Description：

The master control board is used for data exchange between the broadcast controller and the system controller. It supports reporting the working status of the device, such as online status and fault status.

Feature：

* Support data interaction with the system controller.

* Report the working status of the device: online status, fault status, etc.

* Support local MP3 decoding function.

* Support plugging and unplugging of any board in the broadcasting cabinet.

* Support hot swapping of boards.

Specification：