The HDMI-STP-TR-RS is a twisted-pair-cable HDMI transmitter and receiver. These devices are high quality twisted-pair HDMI, RS-232 (bidirectional), Ethernet and IR signals receiver and transmitter based on HDBaseT technology. Transmitter converts HDMI, RS-232, Ethernet and IR signals into a twisted pair signal. The receiver converts the twisted-pair signal back to output HDMI, RS-232 and IR signals. Based on the transmitter/receiver pair, a twisted-pair HDMI/data signal transceiver system can be formed. They can also be individually connected to other HDBaseT certified devices to form a transceiver/receiver system.