Fiber types vary in performance and applications. OS1 and OS2 pertain to single-mode fibers, with OM1, OM2, OM3, and OM4 representing multimode grades, each with distinct transmission ranges and bandwidths. Fiber optic cables are available in different types, designed to cater to specific environmental conditions and installation requirements. Indoor fiber. The National Electrical Code (NEC) in the United States, and similar standards in other countries, mandate specific fire ratings for cables installed in different parts of a building. Plenum-rated cables are designed for use in plenum spaces, such as the areas above suspended ceilings or below. Fiber optic cables are often seen as the gold standard for network cabling. Often, fiber enters the structure to a centralized rack or data room where it is connected to a modem. The modem connects to a network switch which connects each remote.
[PDF Version]