JMY612 series are RFID reader/writer module with RS232C serial ports. JMY612 has various functions and supports multi ISO/IEC standard of contactless card; the cards from different suppliers. The designer combined some frequent used command of RF card and then user could operate the cards with full function by sending simple command to the module through RS232C interface. And the module and antenna are separate design. The impedance between RF module and antenna was tuned by impedance analyzer. And then the module has excellent performance and stability. The module and antenna is linked by 50ohm coaxial line. The performance is good, though the wire can reach 10m. Normally the wire should be 60cm that is the module's best performance and stability.

    Qualifications:
     PCD: NXP RC531, RC632
     Working frequency: 13.56MHz
     RF standard: ISO14443A, ISO14443B, ISO15693
     Anti collision ability: Full function anti collision; be able to process multi-cards simultaneously; be able to set operate single card only
     Auto detecting card: Supported, default ON
     SAM card slot: 4 slots, 9600bps--115200bps
     EEPROM: 512 Bytes
     Interface: RS232C
     Communication rate: 19200--115200bps
     Max.command length: 1024 Bytes
     Interface level: 3.3V(TTL level; 5V tolerance)
     Power supply: DC 5.0V
     Power consumption: 150mA
     Dimension: 87mm×65mm×10mm
     Weight: about 50g
     Operating temperature: -25 ~ +85 ℃ (-77 ~ +185°F)
     Storage temperature: -40 ~ +125 ℃ (-104 ~ +257°F)
     ISP: Supported
     RoHS: Compliant