
1) Communication circuit
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https://www.crosswordclues.com/clue/twisted-pair

Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources; for instance, electromagnetic radiation from unshielded twisted pair (UTP) cables, and crosstalk between neighboring pairs. It was invented by Alexande...
Found on
http://en.wikipedia.org/wiki/Twisted_pair

Early wired electrical transmission system, now superseded by coaxial and fibre-optic technology, formerly employed by cable television systems with low channel carriage capacity for purposes of extending reception of off-air terrestrial signals for a limited number of TV channels.
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http://www.agbnielsen.net/glossary/glossaryQ.asp?type=alpha&jump=none

A transmission line in which two insulated conductors are twisted together.
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http://www.encyclo.co.uk/local/20510

Two insulated conductors twisted at a fixed rate of twists per unit of length, typically used in balanced circuits where nominal impedance and crosstalk are critical characteristics.
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http://www.encyclo.co.uk/local/20957

See 'Balanced Cables'.
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http://www.encyclo.co.uk/visitor-contributions.php

Telephone companies commonly run twisted pairs of cooper wires to each customer household. The pairs consist of two insulated cooper wires twisted into a spiral pattern. These wires are capable of transferring both voice as well as data..
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http://www.youngco.com/young2.asp?ID=4&Type=3

A cable composed of two small insulated conductors twisted together. Since both wires have nearly equal exposure to any interference, common mode noise is high, but the differential noise is slight thus common mode noise is rejected in a twisted pair line. Twisted pair cable is used for balanced line transmission.
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http://www.zoo.co.uk/~z0001325/Glossary.html

(NETWORK GLOSSARY) Relatively low speed transmission medium consisting of two insulated wires arranged in a regular spiral pattern. The wires may be shielded or unshielded.
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https://www.encyclo.co.uk/local/20479

Cable that consists of individual wires wrapped around each other for carrying telephone or computer data. Reduces pickup noise levels in signals. See also: Noise.
Found on
https://www.encyclo.co.uk/local/20687

Two insulated wires, usually made from copper, that are twisted in a regular, six turns per inch spiral pattern used to connect most telephones. Also used as a medium by several local area networks.
Found on
https://www.encyclo.co.uk/local/20850
No exact match found.