Their primary function is to provide a protected and accessible pathway for these vital lines, ensuring their integrity, facilitating maintenance, and contributing to the overall efficiency and reliability of the systems they support. The design and implementation of pole-mounted trays are driven. For monitoring and managing networks, they use a variety of means of communications, including running fiber optic cables along the transmission and distribution towers, radio links and contracting landline and cellular communications services from telecom carriers. Most of the cable tray systems are open, allowing efficient heat dissipation and easy access for replacement and repairs. Although typically suspended. That's where grid cable trays and fiber optic raceways come in. They are key parts of keeping modern communication systems tidy and working well. NEC section 300-8 does not permit any tube, pipe, or equal for water, air gas, drainage, steam, or any service other than electrical in raceways or cable trays containing. The Fiber Optic Trays are used to place and protect optic fibers and their splices, so that they do not get damaged or bent, which would result in attenuation on the optical path.