Complaint
MDB-RS232
Multi-drop bus (MDB) to RS232 or USB PC interface ( MDB-RS232 )Working with bill acceptor,coin validator, card reader,cashless defvice, for vending machine,kiosk machine,kiosk information machine
Package list:
One pcs MDB-RS232 adapter box
One pcs USB to RS232 adapter
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.
Up to eight (8) MDB compliant devices may be attached to a single MDB-RS232. The programming interface is user-friendly.
( For Pulse type Coin validator and bill acceptor to PC, please check:PULSE-PC adapter )
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.
DESCRIPTION:
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.
OPERATION:
The master and slave communication is based on master requests and slave replies. The master sends a status request (or command) to the IU and IU answers by sending its current status. The IU's typical response to the Master's request (polling) consists of a header and data bytes. If there is no BA or CC activity, the status is one byte, the header only. When the IU receives data from the BA or CC, it sends a header followed by data bytes in the response to master's status request. The master must always poll (query) the IU. If the IU does not receive a query from the master in the predefined time slot or IU does not recognize master messages 10 times in row, it will inhibit the BA and CC acceptance. At power up, acceptance of the BA and CC is inhibited.
Nomral Package List:
MDB-RS232 Adapter Board (1pcs)
MDB Cable From MDB-RS232 to Bill acceptor and Coin validator (1pcs)
RS232 Cable From MDB-RS232 to PC (1pcs)
Optional Parts:
Power Supply For MDB RS232 adapter board ( 24VDC 3A)
| Power input | DC24V |
| Interface to payment device | MDB |
| Interface to computer | RS232 |
| Payment device | Bill acceptor |
| Box type | ABS |
The MDB program is implemented according to the MDB specifications as stated in :
NAMA MDB / ICP protocol specification
Supported by the NAMA, EVA and EVMMA organizations.
Version 1.0 October 14, 1998
This protocol can be obtained from the NAMA organization
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