Half-duplex (HDx) is a telecommunication system which is: a. half digital and half analog; b. half wire-line and half-wireless; c. unconditionally two-way; d. half two-wire and half four-wire; e. two-way with alternation.

Half-duplex (HDx) is a telecommunication system which is: a. half digital and half analog; b. half wire-line and half-wireless; c. unconditionally two-way; d. half two-wire and half four-wire; e. two-way with alternation.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

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ISBN:9781337399128

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Chapter17: Commercial And Industrial Air-conditioning Control Systems

Section: Chapter Questions

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Concept explainers

Fiber Optics

Fiber optics is a technology used to transmit the facts such as light or pulses with fiber or plastic over long distances. Visual fibers are about the width of a human hair strand and, when tied directly to a fiber-optic cable, can transmit multiple long-distance records and faster in different ways.

Question

Half-duplex (HDx) is a telecommunication system which is:
a. half digital and half analog;
b. half wire-line and half-wireless;
c. unconditionally two-way;
d. half two-wire and half four-wire;
e. two-way with alternation.

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