3: rs232 control port, 6: gigabit copper port, Led indicator – RGBLink Driver User Manual User Manual
Page 24: Usb control port of sending card, Dvi input, Hdmi input, 10,11: power interface and switch, Hardware orientation

2. Hardware Orientation
Driver Back Panel
Driver User Manual 24
2. 3: RS232 Control Port
2: OUTPUT is serial female port.
3: INPUT is serial male port.
RS 232 INPUT connect serial communication interface of RS232 control
protocol. RS232 OUTPUT is serial communication interface of multiple
devices cascading control, can connect devices through DB9 serial cable.
It can cascade 4 sets of devices currently.
4. 6: Gigabit Copper Port
Connect to LED screen through cable.
5: LED Indicator
Red: Power indicator, it lights when device has power supply.
Green: Signal indicator, it lights when device has signal input.
7: USB Control Port of Sending Card
Use can connect PC via USB cable and control sending card software.
8: DVI Input
DVI input. Input the video signal from computer, DVI signal generator.
Connect to the same DVI interface.
(This Connection does not support hot-plugging).
9: HDMI Input
HDMI input. Input the image signal from computer.
10,11: Power Interface and Switch
AC 85-264V 2A 50/60Hz IEC-3 power interface.