintain the connection through the devices. I was going to limit the voltage on the charge controller just below the voltage of the PoE source in order for it to cut over to the battery source when mains power fails.