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MDB CONVERTER VENDING SERIAL
MDB CONVERTER VENDING SOFTWARE
MDB CONVERTER VENDING CODE
MDB CONVERTER VENDING PC
MDB CONVERTER VENDING WINDOWS

It must be through the MDB converter and the backstage code that modifies the MDB’s communication protocol.

MDB CONVERTER VENDING SERIAL

The barcode scanner’s common interface is USB or RS232 serial port.So when you want to achieve the barcode scanner connect with vending machine, So how does the barcode scanner module connect to a vending machine through an MDB protocol? Finally, people align the barcode scanning window for scanning and they can complete the payment.

When people choose their own drinks or snacks at a self-service vending machine, they can turn on their mobile APP “third-party payment software” from mobile phones, such as Alipay or wechat, to display the screen payment QR code from their mobile phone.

MDB CONVERTER VENDING WINDOWS

With the popularity of mobile payments, nowadays many young people go on a trip only with mobile phone, because they don’t need to carry cash.When they want to buy a drink or snack in vending machine, they only put the mobile phone in front of the windows of barcode reader from vending machine, and then they will get their drinks or snacks after they paid. MDB compliant smart card readers can now be accessed.Source：Powered | Author:admin | Time：　|　Views：3069 This now makes it possible to accept and dispense any coin types including foreign currency and Euro Dollar (when available). The MDB-RS232 protocol is compatible with standard RS-232 Protocol.Ĭoin Acceptors/Dispensers and Foreign Currency:Īny MDB compliant device may be interfaced to a PC. Future support may include Universal Serial Bus.

MDB CONVERTER VENDING PC

The MDB-RS232 interfaces any MDB vending device (6-pin molex/5pin MTA) to the PC via the serial port (DB-9).

Additionally, all commands can be sent to the MDB device from the PC (ie.

All data from an MDB device is available to the PC.

This methods allows the PC to perform normal operations and respond to interrupt driven comm events in the UART buffer.

The MDB-RS232 takes care of the polling requirements and generates an interrupt on the serial port of the PC.

A non-dedicated PC can not meet the polling requirements.

The polling requirements for the various MDB devices are excessive (20-200 ms).

The MDB uses 11 Bits and a nine (9) bit byte.

The MDB-RS232 is necessary to interface the industry standard MDB Vending machine protocol to a standard PC because: The MDB-RS232 also relieves the Polling requirements thereby allowing the same PC to perform other tasks. The MDB-RS232 is a microprocessor controlled hardware interface with embedded firmware that converts the MDB protocol to an RS232 protocol and also performs the necessary voltage conversion.

MDB CONVERTER VENDING SOFTWARE

The "Multi-drop Bus" (MDB) protocol is not compatible with the standard RS-232 PC protocol and therefore a hardware and software interface is necessary.

MDB stands for "Multi-Drop Bus" and is a protocol developed by vending machine industry. What is MDB and Why do I need the MDB-RS232 ? At power up, acceptance of the BA and CC is inhibited. 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. The master must always poll (query) the IU. 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. If there is no BA or CC activity, the status is one byte, the header only. The IU’s typical response to the Master’s request (polling) consists of a header and data bytes. The master sends a status request (or command) to the IU and IU answers by sending its current status. The master and slave communication is based on master requests and slave replies. The master may be any control system that supports RS-232 serial communication, for example a PC. The IU functions as a slave to a master control system. This Interface Unit (IU) is designed to convert the MDB Bill Acceptor (BA) and MDB Coin Changer (CC) protocol to RS-232 serial protocol. Working with coin acceptor,bill acceptor, card reader,cashless defvice, for vending machine,kiosk machine,kiosk information machine Multi-drop bus to RS-232 (MDB2PC) (MDB-RS232) to MDB coin acceptor ,bill acceptor and card reader ,cashless device