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  2. 25-pair color code - Wikipedia

    en.wikipedia.org/wiki/25-pair_color_code

    A common application of the 25-pair color code is the cabling for the Registered Jack interface RJ21, which uses a female 50-pin miniature ribbon connector, as shown in the following table. The geometry of the pins of the receptacle (right hand image) corresponds to the pin numbers of the table.

  3. 1A2 Key Telephone System - Wikipedia

    en.wikipedia.org/wiki/1A2_Key_Telephone_System

    A telephone set (keyset) could operate as many lines as it had pickup keys (buttons) installed. Most keysets with up to nine lines are connected to the system using a single 25-pair cable terminated with an Amphenol 50-position "MicroRibbon" connector. Sets with up to 19 line positions used a 50-pair cable and the large instruments with 29 line ...

  4. Color code - Wikipedia

    en.wikipedia.org/wiki/Color_code

    25-pair color code chart used in certain kinds of wiring. A color code is a system for encoding and representing non-color information with colors to facilitate communication. This information tends to be categorical (representing unordered/qualitative categories) though may also be sequential (representing an ordered/quantitative variable).

  5. ANSI/TIA-568 - Wikipedia

    en.wikipedia.org/wiki/ANSI/TIA-568

    ANSI/TIA-568 is a technical standard for commercial building cabling for telecommunications products and services. The title of the standard is Commercial Building Telecommunications Cabling Standard and is published by the Telecommunications Industry Association (TIA), a body accredited by the American National Standards Institute (ANSI).

  6. Twisted pair - Wikipedia

    en.wikipedia.org/wiki/Twisted_pair

    Unshielded twisted pair (UTP) cables are found in many Ethernet networks and telephone systems. For indoor telephone applications, UTP is often grouped into sets of 25 pairs according to a standard 25-pair color code originally developed by AT&T Corporation. A typical subset of these colours (white/blue, blue/white, white/orange, orange/white ...

  7. Telco cable - Wikipedia

    en.wikipedia.org/wiki/Telco_cable

    Telco cable. A telco cable, also known as a Telecom cable or Amphenol cable, is a thick cable used for connecting multiple voice or data lines for LANs or telecommunications. The ends use 25 pairs of polarized pins (50 pins total). [1] This cable handles up to 25 data channels or phone lines. [2] The name Amphenol comes from the company that ...

  8. Standard 52-card deck - Wikipedia

    en.wikipedia.org/wiki/Standard_52-card_deck

    A standard 52-card French-suited deck comprises 13 ranks in each of the four suits: clubs ( ♣ ), diamonds ( ♦ ), hearts ( ♥) and spades ( ♠ ). Each suit includes three court cards (face cards), King, Queen and Jack, with reversible (i.e. double headed) images. Each suit also includes ten numeral cards or pip cards, from one (Ace) to ten.

  9. File:25 pair color code chart.svg - Wikipedia

    en.wikipedia.org/wiki/File:25_pair_color_code...

    File:25 pair color code chart.svg. Size of this PNG preview of this SVG file: 300 × 600 pixels. Other resolutions: 120 × 240 pixels | 240 × 480 pixels | 384 × 768 pixels | 512 × 1,024 pixels | 1,024 × 2,048 pixels | 375 × 750 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.