Tom Greene wrote:
And, unless I'm misreading something, +5v is similarly MIA at the computer connector. Or, does that simply mean that the expansion chassis fails to make use of it?The connector on the computer does have +5V, but the expansion box provides its own +5V supply from an external source. It also derives -5V from the +12V line.
Ah. What threw me was the diagram for the expansion chassis shows nothing connected there. Thanks for the update!