Owner`s manual

66 MultiMobile
Chapter 6—Appendix
Appendix A: Pin Assignments
The Multifunction ISDN/Modem PC Card comes with U-interface or S/T-
interface network connection cable and analog fax/modem DAA. The U-
interface connection cable is for direct ISDN line connection, which does
not need any extra ISDN NT1 device. The S/T-interface connection cable
is for connecting to NT1. The U- and ST-interface both use an RJ-45
phone jack but have different pin assignments. The bundled RJ-45 phone
cord can be used for both U- or S/T-interface connections. The fax/modem
DAA uses an RJ-11 phone jack to connect to PSTN (analog telephone
line) directly.
The RJ-45 Pin-outs of U-interface
Pin 1 Not connected
Pin 2 Not connected
Pin 3 Not connected
Pin 4 Signal
Pin 5 Signal
Pin 6 Not connected
Pin 7 Not connected
Pin 8 Not connected
The RJ-45 Pin-outs of S/T-interface
Pin 1 Not connected
Pin 2 Not connected
Pin 3 Transmit signal (T1)
Pin 4 Receive signal (R1)
Pin 5 Receive signal (R2)
Pin 6 Transmit signal (T2)
Pin 7 Not connected
Pin 8 Not connected
The RJ-11 Pin-outs of Analog Fax/Modem DAA
Pin 1 Not connected
Pin 2 Not connected
Pin 3 Tip
Pin 4 Ring
Pin 5 Not connected
Pin 6 Not connected