four-wire circuit


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four-wire circuit

[′fȯr ‚wīr ′sər·kət]
(communications)
A two-way circuit using two paths so arranged that communication currents are transmitted in one direction only on one path, and in the opposite direction on the other path; the transmission path may or may not employ four wires.
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References in periodicals archive ?
A four-wire circuit is designed to offer one pair of wires for sending information and another pair for receiving information.
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The concept of instantaneous active and reactive power was first elaborated in Japan in 1982, and has been considerably modified since then for three-phase four-wire circuits, circuits more than three-phase, and power electronics equipment.
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544-Mb/s TI/datacom tester as well as an analog transmission impairment tester for two- or four-wire circuits.
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A new Permanent Series ground fault circuit interrupter is rated for applications up to 30 A and can be configured for 120-V or 240-V, three- or four-wire circuits.
Ground fault circuit interrupter

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