Technical Documentation
Related Documentation
M320 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) Pinouts
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 2: RJ-48 Connector to RJ-48 Connector (Crossover) Pinouts
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 3: RJ-48 Connector to DB-15 Connector (Straight) Pinouts
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) Pinouts
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 |
