DIGITUS OS2 LC to LC Duplex Singlemode 9/125µm Fibre Optic Patch Cord, 2m, LSZH, Yellow

The DIGITUS DK-2933-02 is a 2 m duplex singlemode fibre optic patch cord (9/125 µm, OS2) with LC connectors at both ends, for connecting switches, transceivers, patch panels and singlemode network equipment in singlemode installations.

Reach is set by the optics, not by this cord: singlemode transceivers such as 10GBASE-LR are specified by IEEE 802.3 for up to 10 km over OS2 fibre, so a short OS2 patch cord never limits the link.

• 1 × DIGITUS OS2 LC to LC duplex fibre patch cord, 2 m
• Individual test report (supplied with each cord by the manufacturer)
• Single-packed in a DIGITUS polybag

• LC — the small-form-factor latch connector used on SFP, SFP+, SFP28 and QSFP transceivers and on most current switches and patch panels
• 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 2 m it suits patching within a rack or to the next rack in the same row.
• LSZH jacket, 2.0 mm outer diameter: 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.

• Multimode transceivers (SR/SX) and multimode patch panels — singlemode and multimode fibre cannot be mixed on one link.
• Ports with a different connector: this cord needs LC ports at both ends. 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.