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"
• Table 27, "RJ-48 Connector to RJ-48 Connector (Crossover) Pinout"
• Table 28, "RJ-48 Connector to DB-15 Connector (Straight) Pinout"
• Table 29, "RJ-48 Connector to DB-15 Connector (Crossover) Pinout"

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