Indoor optical cables are designed to provide reliable and efficient data transmission within buildings and confined spaces. As our reliance on fast, reliable internet connectivity grows, so does the importance of. Tight-Buffered Distribution Cable — Specifically engineered for data centers, LANs, and backbone cabling. The indoor tight-buffered fibre optic cable handles frequent flex and movement without fiber stress, making it a practical choice in active environments where cables are regularly re-routed. Understanding their inner workings helps us appreciate their role in supporting. Recommendation ITU-T L.