Configuring the ISDN connections

The ISDN connections on the hybird 120 can be operated as S0 NT, S0 TE . There are two slots with a mini PCB beneath the removable faceplate and beneath the flap underneath it, for switching between the separate operating modes:

You can set the operating mode by plugging in the mini module belonging to each connection (ISDN 1 above, ISDN 2 below) in such a way that, when viewed from above, you can see the label you want (for guidance: the connections on the device are located on the bottom). Also, adjacent to the slots for switching over the operating mode you will find two switch blocks for switching the terminators on and off. In its ex works state, the terminators for both ISDN connections are active.

If the mini PCB is inserted the wrong way, you will not see the ISDN port in the web-interface.