Is OM2 fiber suitable for a campus environment when cable distances do not exceed 550 meters for a 1 Gb/s network?

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The main point here is how far 1 Gbps can travel reliably over multimode fiber. OM2 is a 50/125 μm multimode fiber that offers a higher bandwidth-distance capability than older MMF grades. For typical 1000BASE-SX transmission at 850 nm, OM2 can carry 1 Gbps up to about 550 meters. Since the distances in your campus scenario don’t exceed 550 meters, OM2 will meet the link budget and maintain signal integrity, making it a suitable, cost-effective choice for those runs. Temperature effects exist but are not the deciding factor here; the specification is based on the fiber’s design and the chosen wavelength, which establish the practical distance limit for 1 Gbps. If you needed longer runs, you’d look at higher-grade multimode options or a shift to single-mode fiber with appropriate transceivers.