After the cable is placed in the trench and covered with earth, it is connected to equipment at the base of the terminal station and then to communications systems in the ITA. Divers then cut off the floating balls to allow the cable to sink to the sea bed, and land operations are finished.
淺海的登陸作業完成後，海纜船再度駛向大海中，開始「深海布放」：由海纜船的巨型電纜艙中，依船行速度，緩緩放出電纜，電纜悄然由船尾沉落海底。