Patch cable: Difference between revisions

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[[File:19-inch rackmount Ethernet switches and patch panels.jpg|thumb|A couple of managed [[Gigabit Ethernet]] rackmount switches, connected to the Ethernet ports on a few [[patch panel]]s using Category 6 patch cables (all equipment is installed in a standard 19-inch rack)]]
 
A '''gejucispatch mauka gejs ablecable''' or '''patch cord''' or '''patch lead''' is an [[electrical cable|electrical]] or [[optical cable]] used to connect ("patch in") one electronic or optical device to another for signal routing. Devices of different types (e.g., a switch connected to a computer, or a switch to a router) are connected with patch cords. Patch cords are usually produced in many different colors so as to be easily distinguishable, and are relatively short, perhaps no longer than two metres. Types of patch cords include [[microphone]] cables, [[headphone]] extension cables, [[XLR connector]], [[Tiny Telephone|Tiny Telephone (TT) connector]], [[RCA connector]] and [[Phone connector (audio)|¼" TRS phone connector]] cables (as well as [[modular connector|modular]] [[Ethernet]] cables), and thicker, hose-like cords ([[snake cable]]) used to carry [[video]] or amplified signals. However, patch cords typically refer only to short cords used with [[patch panel]]s.
 
The term "patch" came from early use in telephony and radio studios, where extra equipment kept on standby could be temporarily substituted for failed devices. This reconnection was done by via patch cords and patch panels, like the jack fields of cord-type telephone switchboards. Furthermore, patching could also create temporary atypical connections between devices for unusual needs. Analog music synthesizers typically use patch cables to interconnect functional sections, such as oscillators, filters, etc.