FRITZ!Box 6590 Cable Service - Knowledge Base
Pin assignment of adapters and ports for telephony devices
The FRITZ!Box comes with various adapters to connect telephony devices to the FRITZ!Box. Here you will find the pin assignment of the adapters included with delivery and of the FRITZ!Box ports so you can use your own cables, for example.
1 "FON S0" port on the FRITZ!Box
The cables of ISDN devices connected to the "FON S0" port on the FRITZ!Box must be assigned as follows:
Note:You can have a technician install an S0 interface connected to the "FON S0" port. The "FON S0" port is terminated (two 100 Ohm resistors are switched on the "FON S0" port in the FRITZ!Box).
Fig.: Pin assignment of the ISDN cable
2 RJ11 sockets of extensions "FON 1" and "FON 2"
The two middle pins 3 and 4 are assigned on the RJ11 sockets.
3 TAE socket of "FON 1" extension
The TAE socket is assigned in such a way that contacts 1 and 2 on TAE plugs must be assigned (see fig.).
Fig.: Contacts 1 and 2 on a TAE plug
4 Telephone adapter
The telephone adapter (TAE/RJ11) has the following pin assignment:
|RJ11 plug||TAE port|
|Table: Pin assignment of the TAE/RJ11 adapter|