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  2. Telephone line - Wikipedia

    en.wikipedia.org/wiki/Telephone_line

    Often, the customer end of that wire pair is connected to a data access arrangement, and the telephone company end of that wire pair is connected to a telephone hybrid. In most cases, two copper wires (tip and ring) for each telephone line run from a home or other small building to a local telephone exchange.

  3. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    telephone line to phone cord: The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the telephone network. In many residences, though, the boundary between utility-owned and household-owned cabling is a network interface on an outside wall known as the demarcation ...

  4. Punch-down block - Wikipedia

    en.wikipedia.org/wiki/Punch-down_block

    Punch-down blocks are a very quick and easy way to connect wiring, as there is no stripping of insulation and no screws to loosen and tighten. Punch-down blocks are often used as patch panels, or as breakout boxes for PBX or other similar multi-line telephone systems with 50-pin RJ21 connectors. [2]

  5. Tip and ring - Wikipedia

    en.wikipedia.org/wiki/Tip_and_ring

    In the era of the telephone industry when rotary dial instruments were in use, the polarity when connecting a telephone set to the tip and ring wires was usually important only for properly ringing a telephone, especially in party line service with selective ringing, and for correctly identifying the calling customer on certain party lines for ...

  6. Landline - Wikipedia

    en.wikipedia.org/wiki/Landline

    Landline service is typically provided through the outside plant of a telephone company's central office, or wire center. The outside plant comprises tiers of cabling between distribution points in the exchange area, so that a single pair of copper wire, or an optical fiber, reaches each subscriber location, such as a home or office, at the network interface.

  7. Utility pole - Wikipedia

    en.wikipedia.org/wiki/Utility_pole

    A pole route (or pole line in the US) is a telephone link or electrical power line between two or more locations by way of multiple uninsulated wires suspended between wooden utility poles. This method of link is common especially in rural areas where burying the cables would be expensive.

  8. Wired communication - Wikipedia

    en.wikipedia.org/wiki/Wired_communication

    Wired communication refers to the transmission of data over a wire-based communication technology (telecommunication cables). Wired communication is also known as wireline communication. Examples include telephone networks, cable television or internet access, and fiber-optic communication. Most wired networks use Ethernet cables to transfer ...

  9. 25-pair color code - Wikipedia

    en.wikipedia.org/wiki/25-pair_color_code

    When used for plain old telephone service (POTS), the first wire is known as the tip or A-leg (U.K.) conductor, and is usually connected to the positive side of a direct current (DC) circuit, while the second wire is known as the ring lead or B-leg (U.K.), and is connected to the negative side of the circuit. Neither of these two sides of the ...

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