PAPPP

I need a sanity check on a Mac <-> Modern serial connection problem.

I have what I think is a valid DB-9 (F) to Mini-Din-8 (M) Null Modem cable. I used to use it with an old Gumstix dev board, I beeped out and it looks credible for a Geocom port; MiniDin8-DB9: 2-7, 3-2, 4-5, 5-3, 6-8, but I don't have a reference I consider 100% reliable for the proper pin-out, so this is the most suspect part.

The Linux end is Picocom via a ch341 adapter with a built-in level shiftier and DB-9 (M) connector.

At the Mac end I've tried both my SE (6.0.8 from an HDD it's had for years until it capacitor-death-squealed and decided to stop talking to it yesterday; disc checks out on another Mac, ch