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The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]
The UEXT connector consists of 10 pins, in a two row by five male pin configuration, with a plastic keyed-shrouded or box header (specifically BH10S). All pins have a spacing of 0.1 inch (2.54 mm). [1] [2] The socket is mated with a 2×5 (10-pin) IDC female connector, and typically connected to a ribbon cable.
Connectors on this cable would be designated: 1A1W35P1; 1A1W35P2; ASME Y14.44-2008 continues the convention of Plug P and Jack J when assigning references for electrical connectors in assemblies where a J (or jack) is the more fixed and P (or plug) is the less fixed of a connector pair, without regard to the gender of the connector contacts.
Ethernet cable with an M12 X-coded connector in one end and a modular connector in the other. IEC metric screw sized connectors is a family of electrical connectors defined by IEC that are named according to their ISO metric screw thread , namely M5 , M8 and M12 . [ 1 ]
Modular connector 6P6C plug (left) and 6P4C jack (right) A telephone jack and a telephone plug are electrical connectors for connecting a telephone set or other telecommunications apparatus to the telephone wiring inside a building, establishing a connection to a telephone network.
Perhaps the most comprehensive known and most discussed feature of ANSI/TIA-568 is the definition of the pin-to-pair assignments, or pinout, between the pins in a connector (a plug or a socket) and the wires in a cable. Pinouts are critical because cables do not function if the pinouts at their two ends aren't correctly matched.
For example, RJ11 and RJ14 use female six-position modular connectors, and RJ21 uses a 25-pair (50-pin) miniature ribbon connector. RJ11 uses two conductors in a six-position female modular connector, so can be made with any female six-position modular connector, while RJ14 uses four, so can be made with either a 6P4C or a 6P6C connector.
JST manufactures numerous series (families) and pitches (pin-to-pin distance) of connectors. [ 2 ] [ 3 ] JST connectors are used in many types of products, and commonly used by electronics hobbyists and consumer products for rechargeable battery packs, battery balancers , battery eliminator circuits , 3D printers , and radio controlled servos .