27mm diameter (thinner than human hair) enables seamless integration into micro-gimbals and robotic joints. 5mm bend radius withstands 180° twists with <0. 500N tensile strength (aramid-reinforced) survives Arctic storms, desert heat, and shock. 0. Leviton reserves the right to modify details without notice in. G657A2 fiber is a type of bend-insensitive single mode fiber standardized by the International Telecommunication Union (ITU-T). It is specifically designed to maintain excellent optical performance even when installed in environments requiring small bending radii. Among these, commonly used standards are G.