Before any cable is laid, you need to define the scope and architecture of your fiber optic cabling project: Environment: Indoor, outdoor, aerial, or underground? Distance & topology: Determines whether to use single-mode or multimode fiber. Bandwidth needs: Plan for. Due to different construction conditions and construction requirements, fiber optical cables will be laid in different methods and scenarios. Most regular laying methods includes: direct burial, overhead (aerial installation), pipeline (underground), underwater and Indoor, etc. Cables should be pulled with swivel pulling eyes to prevent causing a twist in the cable.