Connect Power connector from Power supply (110-240V 1.2A IN & 12V 1A OUT).
Connect a source via HDMI input cable to ANY HDMI input.
Connect any other HDMI, sound, IR or RS232 cable that you might need (optional)
HDMI cable must support 18Gbps if any 18Gbps source/sink is connected (except for TX1 & Audio Out)
HDMI/HDCP 1.x devices must be connected to 1080p SDR Downscale TX1 Output
Make sure that you are using 600MHz certified or tested HDMI 4K cable if you plan to set up a 4K60 4:4:4 8b/ 4K60 4:2:2 12b 600MHz/18Gbps link in your setup.