Panduit F91EL1NB1SNM025 Opti-Core OS2 Single-Mode Fiber Patch Cord
The Panduit F91EL1NB1SNM025 Opti-Core patch cord delivers OS2 single-mode connectivity for long-reach datacenter and enterprise network links. This 25-meter cable features LC Simplex to LC/APC termination, 1.6mm jacket diameter, and LSZH flame rating—engineered for high-density fiber management in equipment rows, cross-connects, and telecom spaces where fire safety and space efficiency matter.
Key Features
- OS2 single-mode fiber rated for 10 Gb/s transmission over distances up to 10 km, supporting 40G/100G applications with appropriate transceivers
- LC Simplex to LC/APC (angled physical contact) connectors minimize back reflection below -60 dB for sensitive analog/RF-over-fiber and high-speed coherent links
- 1.6mm cable diameter enables higher port density in patch panels and cable managers versus standard 2.0mm or 3.0mm cordage
- LSZH (Low Smoke Zero Halogen) jacket meets EN 60332-1-2 flame rating—required for European installations and recommended for enclosed spaces where PVC off-gas is a liability
- Standard insertion loss specification (≤0.5 dB typical) maintains link budget headroom on 25-meter runs
- Yellow jacket color follows TIA-598-C industry standard for OS2 single-mode identification
- Factory-terminated with Panduit Opti-Core LC connectors—pre-polished, tested, and serialized for traceability
OS2 single-mode fiber uses a 9-micron core to propagate a single light mode, eliminating modal dispersion and extending reach beyond multimode's 300–550 meter ceiling. At 25 meters, this cable fits datacenter row-to-row links, IDF-to-MDF backhaul in commercial buildings, or equipment-to-patch-panel jumpers where multimode would work but future 40G/100G migration or analog video transport (CWDM, DWDM, analog CATV) demands single-mode infrastructure. The LC/APC connector on one end (8° angled endface) is critical for preventing Fresnel reflection in bidirectional fiber links, passive optical LAN (POL) architectures, or any system where return loss below -60 dB is specified—common in security/surveillance IP video backhaul using SFP+ BiDi transceivers or analog PTZ camera fiber transmission.
The 1.6mm jacket is Panduit's answer to congested patch fields: 37% smaller cross-section than 2.0mm cable reduces bundle diameter and bend radius loading in horizontal cable managers, allows tighter routing around dense SFP cages, and improves airflow in the back of the rack. LSZH formulation is mandatory under IEC 60332-1-2 and EN 50399 for European datacenters and increasingly specified in U.S. hyperscale and colocation facilities as operators prioritize occupant safety over cost. When PVC burns, it releases hydrochloric acid; LSZH does not—critical in spaces with limited egress or high equipment value.
This cable ships in a 10-pack carton and includes serialized test reports traceable to Panduit's factory certification. Integrators deploying IP camera networks over single-mode fiber, building out SAN fabrics, or extending 10G links between buildings will find the 25-meter length handles typical datacenter aisle spans (20–24 meters cabinet-to-cabinet) with enough service loop for proper strain relief. The LC Simplex form factor supports breakout from 12- or 24-fiber trunk cables when only one strand is needed per endpoint—common in access layer security switch uplinks or individual camera drops where duplex LC would waste a fiber pair.
