Product Info

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3. SR-MU921B principle description
SR-MU921B is a high performance UHF RFID Reader Module,
which is designed base on a high integrated RFID Reader chip,
with low cost effective and small size. It meets EPC
Gen2/ISO18000-6C tag protocol which is an international RFID
standard.
The follow diagram shows the principle of the SR-MU921B.
There are several circuit unit, including Communication Port,
Power unit, MCU unit, Reader Chip unit, Transmit Path unit,
Receive Path unit, Coupler and RF Antenna unit.
 Communication Port
Communication Port provide the communication function
between the reader module and the host from outside the reader
module. There are two kind of communication port. One is a UART