Fibre optic cable manufactured by Prysmian Draka. Available as OM1, OM3, OM4 multimode fibre cables or OS2 singlemode fibre cable, loose tube or tight buffered either unarmoured or with a steel tape armour. Corning ribbon plenum cables are designed for use in plenum, riser and general purpose environments for intrabuilding backbone installations and for high-fiber-count data centers. These cables consist of 12 to 216 fibers organized into 12-fiber ribbons inside a central tube. ISO/IEC 11801 and 24702 make it clear that the nomenclatures OM1, OM2, OM3, OS1, and OS2 relate to cable transmission performance whereas the BS EN 50173 series makes it even clearer by describing the OM/OS nomenclature as "optical fiber cable categories". OM (Optical Multimode): Used for. OS2 is the standard for long-range networking, capable of carrying signals up to 200 km and achieving transmission rates exceeding 10Gbps. In the complex landscape of fiber optic infrastructure, selecting the right cable type—single-mode (OS1/OS2) or multimode (OM1/OM2/OM3/OM4/OM5)—can define a network's speed, reach, and cost-effectiveness. This guide dissects their technical nuances, evolution, and real-world applications.
