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.
References in periodicals archive ?
The ship's port side had dropped five degrees at the moment I taxied between the 3- and 4-wires.
It will ship TouchTek4, a 4-wire resistive touch-input technology later this year, to break into this market, which has so far been dominated by smaller operations such as Nissha, Gunze and Dynapro.
Limited Tenders are invited for Rtd-Pt100, Simplex, 4-Wire, Class-A Acc.
The "PLUS" app also has 12 intercom keys and adds an analog audio port for 4-wire integration and three GPI/Os.
The interface programs through the host controller's (PLC) software, and is a direct interface to 3-wire, 4-wire, 5-wire, 6-wire, & half bridge LVDT sensors, and leading RVDT sensors.
The GX2065 is a full-featured, multifunction DMM that offers the capabilities associated with standard benchtop DMMs, including 2- and 4-wire resistance measurements.
0004 [degrees] C and boards for RTD connection (2-wire, 3-wire or 4-wire Ptl00, Pt500, Ptl000).
The liquid pump is available with 4-wire logic controlled, variable-speed (10%-100%), brushless motor/integrated driver as well as various wetted materials.
Responding to the market growth of wide-aspect ratio LCDs, a line-up of standard, wide-aspect ratio, 4-wire resistive touch panels has been expanded.
The new Model 1056-HT and 1056-DP 4-wire, dual-input analysers include complete HART[R] and Profibus[R] DP digital communications capability for full operations and maintenance advantages in plants using these digital protocols.