Hitachi Cable Manchester adopts Corning’s OM4 fiber

SEPTEMBER 17, 2009 -- Hitachi Cable Manchester (HCM) says that it will offer cables using Corning’s OM4 optical multimode fiber.

With the approval of EIA/TIA 492AAAD grade multimode fiber, enhanced versions of OM3 50-micron optical fiber will now carry the designation of OM4. Though frequently used in the past as the de facto nomenclature for enhanced OM3 glass, the OM4 designation, which identifies 50-micron glass capable of 10-Gigabit Ethernet out to 550 m, will more clearly identify cable performance levels.

HCM uses Corning optical glass for all its standard products. All HCM fiber-optic cable constructions will be available with Corning’s OM4 fiber-optic glass, the company says.

The OM1, OM2, and OM3 fiber nomenclature originated in the ISO/IEC-11801, second edition standard and is presently being adopted into TIA and other standards. It is expected that the OM4 term will be used in upcoming releases of ISO/IEC documents.

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