Appendix A
63
Note:
The IC-4FXS is actually equipped with RJ-11 sockets. An RJ-11 socket is similar to an RJ-12
socket but pins 1 and 6 are omitted.
Pins not listed are not used.
PRI Port
Pin
USR
1 TX
Tip
2 TX
Ring
3 TX
Shield
4 RX
Tip
5 RX
Ring
6 RX
Shield
Table 7: RJ-45 Socket
Note:
Pins not listed are not used.
Serial Port
The serial port is configurable to work in either V.35 or in X.21 mode. A standard D-subminiature
female socket with 25 positions is used.
Pin
Signal V.35
1 Frame
Ground
4 DCD
6 DTR
7 Signal
Ground
8 RTS
9 RXDa
10 RXDb
11 TXDb
12 TXDa
16 TXCb
21 RXCb
22 RXCa
23 TXCa
25 CTS
Table 8: Serial Port V.35 Signals
Note:
Pins not listed are not used.
Hardware Installation Guide, Revision 3.11