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    RJ-48 Cable Pinouts for E1 and T1 PICs

    The E1 and T1 PICs use an RJ-48 cable, which is not supplied with the PIC.

    Caution: To maintain agency approvals, use only a properly constructed, shielded cable.

    Table 1, Table 2, Table 3, and Table 4 describe the RJ-48 connector pinouts.

    Table 1: RJ-48 Connector to RJ-48 Connector (Straight) Pinout for the Router

    RJ-48 Pin (on T1/E1 PIC) (Data numbering form)

    RJ-48 Pin

    (Data numbering form)

    Signal

    1

    1

    RX, Ring, –

    2

    2

    RX, Tip, +

    4

    4

    TX, Ring, –

    5

    5

    TX, Tip, +

    3

    3

    Shield/Return/Ground

    6

    6

    Shield/Return/Ground

    7

    No connect

    No connect

    8

    No connect

    No connect

    Table 2: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout for the Router

    RJ-48 Pin (on T1/E1 PIC)

    (Data numbering form)

    RJ-48 Pin

    (Data numbering form)

    Signal

    1

    4

    RX/Ring/– <––>TX/Ring/–

    2

    5

    RX/Tip/+ <––>TX/Tip/+

    4

    1

    TX/Ring/– <––>RX/Ring/–

    5

    2

    TX/Tip/+ <––>RX/Tip/+

    3

    3

    Shield/Return/Ground

    6

    6

    Shield/Return/Ground

    7

    No connect

    No connect

    8

    No connect

    No connect

    Table 3: RJ-48 Connector to DB-15 Connector (Straight) Pinout for the Router

    RJ-48 Pin (on T1/E1 PIC)

    (Data numbering form)

    DB-15 Pin

    (Data numbering form)

    Signal

    1

    11

    RX/Ring/– <––>RX/Ring/–

    2

    3

    RX/Tip/+ <––>RX/Tip/+

    4

    9

    TX/Ring/– <––>TX/Ring/–

    5

    1

    TX/Tip/+ <––>TX/Tip/+

    3

    4

    Shield/Return/Ground

    6

    2

    Shield/Return/Ground

    7

    No connect

    No connect

    8

    No connect

    No connect

    9

    No connect

    No connect

    10

    No connect

    No connect

    11

    No connect

    No connect

    12

    No connect

    No connect

    13

    No connect

    No connect

    14

    No connect

    No connect

    15

    No connect

    No connect

    Table 4: RJ-48 Connector to DB-15 Connector (Crossover) Pinout for the Router

    RJ-48 Pin (on T1/E1 PIC)

    (Data numbering form)

    DB-15 Pin

    (Data numbering form)

    Signal

    1

    9

    RX/Ring/– <––>TX/Ring/–

    2

    1

    RX/Tip/+ <––>TX/Tip/+

    4

    11

    TX/Ring/– <––>RX/Ring/–

    5

    3

    TX/Tip/+ <––>RX/Tip/+

    3

    4

    Shield/Return/Ground

    6

    2

    Shield/Return/Ground

    7

    No connect

    No connect

    8

    No connect

    No connect

    9

    No connect

    No connect

    10

    No connect

    No connect

    11

    No connect

    No connect

    12

    No connect

    No connect

    13

    No connect

    No connect

    14

    No connect

    No connect

    15

    No connect

    No connect


    Published: 2010-10-28