Half Duplex

What Does Half Duplex Mean?

Half duplex (HDC) is a type of system that enables bidirectional data or voice communication between two nodes, where both end nodes send or receive data one node at a time.

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Techopedia Explains Half Duplex

HDX uses a single path of communication for sending and receiving and is like a one-lane road, where only one car can move in one direction at a time, while a car at the opposite end of the lane must wait before driving. Similarly, HDX-based systems can send or receive in only one direction at a time and must wait for the completion of in-process communication before using the same channel to transmit in the opposite direction.

A Walkie Talkie is an example of a HDX device, where only one person at a time may talk or listen while using the device.

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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…