Certified Fiber Optics Practice Exam

Unless otherwise specified, what color should the outer jacket of a laser optimized multimode fiber premise cable be?

1. Yellow

2. Blue

3. Black

4. Aqua

The correct answer is: Aqua

The correct choice is aqua, as this color is standard for laser-optimized multimode fibers, specifically for OM3 and OM4 types. These fiber cables use specific color codes to easily identify their type and intended use according to the Telecommunications Industry Association (TIA) standards. The aqua outer jacket helps differentiate these advanced multimode fibers from standard multimode fibers, which typically have an orange jacket, and single-mode fibers, which are often yellow. The use of specific colors aids installers and technicians in quickly recognizing the cables during installation and maintenance, ensuring the proper types are used for the appropriate applications.