... devices 2. Multi-interface: RS232, RS485, USB, TTL, SPI, C&D, ABA1/2, Wiegand CN3XX(S)(T)-X 13.56MHz Reader ... is software development kit worked with CN3XX and CN6XX product series for second development. It includes API, Host Demo, user manual ... Mini RF module with RS232, RS485, USB, TTL, SPI, C & D, ABA1/2, Wiegand