A followup to my post - upon connecting my Mac to a remote INDI session to the Ubuntu host (which is connected to the PPBA), the Mac instance of INDI connects the (remote) PPBA just fine. I did a ~4 hour session last night, with auto-dew heaters enabled, and everything seems to work as expect.

One item I don't recall seeing is the ability to control each of the 4 individual 12V ports, but will look again when I get back to my scope.

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