Digi XBee® RR RF Module Hardware Reference Manual
5
Serial communication specifications
Electro Static Discharge (ESD)
IEEE 802.15.4-specific specifications
Networking and security specifications
Communication interface specifications
Pin signals for the XBee RR micro module
Design notes for RF pad devices
Copper keepout for test points
FCC-approved antennas (2.4 GHz)
FCC publication 996369 related information