Some devices have a built-in display which can be used for reporting status, configuration menus and a lot more.
There are two sets of APIs for controlling the display:
•GUI
The GUI API is only supported on NX32L devices and most of the API is only available on the NX-400.
The system menu functionality is available on all NX32L devices with a display.
•Simple display
The simple display API is supported on all devices with a display.