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E1 and T1 RJ-48 Cable Pinouts
The E1 and T1 PIMs use an RJ-48 cable, which is not supplied with the
PIM.
 |
To maintain agency approvals, use only a properly constructed, shielded
cable.
|
Table 70, Table 71, Table 72, and Table 73 describe
the RJ-48 connector pinouts.
Table 70: RJ-48
Connector to RJ-48 Connector (Straight) Pinout
|
RJ-48 Pin (on T1/E1 PIM) (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 71: RJ-48
Connector to RJ-48 Connector (Crossover) Pinout
|
RJ-48 Pin (on T1/E1 PIM)
(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 72: RJ-48
Connector to DB-15 Connector (Straight) Pinout
|
RJ-48 Pin (on T1/E1 PIM)
(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 73: RJ-48
Connector to DB-15 Connector (Crossover) Pinout
|
RJ-48 Pin (on T1/E1 PIM)
(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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