Fiber optic cables bring natural daylight all the way into windowless spaces without skylights and other openings, using solar collectors. All-Dielectric, Self Supporting (ADSS) Aerial Loose Tube Fiber Optic Cable Dry core design PowerGuide® SkyLight All-Dielectric, Self Supporting (ADSS) Aerial Loose Tube Fiber Optic Cable Dry core design PowerGuide® SkyLight This table shows nominal diameter and weight values which may differ in. Fiber optics have enabled everything from light-transmitting concrete to see-through wood, but lately have found even more innovative applications for interior daylighting. Passing through a thin wooden wall or concrete block is one thing – but imagine natural light that could wind its way through. 12 Core GYXTW Fiber Optic Cable Aerial Duct Direct Burial is a type of fiber optic cable that is widely used in aerial application. As a matter of fact, GYXTW fiber optic cable plays. These are the outdoor fiber optic cables you see strung along telephone poles (aerial), installed inside an underground duct, or even buried directly below ground. The system is comprised of an exterior daylight collecting panel which has 64 Fresnel lenses on the inside. 2mm strength members with a water-resistant filling compound Jelly.