Xbee S2C

I have just purchase Xbee S2C from aqtronics which had USB connectivity and I am unable to configure it using X-CTU. Please help me how to configure it and use.

Hmm, sounds like a Windows problem … or of you are a Mac or Linux user … that is your problem.

For USB to work, you need the correct computer drivers. The S2C will default to either 9600 or 115kbps, plus non-API mode. I have no idea who/what aqtronics is, but they may changed the defaults and/or limited your ability to talk to the S2C directly.