UL LLC authorizes the above-named company (Applicant) to reproduce this report provided it is reproduced in i023 UL LLC. They are called butterfly-shaped due to their unique design, which features a flat shape with two parallel fiber ribbons running down the center. The invention belongs to the technical field of optical cables, and discloses a butterfly-shaped drop-in optical cable for communication, which has a fitting part (1), a plurality of protection bodies (2), a plurality of butterfly-shaped drop-in units (3), a protective layer (4), The outer sheath. condition. UL has not established Follow-Up Service or other surveillance of the product and also not involved in any sampl ng process. This article delves deep into the world of FTTH butterfly optic cables, exploring their design, applications, installation process, and much more. Its innovative design positions the communication unit at the core, flanked by two parallel non-metallic strength members (FRP) for enhanced compression resistance and. Butterfly cables offer low signal loss, making them a reliable choice for maintaining communication links. Enhanced Durability: The design also contributes to their.