Connect one HDMI cable between source device and TX Extender, the max cable distance is 10 meters; Connect one HDMI cable between display device and RX Extender, the max cable distance is 15 meters; Connect single cat-5e or cat-6(recommended) cables instead of HDMI cables between TX and RX Extender, the max cable distance is 60 meters; Plug the IR receiver cable into the receiver.and IR transmitter cable plug into the transmitter if you need the IR receiver cable,aim at the equipment which needs to control. Plug the IR receiver cable into the receiver.and IR transmitter cable plug into the transmitter if you need the IR receiver cable,aim at the equipment which needs to control.