... . Mini RF module for integrating into existing devices 2. Multi-interface: RS232, RS485, USB, TTL, SPI, C&D, ABA1/2, Wiegand CN3XX( ... expandable on request3. Multi-interface: RS232, RS485, USB 2.0, TTL, SPI, Clock & Data / ABA1,2 / Wiegand26-584. Compliant with CCID to eliminate ... tuner to adjust reading distance as optional.Customized service on module and antenna (size, position, etc) is available on ...