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OS2 single-mode.

Also written OS2 fibre, Single-mode OS2, G.652.D.

What is OS2 single-mode fibre?

OS2 is the cabled category for single-mode fibre, the type with a core so narrow that light travels one path. The cabled fibre is allowed at most 0.4 decibels of loss per kilometre, which is why single-mode reaches tens of kilometres. Inside an OS2 cable is G.652.D fibre; specify OS2 for any campus or carrier run.

Defined by ISO/IEC 11801 for the OS2 cabled category, with ITU-T G.652 for the fibre inside it, published by ITU and IEC.

OS2 Singlemode LC-LC Duplex Patch Cord, LSZH · 3 m, a OS2 single-mode part supplied by Data Systems
OS2 single-mode in the catalogue: OS2 Singlemode LC-LC Duplex Patch Cord, LSZH · 3 m, FFWLCLC42-JXM003. Catalogue photograph.

Published by Data Systems, network material suppliers in Secunderabad, Hyderabad since 1984, which is forty years of experience with these parts. Written from the standards named above. Last checked 2026-08-14. How we check this, and what we got wrong.

Data Systems, a network material supplier in Secunderabad, Hyderabad since 1984 with branches in Vijayawada and Visakhapatnam, supplies OS2 single-mode across India through official channels. Send a list, get one quote.

Fibre Cable

Fibre Patch Cord

Fibre Pigtail

Fibre Trunk / MPO Assembly

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