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Type N connector (female) The N connector (in full, Type N connector) is a threaded, weatherproof, medium-size RF connector used to join coaxial cables. It was one of the first connectors capable of carrying microwave-frequency signals, and was invented in the 1940s by Paul Neill of Bell Labs, after whom the connector is named. 1 Design.
Small cylindrical connectors come in a variety of sizes. They may be known as coaxial power connectors, barrel connectors, concentric barrel connectors or tip connectors. The intended use of these plugs is on the cable connected to a power supply.