Gigabit Ethernet port, used to connect the sending card or receiving card, the same two network ports are interchangeable
Power interface, can be accessed with 4.5V ~ 5.5V DC voltage
Work indicator, D1 flashes to indicate that the control card is running normally
D2 flashes quickly to indicate that Gigabit has been recognized and data is being received.
Test button,used to test display brightness uniformity and display module flatness.
External indicator light, run light and data light,
HUB75Eport, connect to the modules.