Equip OM3 LC to SC Duplex Multimode 50/125µm Fibre Optic Patch Cord, 5m, LSZH, Aqua

The Equip 255315 is a 5 m duplex multimode fibre optic patch cord (50/125 µm, OM3) with an LC connector on one end and an SC connector on the other, for connecting switches, transceivers, patch panels and servers and storage in multimode installations.

OM3 is the laser-optimised multimode grade for 10G short reach: IEEE 802.3 specifies 10GBASE-SR for up to 300 m on OM3 (and 40G/100G SR4 for up to 100 m), so at patch-cord length the fibre is never the bottleneck.

• 1 × Equip OM3 LC to SC duplex fibre patch cord, 5 m
• Measurement protocol (included with each cable by the manufacturer)

• LC — the small-form-factor latch connector used on SFP, SFP+, SFP28 and QSFP transceivers and on most current switches and patch panels
• SC — the larger square push-pull connector found on many patch panels, media converters, FTTH ONTs and older switch optics
• Duplex means two fibres in one cord — one transmits, one receives — the normal format for a switch-to-switch, switch-to-server or switch-to-patch-panel link.
• At 5 m it suits runs between neighbouring racks or from a patch panel to equipment across the room.
• LSZH jacket: low smoke and zero halogen if it ever burns, which is what most offices, server rooms and public buildings ask for indoors.
• If a new duplex link stays down, the most common cause is crossed transmit/receive — swap the two fibres at one end and test again. Also check that both transceivers are the same type and wavelength.

• Singlemode transceivers (LR, LX, ER, BiDi singlemode) and OS1/OS2 singlemode cabling — multimode and singlemode fibre cannot be mixed on one link.
• Legacy 62.5/125 µm (OM1) cabling — the core size differs, so mixing it with this 50/125 µm cord adds large loss.
• Ports with a different connector: this cord needs an LC port at one end and an SC port at the other. For any other combination choose a different cord rather than adding adapters to the link.
• Copper RJ45 ports — a fibre cord needs an optical port, an SFP/SFP+ transceiver or a media converter at each end.