equip LC to LC Fibre Optic Patch Cable, OS2 Single-Mode 9/125µm, Duplex, LSZH, 1m, Yellow

The equip 254431 is a duplex OS2 single-mode fibre optic patch cable (9/125µm) with LC connectors on both ends, 1m long with an LSZH jacket. It is made for connecting switches, servers, media converters and fibre patch panels in building backbones, telecom rooms and long single-mode links.

The jacket follows the standard colour code (yellow for OS2), so the cord is easy to identify in a mixed rack. LC is the small push-latch connector used on SFP/SFP+ optics, on most current switch and server ports and on high-density patch panels.

• 1× equip LC–LC OS2 duplex fibre patch cable, 1m
• Transceivers, couplers and cleaning tools are not included

• OS2 single-mode fibre carries the 1310/1550 nm light used by single-mode optics (1000BASE-LX, 10GBASE-LR and similar). The same cord type serves short patches and long backbone links — reach is set by the transceivers and the whole link, not by this cord.
• Duplex means two fibres — one transmits, one receives. If a link does not come up, the usual cause is crossed polarity: reverse the two connectors at one end.
• The LSZH (low smoke, zero halogen) jacket is meant for indoor use where fire safety matters: in a fire it gives off less smoke and no corrosive halogen gases.
• At 1m, it suits patching inside one rack or between a panel and the switch directly below it.

• Multimode transceivers (SX, SR, 850 nm) or multimode panels — a single-mode cord will not give a reliable link with them.
• APC ports (green connectors, angled polish) — this is not an APC cord; mating non-APC and APC connectors damages the end faces and causes high loss.
• Ports with a different connector type — this cord has LC on both ends only; for SC or ST ports you need a cable with those connectors.
• Copper RJ45 ports — fibre needs an optical transceiver or media converter at each end.
• Outdoor, underground or direct-burial runs — this is an indoor patch cable.