Panduit F91ERANB1SNM002 Opti-Core® OS2 Single-Mode Fiber Patch Cord

Integrators installing single-mode fiber links between network equipment, patch panels, or long-haul connections need reliable, low-loss interconnects that perform consistently across thousands of mating cycles. This Panduit Opti-Core patch cord delivers OS2 single-mode performance with factory-terminated SC/APC and LC/APC connectors, eliminating field termination errors and ensuring documented insertion loss across your fiber infrastructure. The 2-meter length handles typical equipment-to-patch-panel or cross-connect jumpers in datacenter and telecom environments where cable management and optical budget both matter.

Key Features

• OS2 single-mode fiber supports 10GBASE-LR, 40GBASE-LR4, and 100GBASE-LR4 over distances up to 10km
• SC/APC to LC/APC connectors with 8° angled polish deliver <-60dB return loss for coherent optics and DWDM systems
• 1.6mm yellow cable jacket provides easy visual identification and fits high-density patch panel environments
• Riser (OFNR) flame rating complies with NEC 770.154(A) for in-building vertical riser installations
• 2-meter length ideal for rack-to-rack or equipment-to-panel scenarios without excess slack
• Factory-terminated and tested for <0.5dB typical insertion loss—no field termination variability
• Green connector boots mark APC terminations, preventing accidental mating with UPC ports

The OS2 specification ensures this cable supports 10GBASE-LR, 40GBASE-LR4, and 100GBASE-LR4 applications over distances up to 10 kilometers, with extended reach possible at lower speeds. The angled physical contact (APC) polish on both SC and LC ends reduces back-reflection to below -60dB—critical for high-speed coherent optics, passive optical networks, and DWDM systems where return loss degrades signal integrity and bit error rates. Standard UPC (ultra-physical contact) connectors typically achieve only -50dB return loss, making APC the correct choice for any installation where optical budget or signal quality matters. The green connector boots follow TIA-598-C industry-standard color coding for APC terminations, providing immediate visual confirmation and preventing accidental mating with blue UPC ports that would cause permanent connector endface damage requiring re-polishing or replacement.

This patch cord fits datacenter, telecom central office, and enterprise campus fiber backbones where single-mode fiber infrastructure is already installed. The SC connector remains common on older SONET/SDH equipment, media converters, fiber distribution panels, and coarse/dense wavelength division multiplexers, while LC dominates modern Ethernet switch SFP, SFP+, and SFP28 transceiver ports. The 2-meter length handles typical rack-to-rack connections or equipment-to-wall-mount-panel scenarios without the excess slack that creates cable management problems and increases failure risk during adds-moves-changes. The 1.6mm simplex jacket is compact enough for high-density patch panel environments but robust enough to withstand repeated handling during MAC work. Yellow jacket color is the TIA-598-C standard for OS2 single-mode cable, making it instantly distinguishable from OM3/OM4 multimode orange or OM5 aqua cables during troubleshooting or maintenance.

Riser (OFNR) flame rating meets NEC Article 770.154(A) requirements for vertical cable runs in non-plenum building spaces—verify your local authority having jurisdiction requirements if installing in plenum air-handling spaces above drop ceilings or under raised floors, which typically require OFNP plenum-rated cable. Panduit factory-terminates and insertion-loss-tests every Opti-Core patch cord before shipment, delivering consistent <0.5dB typical loss and eliminating the field-termination variability that comes from hand-polishing connector endfaces on-site. When your 10GBASE-LR link budget allows 1.5dB total channel loss and you are already investing in $200+ transceivers and managed switch ports, a factory-tested patch cord with documented performance is more cost-effective than troubleshooting intermittent errors caused by a poorly terminated field connector.