Xbee Pixhwak Telemtry

I have a problem with connecting my telemetry to a pixhawk 1.0. My telemtry is Xbee programmable
with XB24CZ7SITB003 part number. I build serial bypass example on Xbee module and change it’s baudrate to 57600, but i couldn’t connect between GCS and Copter (or Tracker). Please help me.