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FXO Port Pin Assignments
The FXO Telephony Interface has 2 RJ-11C/W modular jacks. The following diagram and
table show the assignments of the pin for the R-J11 port.
81
RJ-11pin Signal
1
2 Tip
3 Ring
4
1234
FXS Port Pin Assignments
The FXS Telephony Interface has 4 RJ-11C/W modular jacks. The following diagram and
table show the assignments of the pin for the RJ-11 port.
RJ-11 pin Signal
1 Not connected
2 Tip
3 Ring
4 Not connected
1234