Fourth-wire cable - SubConn OM10M Communication Hub connector
This 10-pin male connector on the fourth-wire cable plugs into the Communication Hub.
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Inline cable colour code
•  Pin 1: Black
•  Pin 2: White
•  Pin 3: Red
•  Pin 4: Green
•  Pin 5: Orange
•  Pin 6: Blue
•  Pin 7: White/black
•  Pin 8: Red/black
•  Pin 9: Green/black
•  Pin 10: Orange/black