TPS2121: 24V power management capabilities?

My board requires 24V power. They can either hard wire a 24 volt power supply or they can power it using POE through the ethernet jack. I am wanting to protect the board and have it switch to the hard wire mode if a POE and 24 volt is hard wired together on accident. 

Any suggestions on a power mux that can handle this or any other part that can work to handle this. I do not see any power mux that can handle 24V, but maybe I am looking at the wrong part.

Thanks in advance.