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HDBaseT from A-Z: Glossary of Terms

Learn the lingo of HDBaseT with nearly 30 terms in this reference guide of terminology.

CE Pro Editors · July 17, 2014

They say you can’t tell the players without a scorecard. In the world of HDBaseT, it’s the lingo you need a reference card for.

To help integrators understand the installation directions commonly associated with HDBaseT applications and equipment, here is a hand reference guide of terminology.

5Play — A feature set of HDBaseT that enables delivering of video, audio, Ethernet, control signals and power over a single 100m/328ft Cat 5e/6 cable.

AFE (Analog Front End) — The analog portion of a circuit that precedes analog-to-digital conversion.

BER (Bit Error Rate) — The number of bit errors divided by the total number of transferred bits during a specific time interval, where bit errors is the number of received bits over a communication channel that have been altered due to noise, interference, distortion or bit synchronization errors.

CCTVoC (CCTV over CAT) — Based on HDBaseT technology, delivers uncompressed full HD video, audio, power, and control signals over a single 150m/492ft Cat 5e/6 cable.

CEC (Consumer Electronics Control) — An HDMI feature enabling control of up to 15 CEC-enabled devices connected through HDMI by using one of their remote controls.

DDC (Display Data Channel) — A collection of protocols for digital communication between a computer display and a graphics adapter that enables the display to communicate its supported display modes to the adapter and that enables the computer host to adjust monitor parameters, such as brightness and contrast.

DSP (Digital Signal Processing) — The mathematical manipulation of an information signal to modify or improve it in some way. The goal of DSP is usually to measure, filter and/or compress continuous real-world analog signals.

EDID (Extended Display Identification Data) — A data structure provided by a digital display to describe its capabilienables ties to a video source.

E-EDID (Enhanced EDID) — Introduced EDID structure version 1.3, which supports multiple extensions blocks and the deprecated EDID version 2.0 structure.

HDCP (High-bandwidth Digital Content Protection) — An authentication system designed to protect copyrighted audiovisual content.

HPD (Hot Plug Detect) — One of the HDMI control signals. The HPD signal is a sink device output that is sent toward the source, indicating that the sink E-EDID memory is available for reading.

I2C (Inter-Integrated Circuit) — A two-wire, low-speed, serial data connection IC bus used to run signals between integrated circuits, usually on the same board.

IC — A semiconductor device that combines multiple transistors and other components and interconnects on a single piece of semiconductor material.

LAN (Local Area Network) — A computer network, usually within a single building, that connects computers, file and mail servers, storage, peripherals and other devices in a way that enables data and resource sharing.

MAC Address — A hardware address that uniquely identifies each node of a network, as in IEEE-802 (Ethernet) networks. The MAC layer interfaces directly with the network medium.

MII (Media Independent Interface) — A parallel digital bus used for 10Mbps and 100Mbps Ethernet.

OSI model (Open Systems Interconnection model) — A conceptual model that characterizes and standardizes the internal functions of a communications system by partitioning it into abstraction layers.

PAM (Pulse Amplitude Modulation) — A form of signal modulation in which the message information is encoded in the amplitude of a series of signal pulses.

PD (Powered Device) — A device that receives its power from a PSE over an Ethernet cable.

PDIF(Programmable Data Interface) — A general-purpose interface that serves as an information pipeline with a predefined capacity.

PHY — Physical layer of an OSI model.

PoE (Power over Ethernet) — The delivery of power to a remote device using the same cable lines used to deliver Ethernet data. This enables a single cable to provide both data and power to devices.

PoH (Power over HDBaseT) — The delivery of power from a source to a sink device over a standard Cat 5e/6 cable.

PSE (Power Sourcing Equipment) — A device that sends power to a PD over an Ethernet cable.

RMII (Reduced Media Independent Interface) — A standard developed to reduce the number of signals required to connect a PHY to a MAC.

RTF (Recognized Testing Facility) — A facility capable of performing HDBaseT Compliance Tests for new HDBaseT-enabled devices.

TMDS (Transition Modulated Differential Signaling) — A technology for transmitting serial data at very high speeds. TMDS is a core technology used in both DVI and HDMI.

UTP (Unshielded Twisted Pair cable) — Found in many Ethernet networks and telephone systems, UTP cables are the most common cables used in computer networking.

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