You'll probably need to ring Cat. Any internal schematic of the control circuit is likely to be proprietary, so don't count on getting a circuit drawing. If you look closely at the module you'll see it is potted in resin. That is partly to help minimise vibration problems, but primarily to prevent you repairing it instead of buying a new one. What information are you looking for?
not thinking on repair, only to connect it, cause I read in the document that is other manual with additional connections.
thank and sorry for big delay on reply
