I'm trying to construct a motherboard for my KIM-1. Various sources show different signals for various pins on the connector. Some motherboards have both the Expansion and Application bus, while some have only the Expansion. The KIM-4 schematics seem to disagree with other "KIM-4" definitions, and not all of the signals are defined.

Does someone have a good reference for the signals? I'm hoping to be compatible with any third-party boards I happen to stumble across.

Bob