Pin Function
1 Not used
2 Not used
3 Transmit (+)
4 Receive (+)
5 Receive (-)
6 Transmit (-)
7 Not used
8 Not used
The pin assignment for the ISDN BRI interface (RJ45 socket) in NT mode is as follows:
RJ45 socket for ISDN connection in NT mode
Pin Function
1 Not used
2 Not used
3 Receive (+)
4 Transmit (+)
5 Transmit (-)
6 Receive (-)
7 Not used
8 Not used
6.5.8 FXS interface
bintec RT4202 has four FXS interfaces.
The connection is made via an RJ45 socket.
Fig. 18: FXS interface (RJ45 connector)
The pin assignment for the FXS interface (RJ45 connector) is as follows:
RJ45 connector for FXS connection
6 Technical data Funkwerk Enterprise Communications GmbH
42 bintec Rxxx2/RTxxx2