Product Name: MDB-RS232 Adapter for Bill Acceptor to PC Model NO.: MDB-RS232 Change: With Small Change Charge System: Coin and Note Type: PC Adapter Power Supply: AC/DC 12-24v Product Description The vending machine standard NAMA Multi-Drop Bus (MDB) may now be interfaced to a PC using the MDB-RS232. The MDB-RS232 allows Coin Acceptance, Change Dispensing, smart card reader, magnetic swipe, credit card reader, bill acceptor and bill validation all controlled by the PC. Conforms to all NAMA MDB specification and is compatible with any MDB compliant vending device. Hardware interface comes with cables, user's guide and user's protocal.This Interface Unit (IU) is designed to convert the MDB Bill Acceptor (BA) and MDB Coin Changer (CC) protocol to RS-232 serial protocol. The IU functions as a slave to a master control system. The master may be any control system that supports RS-232 serial communication, for example a PC.How to order the samples directly ?Visit our online store: http://cnkiosk.aliexpress.com