modular jack

Definitions

Electronics

  • A connector with a recessed opening for making contact with multiple conductors, usually for 4, 6, or 8 wires. Such a jack, when used with its matching plug, makes for easy connection and disconnection to and from a communications network. The RJ-11 jack, for instance, is a standard telephone interface found in the walls of homes, and is used to plug in a telephone or modem cord. Also called modular connector (1).
  • synonymmodular connector
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