The color of the jacket on fiber optic cable identifies what type of fiber is used in the jacket. This is specified in TIA 598-C. Single-mode fiber cables made by Schäfter+Kirchhoff are either supplied with a Ø 900 µm buffer and Ø 3 mm jacket with Kevlar strain-relief or with a Ø 900 µm buffer only. Fibers without buffer (with only the Ø 250 µm coating) can be supplied on request. 5-Micron Multimode Orange: OM2 50-Micron Multimode Aqua: OM3 Laser-Optimized 50-Micron Multimode Aqua/Violet*: OM4 Laser-Optimized 50-Micron Multimode. Summary : Fiber optic color codes are crucial for efficient, accurate, and reliable network installations. Following industry. Through the maze of our optical cables and patch panels, the ANSI/TIA-568 and TIA-598-C color codes stand out as our North Star for organization and standardization, especially in fiber optics. This isn't decoration — it's a precisely standardized system that allows technicians to identify individual fibers quickly and consistently.