... for enhanced security, expandable on request3. Multi-interface: RS232, RS485, USB 2.0, TTL, SPI, Clock & Data / ABA1,2 / ... design to meet various requirement Application1. Embedded device, such as Handheld Terminal, Parking Meters, Vending Machines, Banking Terminal2. Application ... 2) Power supply (9V) (3) Serial communication cable (4) USB communication cable (5) Wires (6) Testing cards (7) Testing ...