Fusion splicing is a popular method of connecting butterfly-shaped optical fiber cables. It involves welding two fiber cables together using. This fiber optic patch cord is widely used for indoor wiring, security monitoring, FTTH, Computer room, fiber optic terminal box, fiber optic cable splicing equipment, etc. A cross section of the outer sheath (1) is in a butterfly shape. This geometry gives the cable its distinctive look. For self-supporting access network, the butterfly introduction of indoor optical cable positions the communication unit in the center, with two parallel non-metallic strength members (FRP) placed on both sides. Additionally, an outer steel wire strength member is attached, and finally, it is. One-core and two-core butterfly cables are mainly used for FTTH construction and part of residential lines.