AFL's ADSS (All-Dielectric Self-Supporting) fiber optic cable is designed for aerial installation without the need for messenger wire. Lightweight, non-metallic, and durable, it's ideal for power utility and telecommunications applications in harsh environments. com 1 (800) 866-7385 © 2024, AFL, all rights reserved. With an all-dielectric design, it can be installed along / near overhead power lines eliminating risks of electromagnetic interference from high. Micromodule: thin wall flexible tubing, FlexTube®, filled with a suitable compound, housing the single-mode optical fibres. Longitudinal Water Tightness: water swellable materials (dry core).