two-wire circuit


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two-wire circuit

[′tü ¦wīr ′sər·kət]
(electricity)
A metallic circuit formed by two conductors insulated from each other; in contrast with a four-wire circuit, it uses only one line or channel for transmission of electric waves in both directions.
References in periodicals archive ?
In contrast, the test leads in a simple two-wire circuit contribute sufficient uncertainty to the resistance measurement that readings below a few tenths of an ohm are only approximate.
A switched channel is typically a two-wire circuit fixed at one end to a user station and connected at the other end to a communication switch.