... RF module for integrating into existing devices 2. Multi-interface: RS232, RS485, USB, TTL, SPI, C&D, ABA1/2, Wiegand ... ) SAM socket for enhanced security, expandable on request3. Multi-interface: RS232, RS485, USB 2.0, TTL, SPI, Clock & Data / ABA1, ... subject to change without notice. Further Application DevelopmentCNReader SDK is software development kit worked with CN3XX and CN6XX product series for ...