How to Quick Start to use WAFER MDB USD interface adapter
http://www.waferstar.com
Service skype: wafer-service
Introduction:
USD-MDB is used to connect the PC to MDB interface of vending machine and working as a
USD interface adapter.
Before using it, you must first know that your vending machine supports the USD interface.
Even most machines on the market are not supported. So don't assume that your own
machine is supportable.
USD-MDB will reply the VMC Poll command (42H) automatically,
so user don’t need to
consider the Poll command. Any data from VMC except the poll command will be redirected
to RS232 port.
Any data if you want to send the HEX data to VMC,just send to adapter box together with
checksum ,then the adapter box will send to VMC during the VMC poll request.
For technical details and the protocol specification, please refer to
Any other questions,you can add wafer online service skype: wafer-service
MDB Adatpers and interfaces description:
(1)
MDB connector (male or female connector) should be connected to VMC
(2)
DB9 Com port need to be connected to RS232 port of PC or other devices
