1. Connect the switcher's input port to the HDMI signal source using an HDMI cable.
2. Connect the switcher's output port to the HDMI display device using an HDMI cable.
3. Connect a 5V power supply to the HDMI switcher.
4. Use an infrared remote control to freely switch between the four signal sources.
5. Alternatively, an RS-232 control system can be used to freely switch between the four signal sources.
