This guide provides a comprehensive overview of industry standards, best practices, and a complete solution for direct-buried fiber optic cable installation. Why Burial Depth Matters? Physical Damage: From digging, agriculture, ground freezing, and surface activities. A submarine communications cable is a cable laid on the seabed between land-based stations to carry telecommunication signals across stretches of ocean and sea. To ensure the optimal. le may extend off the reel and beco ssible safety hazard and/or damaging the cable. Fiber optic cable is sensitive to xcessive pulling, bending. Installing a robust and reliable fiber optic network requires carefully determining the optimal burial depth. Proper cable placement protects your infrastructure investment and ensures seamless connectivity for decades to come.