Connectiong rfid to pc

Dear all,
I brought parallax rfid 28140 & tag 8430806 from rs components. i am trying to connect this with pc by hyperterminal i am using max232 line driver.
When i connect the enable led goes red nothing get displayed when i keep tag in front of reader my configuration is 9600-8-N-1 i tried in 2400 also but not working i am using the attached circuit please help me friends


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