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RJ-11 / RJ45 / RJ31X / RJ-14 / RJ-25

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Types of connectors used to terminate communication cables, such as telephone or Ethernet cables. RJ-11 is a connector used for telephone cables, while RJ-45 is a connector used for Ethernet cables. RJ-31X is a connector used for security systems, while RJ-14 is a connector used for two-line telephone systems. RJ-25 is a connector used for three-line telephone systems.

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