iCS AT-104 Single Board 385sx ISA computer, Need help and Info !

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I have an ICS single board ISA single board computer marked AT-104.
It was originally used in a Xycom 8450HU HMI workstation/operator interface.

I am converting to a half size 386sx board but can't fiqure out the P1 plug pinouts for the keyboard,etc.
If anyome has any info, much,much appreciated !!