Xbee End device

I have one RS-232 and one usb board. I have connected one xbee with USB board and other with rs-232 board. They are able to communicate with each other. I wanted to ask suppose if i will configure one xbee as a end device/router. Then remove it from those boards and then give a separate power supply to Pin 1 and 10 then the communication is possible? i.e. if these xbee can work as a stand alone module or i have to connect microcontroller with xbee to make it as a end device?