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.
Featuring a standard-size DB9 connector, the adapter works with 2- and 4-wire RS-485 networks and can be easily secured to the serial port with thumbscrews to prevent accidental disconnection.
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.