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E1 and T1 RJ-48 Cable Pinouts

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.


The following tables describe the RJ-48 connector pinouts:


Table 26: 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 27: 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 28: 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 29: 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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