received Mac serial device list

Ian B sent me another image, upon request. I had asked for a screen snap of the serial port menu. Holy Universe!

This shows the various active communication devices (and assumes the USB-serial adapter is connected). Bluetooth, wireless channels, etc. No modem in this case.

And this shot, like the previous, is the first time I've seen the communication menu Stellarium on a Mac. 

So amazing!

The "cu" item must be selected and not the "tty."

With this incredible snapshot, I can speak with confidence and complete my documentation.

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The "cu" refers to Call Up for "outbound" communications from Stellarium. The "tty" might be used in a server scenario where one is waiting for an incoming call to be answered.