I have a A3, LightBridge 2, and Zenmuse Z3 (Matrice 600 mount) on a S1000+. Can the Zenmuse Z3 be connected through the CAN2 port on the A3 thus avoiding using the CAN hub. Currently the GPS Compass module is connected via CAN1 and LB2 Via RF to the A3, gimbal is connected to gimabl port on LB2 but as the documentation for this combination of DJI products seems to be non-existent. Do I need to use the CAN hub and connect everything through CAN1? Any insight to this would be greatly appreciated. As I am a very visual person pictures would be great too. Thanks is advance.

You need no hub. Connect the CAN cable from the M600 board to the CAN connector located in the GPS/compass cable, see picture.
Best regards,
Wilhelm

Thank you very much Wilhelm.