Modular connector
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A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets.
Left to right, modular connectors: 8P8C plug, 6P6C plug, 6P4C plug, 4P4C plug, 6P6C jack.
8P8C plug with contacts for solid wire (left) and stranded wire (right)
Contacts for solid wire (top left) and stranded wire (bottom right)
A modular plug crimping tool with exchangeable crimping dies
Telephone jack and plug
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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 connectio
Modular connector
…from its original use in modular wiring components of telephone equipment by the Western Electric Company in the 1960s. This includes the 6P2C used for telephone line connections and 4P4C used for handset connectors. Registered jack designations describe the signals and wiring used for voice and data communication at customer-facing…
Modular connector 6P6C plug (left) and 6P4C jack (right)
Bell System Type 404A jack and type 283B plug (c. 1960)
Trimline telephone line cord with a Type 505A wall plug and modular set plug (mid-1960s)
Type 505A wall jack (1968)