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Twisted pair cabling is a type of communications cable in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility. Compared to a single conductor or an untwisted balanced pair , a twisted pair reduces electromagnetic radiation from the pair and crosstalk between neighboring pairs ...
The vast majority of audio multicore cables consist of a number of twisted-pair copper wires, suitable for balanced audio. [2]: 50 To reduce noise, the shield of each channel is often isolated from the other shields. Balanced connections may use XLR connectors or 1 ⁄ 4 inch (6.35 mm) TRS phone connectors (see § Terminations).
Often unmarked on consumer audio equipment since it is so common, or labelled with headphones symbol or as "line out". Computers and other equipment sometimes use Microsoft-Intel color coding scheme, especially when there are multiple input/output plugs. 3.5 mm TRS minijack RCA connector: Balanced audio: 6.35 mm TRS audio jack (shielded twisted ...
The twisted pair carries the signal in a balanced audio configuration. The audio multicore cable laid from the stage to the mixing console is also shielded. Consumers use screened copper wire with one central conductor in an unbalanced configuration.
Balanced connections typically use shielded twisted-pair cable and three-conductor connectors. The connectors are usually three-pin XLR or 1 ⁄ 4 inch (6.35 mm) TRS phone connectors. When used in this manner, each cable carries one channel, therefore stereo audio (for example) would require two of them.
Coaxial cables are often joined with power cables for CCTV use, meaning that only one cable has to be run to provide a both video and power connections. [10] Twisted pair cables such as Ethernet cables are sometimes combined with fiber-optic cables. A common configuration is a four-pair Category 5 cable with two strands of multimode fiber optic ...
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