User's Manual

→The unit receive data & command from PC via RS-232 interface,or send data &
results to PC ;
→The unit transmit control signals of tags to RF unit;
→The unit accept tag signals from RF unit, modulate signals and checkout;
→The unit can modify or query configure information of reader under the control of
PC command ;
3.1.3 Power unit:
→converts incoming alternating current (AC) to direct current (DC),out DC power
supply for the integrated equipment.
3.1.4 Data interface unit:
→Standard connector to connect the COM port ,network and power interface with
the rear panel of the integrated equipment ;
3.1.5 Case unit:
→The reader case is made of molded-in Aluminum.
3.2 Fundamental working principle
The complete RFID system is consist of XCRF-502C reader, antenna, tags, and
pc.
The baseband send the command to RF unit under the control of PC.RF unit
send signals to tags according to the tag type. When the tag is activated, it sends out
its number as well as other information .
The tags' response signals was amplified and shaped by the received-data
circuit. Then the signals was send to baseband unit. The baseband will decode the
received signal and then sends to PC via the communication interface of the
baseband unit.
The transmitting part of the RF unit will take the function of carrier generation,
carrier modulation, amplification and emission. The receiving part of the RF unit
will take the function of demodulation, amplify , compare etc.
The FPGA part of baseband will take the code/decode function to tag data.