WiModem232 on Apple //e with SSC no longer displays any output

[Kailef]

A friend of mine sent me a known-good super serial card and a known-good WiModem232 Rev 2. I get the same results on my Apple //e. By the way, I've done all my testing using a raw Terminal program (ZLink) rather than Proterm. (But it does the same thing in Proterm)

I swapped out the only thing I hadn't changed yet, using another serial cable, and it still didn't change the symptoms either.

So then I tested this new, known-good WiModem232 on my Apple IIc, and it's working fine there. So for grins I connect my old WiModem232 to the Apple IIc, and lo and behold, it's working fine as well. Pardon me while I take a moment to whack my forehead against my desk a few times.

Clearly, I've overlooked something, so I must assume that all of my testing up until this point is faulty. Time to start over from scratch with no assumptions. I have absolutely no idea what's going on!