Panduit F91EL1NB1SNM003 Opti-Core OS2 Single-Mode LC Simplex to LC/APC Fiber Patch Cord
The Panduit F91EL1NB1SNM003 is a 3-meter OS2 single-mode fiber optic patch cord engineered for datacenter, telecom, and enterprise network applications requiring low-loss, long-distance connectivity. Built under Panduit's Opti-Core product line, this simplex cable features LC connectors on both ends—standard LC on one side and LC/APC (angled physical contact) on the other—delivering the sub-0.3 dB insertion loss and <-60 dB return loss performance critical for DWDM, high-speed storage networks, and analog RF-over-fiber links. The 1.6mm LSZH jacket meets EN 60332-1-2 flammability standards for installation in vertical cable runs and enclosed pathways where halogen-free smoke safety is mandated by building codes or insurance underwriters.
Key Features
- OS2 9/125 single-mode fiber rated for 10G/40G/100G Ethernet and distances up to 10 km (10GBASE-LR) or 40 km (extended-reach optics)
- LC Simplex to LC/APC connectors: standard UPC on one end, 8° angled APC on the other for applications sensitive to back-reflection (CATV, PON, coherent optics)
- Standard insertion loss (IL) specification ensures compatibility with TIA-568 and IEC 61300-3-4 channel budgets
- 1.6mm cable diameter for high-density patch panel deployments and tight-radius routing in cable managers
- LSZH (Low Smoke Zero Halogen) jacket rated to EN 60332-1-2 for vertical flame propagation resistance without toxic halogen emissions
- Factory-terminated and tested—eliminates field fusion splicing, epoxy curing, and cleaving errors that degrade optical performance
- Yellow jacket follows TIA-598 color-coding convention for single-mode fiber identification in mixed multimode/single-mode environments
- 3-meter (9.84 ft) length suited for rack-to-rack interconnects, patch panel to switch uplinks, or structured cabling horizontal cross-connects
Single-mode OS2 fiber delivers the modal bandwidth and chromatic dispersion characteristics necessary for wavelengths from 1260 nm to 1625 nm, covering the O-band through L-band spectrum used by 10GBASE-LR/ER/ZR transceivers, 40GBASE-LR4 QSFP+ modules, 100GBASE-LR4 optics, and CWDM/DWDM mux systems. The 9-micron core diameter supports a single propagation mode, preventing the modal dispersion that limits multimode fiber to 550 meters at 10 Gbps. Installers spec OS2 when the link budget requires attenuation below 0.4 dB/km or when future migration to 25G/50G/100G per-lane rates is planned without re-cabling. The LC/APC connector on one end uses an 8° angle-polished ferrule endface to direct Fresnel reflection away from the fiber core, achieving return loss below -60 dB—critical for preventing signal degradation in coherent detection systems, upstream GPON/XGS-PON transmitters, and externally modulated CATV lasers where even -40 dB return loss causes bit errors or composite second-order (CSO) distortion. Standard LC UPC on the opposite end mates with the vast majority of enterprise switch and media converter ports. Simplex construction with separate transmit and receive fibers (versus duplex zipcord) is specified when patch panel density, cable management, or polarity requirements favor individual 1.6mm legs over bonded 2mm or 3mm duplex assemblies.
This 3-meter length fits the most common datacenter and equipment room scenarios: top-of-rack switch to aggregation switch (same row), patch panel to SAN storage array in adjacent racks, or fiber distribution unit (FDU) to wall-mounted media converter. The 1.6mm outer diameter allows 50–70% higher port density in breakout panels compared to 2mm duplex cables, and the reduced bend radius (10× OD minimum = 16mm) permits routing through horizontal 1U cable managers without kinking. LSZH jacketing is required by NEC Article 770 for riser and plenum spaces in commercial buildings where PVC combustion byproducts (hydrochloric acid, dioxins) present life-safety hazards during fire, and by international standards including IEC 60332-1-2 and BS EN 50265 enforced in EU, APAC, and Middle East installations. LSZH compounds also meet the low-corrosive-gas requirements of ISO 11801 and CENELEC EN 50173 for equipment rooms housing sensitive telecom electronics. Factory termination ensures each connector meets IEC 61300-3-35 endface geometry limits (radius of curvature, apex offset, fiber height) and TIA-568.3-D insertion loss grades—eliminating the 15–25% field-termination failure rate caused by contamination, incorrect epoxy cure, or scratched ferrules that add 0.5+ dB loss per mating point.
EN 60332-1-2 vertical flame propagation certification confirms the cable self-extinguishes when the ignition source is removed and does not propagate flame beyond the test specimen height, meeting the fire-performance threshold for riser-rated installations under IEC standards. Panduit Opti-Core cables ship in cartons of 10, with each patch cord individually bagged and labeled with test data. The F91EL1NB1SNM003 directly addresses the network architect's need for a standards-compliant, APC-ready single-mode jumper that installs without additional testing gear, fits high-density infrastructure, and satisfies both North American (NEC, TIA) and international (IEC, EN) code authorities—delivering the performance headroom and physical flexibility that separates Tier-1 datacenter builds from commodity structured cabling.
