If you are using Cubepilot Flight controller, you can select the DroneCAN version or UART 6 Pin version.The CAN version will be connected to the CAN1 or CAN2 port and the UART 6pin can be connected to GPS2 port.

UART 6 Pin version

If using the UART 6 pin version with Cubepilot flight controller and Ardupilot, set Serial3_Protocol to -1 so that Ardupilot will read GPS2 port for GPS data if there is nothing connected on the GPS1 port.

Note: This GPS does not have a external safety switch, you should disable the safety switch function on ground control station application.