One or more HDPE, PVC or concrete ducts are installed underground, with handholes or manholes at regular intervals. Fiber cables are then pulled or blown through the ducts. A practical, engineering-focused guide to planning and installing underground fiber optic cables with the right cable structure, trench design and protection level for long-life, low-risk networks. Match trench method with the correct underground fiber structure (GYTS, GYTA53, GYTY53, micro-duct). Ducts (or conduits) offer a highly protective environment for fiber-optic cables. Already Know What You Are Looking For? Already have your cable in mind? Visit all our outdoor cables here. It forms a critical backbone for modern communication networks across both urban and rural environments. As a global exporter, ZTO.
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