Erm, OK. I totally missed that Windows has "con" as a special file handle. So when I looked at our screenshot, saw some output and then looked at my Linux console and saw nothing, it didn't occur to me that the output is actually in a file called "con". :)
So yes, RS232 output works and yes, on SCC for Falcon.. However if Falcon has (officially) only one serial port, why wasting the UI checkbox for nothing? It could easily redirect SCC output instead of MFP output.
Or, if you are strongly against it, please at least rename it to MFP output to make it less misleading.
And ideally, add an option to choose MFP/SCC ports in the UI. :)
Anyway, thanks for help Christian (I don't understand how you could get that shell, are you sure you have downloaded the bootable snapshot?)