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Glossary

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Term Description
Half Duplex Refers to the transmission of data in one direction at a time, typically over the same signal path. In RS-485 networks, commonly called two-wire communication.
HDMI Acronym for High-Definition Multimedia Interface. A compact audio/video interface for transmitting a video signal, up to eight audio channels, a consumer-electronics control signal, and an Ethernet data connection.
High Impedance 1. A high resistance that reduces current flow. 2. A third state in special logic devices that "disconnects" them from a bus.
High Side Switch A switch that makes a connection directly to power at a higher voltage than that at the controlled load.
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