Smartlink Multimedia Conference Server Installation Manual - J1/isdn
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Appendix C. Cables
C–16
J1/ISDN
The J1/ISDN cable supports a connection between the
T1/ISDN module and NTT switched networks. The
J1/ISDN cable provides an RJ-45 modular plug on each
end.
When connecting to a screw terminal block, remove the
RJ-45 connector from the network side of the J1/ISDN
cable. Trim the insulation and mark the conductors as
specified in Table C–10.
Table C–10. J1/ISDN Cable Pin Assignments
MCS (T1/ISDN Module)
Network (J1/ISDN Cable)
Pin
Function
Pin
Screw Terminal
Function
1
Receive ring
4
f
Transmit ring
2
Receive tip
5
e
Transmit tip
4
Transmit ring
3
c
Receive ring
5
Transmit tip
6
d
Receive tip
The remaining pins are not used.