Cummins INLINE 7 data Link adapter Cummins Truck diagnostic tool with Cummins Insite 8.7 software CF53 Laptop. INLINE 7 supports USB, WiFi and Bluetooth technologies in a single device. TheCummins INLINE 7 DataLink Adapter is designed to function with a wide array of Cummins, OEM and third-party service and information tools, including the following.