Not in the manual and I had one that needed some cleanup underneath, so wanted to document this for others for future help:
Power:
Pin 1 - 12v
Pin 2 - KEY
Pin 3 - Ground
Pin 4 - NU
Drop Target Optos Connector:
Pin 1 - Brown/white
Pin 2 - KEY
Pin 3 - Red/white
Pin 4 - Orange/white
Pin 5 - Yellow/white
Pin 6 - Green/white
Pin 7 - Green/orange