- AES50 Port 1 is channels 1 - 24 bidirectionally,
- AES50 Port 2 is channels 25 - 48 bidirectionally and
- AES50 Port 3 is channels 49 - 72 bidirectionally.
Therefore, at 48KHz, even though it should be possible to run 48 channels bidirectionally on each AES50 port, this is not actually possible. If you need 48 channels of audio, then you will need to use two AES50 ports on the console and DN9650. You will assign the first 24 channels to AES50 port 1 and the 25 - 48 channels to AES50 port 2. On an M32, this does mean that you have to use both AES50 ports, leaving only the local IO available for inputs and outputs.