Om4 fiber optic sheath color

The standard jacket color for OM4 multimode fiber optic cables is aqua (turquoise).Jacket ColorOM4 fiber, a laser-optimized multimode fiber (LO-MMF) standardized in 2009, is designed for high-speed data transmission with a modal bandwidth of 4700 MHz·km, supporting 10G, 40G, and 100G Ethernet over longer distances than OM3 . To visually distinguish OM4 from other multimode fibers, the cable jacket is colored aqua (turquoise), whereas OM1 and OM2 use orange jackets, and OM3 also uses aqua but with slightly lower bandwidth . This color coding ensures quick identification during installation and maintenance.Fiber Core Color CodingInside the OM4 cable, individual fibers are tight-buffered and color-coded according to the TIA-598-C standard for multimode fibers . The standard 12-fiber sequence is:BlueOrangeGreenBrownSlateWhiteRedBlackYellowVioletRoseAqua/Turquoise For cables with more than 12 fibers, the sequence repeats with a black stripe or tracer to differentiate groups . This system minimizes errors during splicing and termination.SummaryOM4 Jacket Color: Aqua/TurquoiseFiber Core Colors: Standard 12-color TIA-598-C sequence, repeated for higher fiber countsPurpose: Quick visual identification of fiber type and performance capability, ensuring proper network installation and maintenance . This color coding is widely adopted globally, providing consistency across installations and helping technicians avoid miswiring or misidentification.