Suppose that a company (CoA) develops and sells equipment which comes with a software system (SysA) to run it. This equipment is built using associated hardware (HwB) developed by another company (CoB).
Suppose that the company (CoB) developing this associated hardware is running it using SysB, which is open source software (OSS), specifically SysB is provided under an MIT license. Suppose that SysA does not link the binary of SysB. Suppose that SysB has a GUI, and displays the license text. However, SysB's GUI is hidden inside the equipment and the customer usually cannot see it.
In such a case, is CoA redistributing SysB? Must CoA present the license to the customer, eithe when SysA runs, or as part of the documentatuion, or in some other way ?