Juniper Networks J-series Services Router J2320 User Manual
Page 258
Table 87 on page 236 through Table 90 on page 237 describe the RJ-48 connector
pinouts.
Table 87: RJ-48 Connector to RJ-48 Connector (Straight) Pinout
Signal
RJ-48 Pin
(Data Numbering
Form)
RJ-48 Pin (on T1/E1 PIM)
(Data Numbering Form)
RX, Ring, –
1
1
RX, Tip, +
2
2
TX, Ring, –
4
4
TX, Tip, +
5
5
Shield/Return/Ground
3
3
Shield/Return/Ground
6
6
No connect
No connect
7
No connect
No connect
8
Table 88: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout
Signal
RJ-48 Pin
(Data Numbering
Form)
RJ-48 Pin (on T1/E1 PIM)
(Data Numbering Form)
RX/Ring/– <––>TX/Ring/–
4
1
RX/Tip/+ <––>TX/Tip/+
5
2
TX/Ring/– <––>RX/Ring/–
1
4
TX/Tip/+ <––>RX/Tip/+
2
5
Shield/Return/Ground
3
3
Shield/Return/Ground
6
6
No connect
No connect
7
No connect
No connect
8
236
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E1 and T1 RJ-48 Cable Pinouts
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide