T1/ISDN
C–25
Table C–15 lists the pin assignments for a T1/ISDN cable.
Figure C–5 shows the RJ-45 pin-numbering scheme.
Figure C–5. RJ-45 Pin-Numbering Scheme
Table C–15. T1/ISDN Cable Pin Assignments
Pin
Description
1 Receive
ring
2
Receive tip
4
Transmit ring
5
Transmit tip
The remaining pins are not used.
1 2 3 4 5 6 7 8