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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.

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

Table 21, Table 22, Table 23, and Table 24 describe the RJ-48 connector pinouts.

Table 21: RJ-48 Connector to RJ-48 Connector (Straight) Pinout

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

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 22: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout

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

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 23: RJ-48 Connector to DB-15 Connector (Straight) Pinout

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 24: RJ-48 Connector to DB-15 Connector (Crossover) Pinout

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


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