Configuration of the Line Termination
On the right next to the plug bridge fields for each connection you will find a two-pole DIP switch with which the line termination can be configured.
If both pins of the switch are in the "OFF" position, no termination is switched on.
If the left pin is on the "OFF" position and the right pin is on the "ON" position, this means that this has a 120 ohm line termination.
If the left pin is on the "ON" position and the right pin is on the "OFF" position, this means that this has a 75 ohm line termination.