The start / reset / NMI functions on the G3 B&W are handled by a small
circuit board, about two inches square, that is inside a small metal
bracket that snaps into the front of the chassis. This small and (one
would think) simple task reqires three cable connection. (Power, 3-pin
round cable to connector J2 on the mobo, and a 20-pin ribbon cable to
J23 on the mobo.)

Does anybody know why this complexity is needed? Or to but it another
way, does anyone have a document specifying what all those lines -DO-?
The Wintel world seems to get by with a lot fewer front panel signals.

The REAL bottom line is that I'm doing yet another casemod based on
the Yosemite mobo, and I want to understand these signals so that I
can implement them in ways OTHER than the little front panel card.

Thanks in advance for any insight.

- Marty

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