CQ-3780

The architecture of CQ-3780 comprises several key components designed to facilitate file transfers between Windows applications and mainframe systems using BSC over RJE. The core components include the BSC Communication Module, the File Transfer Engine, and the User Interface. The BSC Communication Module handles the low-level communication with the mainframe, managing the BSC protocol and session establishment.

The File Transfer Engine is responsible for managing the file transfer process, including data formatting, error handling, and data transmission. The User Interface provides a means for users to interact with the system, configure settings, and monitor the status of file transfers. These components communicate through internal APIs and message queues.

Configuration parameters are stored in configuration files, which specify communication settings such as device address, line speed, and other BSC parameters. The product does not use a database for persistent storage, relying on file storage for configuration and logging. Network requirements include a connection to a SNA Server product, which in turn connects to the mainframe.

The `SEND` and `RECEIVE` commands are central to the file transfer process, with the `STATUS` command providing connection status and diagnostic information.