four-wire line

four-wire line

[′fȯr ‚wīr ′līn]
(electromagnetism)
A transmission line in which four conductors lie at the corners of a rectangle, and each conductor is in phase with the conductor at the opposite corner and out of phase with the conductors at adjacent corners.
References in periodicals archive ?
And with a single four-wire line from Missouri to California costing between $1200 and $1400 a month, the savings are real," he reports.
It specialises in the production of semi-automatic systems for processing coaxial cables and four-wire lines and operates in Germany, Mexico, Romania and the US.
Attachments to the communications link is via screw terminals for either one set or two sets of four-wire lines.