Features: For connecting MDB coin receivers, banknote receivers and card readers. Not only can you use the computer RS232 port. You can also use for Android motherboard or any other motherboard with an RS232 or USB port. If you only have a USB port, you can use the extra USB to RS232 transfer box to create a virtual COM port on your PC or android board. Supports MDB, coin receiver, banknote receiver, cashess interface (10H and 60H) and USD (40H) interface. The MDB-RS232 allows the PC to control the coin acceptor, change dispensing, smart card reader, magnetic card, credit card reader, banknote acceptor and banknote verification. Compliant with all NAMA MDB specifications and compatible with any MDB-compliant vending equipment. The hardware interface comes with the cable, the user guide and the user's agreement. Up to eight (8) MDB-compatible devices can be connected to a single MDB-RS232. This interface adapter is designed to convert the vending machine MDB protocol to the RS-232 serial protocol. The adapter is used as a slave to the primary control system. The master device can be any control system that supports RS-232 serial communication, such as a PC. This adapter is designed to convert the MDB Bill Acceptor (BA) and MDB Coin Changer (CC) protocols into an RS-232 serial protocol. The IU is used as a slave to the primary control system. Specification: Condition: Brand New Color: Black Material: ABS Plastics Size: Approx. 100 x 50 x 30 mm/3.9 x 2.0 x 1.2 in Start Bit: 1 Data Bits: 8 Parity: NO Stop Bit: 1 Inter-byte: 1 ms Response (maximum): 50 ms Master polling times: 150 - 300 ms Time IU Waits for the Master's Poll Before Inhibiting Acceptance of the Ba (maximum): 3 second Min: 20 VDC Nominal 24-34V DC (or 24-30V AC) Maximum: 39V DC Consumes an Idle Current: < 0.05A Cable: Standard computer serial cable, Standard MDB cable Weight: Approx. 115 g/4.1 oz Package: 1 x MDB-RS232 Converter 2 x Connecting Cable