devices such as smart TVs, or enable computers and other CE devices to communicate with each other and access multimedia content on the local network. HDBaseT 3.0 increases this capability to 1000 Base-T (Gigabit) Ethernet. USB HDBaseT 2.0 introduced support for USB 2.0, with a capacity for the simultaneous connection of up to 7 USB devices and a transfer rate up to 190 Mb/s. HDBaseT 3.0 increases this to 350 Mb/s. Control signals HDBaseT delivers HDMI Consumer Electronics Control (CEC) protocol signals that control basic functionality such as power-on, power-off and play/stop, along with RS-232 and consumer IR (remote control) commands. Power HDBaseT can provide a variation of Power-over-Ethernet (PoE) standard called power-over-HDBaseT (PoH). This can provision up to 100 W of operating DC power to CE devices, such as monitors and TVs. In practice, if a display (typically up to 60" in size) is enabled as a 100W powered device (PD), and is connected to a matching PoH transmitter (power sourcing equipment, PSE), the display will be able to draw its operating power through the HDBaseT link and not require a separate power connection. HDBaseT Versions Specification 1.0 HDBaseT 1.0 utilizes 16-level Pulse Amplitude Modulation (PAM-16) encoding for downstream data at a rate of 500 MSymbols/s, achieving an aggregate data rate of 8000 MBit/s on 4 lanes. This is equivalent to the 8160 MBit/s of HDMI 1.3/1.4. The HDBaseT auxiliary channel operates with PAM-8 encoding at a rate of 12.5 MSymbols/s for an aggregate 150 MBit/s. The 5Play feature set of HDBaseT 1.0 delivers video, audio, Ethernet, control signals, and power over a single connection. It does not support USB. The minimum compatible cable type is Cat 5e, although Cat 6 is recommended. Termination is 8P8C modular connectors. Length potential is at 1080p, and at UHD 4K. Specification 2.0 HDBaseT 2.0 maintains PAM16 encoding and an aggregate data rate of 8 Gbit/s. However, the auxiliary channel rate was doubled to 25 M symbols/sec for an aggregate 300 Mbit/s. The increased rate predominantly supports USB 2.0 and separate S/PDIF audio. Additionally, version 2.0 specifies the HDBaseT network protocol, defining the required adaptations across all layers of the OSI model, to provide the optimized services for time-sensitive applications such as high throughput video and audio. Cabling recommendations for HDBaseT 2.0 remained the same, but the enhanced digital signal processing (DSP) and automatic repeat request (ARQ) for retransmission capabilities increase the reliability