The RM2200D includes a talkback matrix, which you can configure in this dialog . It works like this:

Figure 27: Configuration dialog for the talkback matrix.

In the top row of the dialog there are three audio sources: Talk1 audio source, Talk2 audio source and External talkback source. Using the buttons …, you can open the Audio Sources window and select any available audio signal as input.

	Tip
	Use the audio source External talkback source when connecting the RM2200D to an external intercom system. As you can see in the figure, this audio source can only talk back into monitor busses.

Below the first row there are logic conditions. They work like a crossbar: If the condition on a switching point becomes true, the audio signal from the first row is routed to the Talkback destination to the right. You just have to select the appropriate logic source for the desired talkback path.

For the destinations Monitor 1 and Monitor 2 you can choose to route the talkback signal only to the assigned headphones. Just activate the checkboxes Headphones only to use this function.