OPC

FAQ

• AIDL_Service_Demo&Guide.zip

This file is applicable for scenarios where application development on a POS terminal is required, involving direct calls to the OPC Payment AIDL Interface. (适用于需要在POS机上开发应用，这种情况下，直接调用OPC Payment AIDL Interface.)

• OPC_Serialport_Guilde&Demo.zip

This file is suitable for scenarios where no application development on the POS terminal is needed. Instead, the Vendor Machine communicates directly with the OPC Payment Interface. In this case, communication between the POS terminal and the Vendor Machine supports serial port, MDB (Multi-Drop Bus), and Socket protocols. (适用于不需要在POS机上开发应用，上位机直接和OPC PaymentInterface通讯。这种情况下，POS机和上位机之间支持串口，MDB，Socket通讯。)

• OPC操作文档.pdf
• OPCUserGuide.pdf
• MDB_Version_4-3.pdf