103 describes characteristics, construction and test methods for optical fibre cables for indoor applications. In order for an optical fibre to perform appropriately, characteristics that a cable should have been described. Also, the method of determining whether the cable. Indoor fiber cable is the backbone of modern communication networks within buildings, providing the high-speed data transmission necessary for everything from business operations to home entertainment. As our reliance on fast, reliable internet connectivity grows, so does the importance of. To select the appropriate indoor fiber optic cable, it's essential to grasp the fundamental types available. These cables are primarily categorized into single-mode and multimode fibers.