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HOME > PRODUCTS > WIRING REFERENCE :: Modular jack and plug wiring, 103 block wiring

INDEX Jacks 8 position 8 conductor --> 568B | USOC
6 position 6, 4, or 2 conductor --> 6c USOC | 4c USOC | 2c USOC
Plugs 8 position 8 conductor --> 568B | USOC
6 position 6 conductor --> USOC
103 blocks 4 pair --> 568B | USOC
3 pair --> USOC
general 25 pair color code


Jacks


  • 8 position 8 conductor (4 pair) designations, 258A and 568B

    JACK DESIGNATIONS
    AT&T 258A
    EIA 568B
    DESIGNATION JACK
    PIN #
    NUMBER ON
    103 BLOCK

    WITH 8-POS JACK
    STANDARD
    WIRING
    COLOR CODE
    PAIR
    8p8c T 1 3 white/orange 2
    R 2 4 orange/white 2
    T 3 5 white/green 3
    R 4 2 blue/white 1
    T 5 1 white/blue 1
    R 6 6 green/white 3
    T or -48v battery 7 7 white/brown 4
    R or -48v ground 8 8 brown/white 4

  • 8 position 8 conductor (4 pair) designations, USOC

    JACK DESIGNATIONS
    USOC
    DESIGNATION JACK
    PIN #
    NUMBER ON
    103 BLOCK

    WITH 8-POS JACK
    STANDARD
    WIRING
    COLOR CODE
    PAIR
    8p8c usoc T 1 1 white/brown 4
    T 2 2 white/green 3
    T 3 3 white/orange 2
    R 4 4 blue/white 1
    T 5 5 white/blue 1
    R 6 6 orange/white 2
    R 7 7 green/white 3
    R 8 8 brown/white 4

  • 6 position 6 conductor (3 pair) designations, USOC

    JACK DESIGNATIONS
    USOC RJ25C
    DESIGNATION JACK
    PIN #
    STANDARD
    WIRING
    COLOR CODE
    PAIR
    6p6c T 1 white/green 3
    T 2 white/orange 2
    R 3 blue/white 1
    T 4 white/blue 1
    R 5 orange/white 2
    R 6 green/white 3

  • 6 position 4 conductor (2 pair) designations, USOC

    JACK DESIGNATIONS
    USOC RJ14C
    DESIGNATION JACK
    PIN #
    STANDARD
    WIRING
    COLOR CODE
    PAIR
    6p4c T 1 white/orange 2
    R 2 blue/white 1
    T 3 white/blue 1
    R 4 orange/white 2

  • 6 position 2 conductor (1 pair) designations, USOC

    JACK DESIGNATIONS
    USOC RJ11C
    DESIGNATION JACK
    PIN #
    STANDARD
    WIRING
    COLOR CODE
    PAIR
    6p2c R 1 blue/white 1
    T 2 white/blue 1

    Plugs Go to the top of this page.


  • 8 position 8 conductor (4 pair) designations, 258A and 568B

    PLUG DESIGNATIONS
    AT&T 258A
    EIA 568B
    568B modular plug wiring

  • 8 position 8 conductor (4 pair) designations, USOC

    PLUG DESIGNATIONS
    USOC
    USOC modular plug wiring

  • 6 position 6 conductor (3 pair) designations, USOC

    PLUG DESIGNATIONS
    USOC
    USOC modular plug wiring

    Connecting blocks Go to the top of this page.


  • 8 conductor (4 pair) 103 block wiring, 258A and 568B

    8 PIN 103 BLOCK WIRING
    STANDARD: AT&T 258A / EIA 568B
    PLUG: 8 POSITION 8 CONDUCTOR
    JACK TYPE: 103 STYLE, SCREW or IDC
    8 position 8 conductor

  • 8 conductor (4 pair) 103 block wiring, USOC

    8 PIN 103 BLOCK WIRING
    STANDARD: USOC
    PLUG: 8 POSITION 8 CONDUCTOR
    JACK TYPE: 103 STYLE, SCREW or IDC
    usoc

  • 6 conductor (3 pair) 103 block wiring, USOC

    6 PIN 103 BLOCK WIRING
    STANDARD: USOC
    PLUG: 6 POSITION 6 CONDUCTOR
    JACK TYPE: 103 STYLE, SCREW or IDC
    usoc 6p6c

    25 pair color code Go to the top of this page.


    25 PAIR COLOR CODE
    25 pair color code

    Go to the top of this page.

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