... devices 2. Multi-interface: RS232, RS485, USB, TTL, SPI, C&D, ABA1/2, Wiegand CN3XX(S)(T)-X 13.56MHz Reader ... upgradable10.Firmware customized design to meet various requirement Application1. Embedded device, such as Handheld Terminal, Parking Meters, Vending Machines, Banking Terminal2 ... Mini RF module with RS232, RS485, USB, TTL, SPI, C & D, ABA1/2, Wiegand