Operational Description

FCC ID: TQ4YWGIT-R5678904

Operational Description

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FCCID_1046026

                      System Description
1.   System Module Block Diagram




             Diagram1 System Module Block Diagram

     XCRF-502E Reader, together with the antennas, tags and a
PC (personal computer), forms a complete application
environment for the Reader, in which under the control of the
PC, the baseband unit sends instructions to the RF unit, by
which relevant instructions will be send according to the types
of the tags. After receiving the instructions, the tags will
feedback relevant information; after being amplified and shaped
by the receiving circuit, the information will be sent to the
baseband unit for decoding; and the decoded data will be sent to
the PC via the communication port of the baseband unit.


    The transmission part of the RF unit is in charge of
generating, modulating, amplifying and transmitting carrier
waves. Its receiving part is in charge of demodulation,
amplification and comparison.
    The baseband unit is in charge of coding and decoding the
data of the tags and communication with the PC.


2.Reader Baseband Module Block Diagram




         Diagram2 Reader Baseband Module Block Diagram

   Þ Receive the control instructions and data sent by the PC
      via the RS-232 or network port, or send data and
      implementation results to the PC;
   Þ Send tag control signals to the RF unit;
   Þ Receive the tag data signals that the RF unit feedbacks for
      decoding and check;
   Þ Modify and query the configuration information of the


      Reader by the instructions from the PC.




3. Reader RF Module Block Diagram




            Diagram3 Core board Module block diagram

   Þ Receive the tag signals from the baseband unit and
      modulate     microwaves,      amplify     the    modulated
      microwaves and transmit them through a specified
      antenna with an electronic switch;
   Þ Receive the signals feedback by the tags for compared
      output after modulation and amplification;
   Þ Adjust the output powers and frequencies of the antenna
      ports according to the instructions from the baseband unit.


4.Power Module Block Diagram




                     AC/DC        EMC
                     Module       Filter




                     Voltage   Anti-Thunder
                      adjust     Module




                      +5.0V     Input85~ 265V


             Diagram4 Power Module Block Diagram

   Þ Transform AC input voltage into DC output voltage, to
      provide DC power to the Reader.



Document Created: 2008-11-19 14:24:07
Document Modified: 2008-11-19 14:24:07

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