Panduit F91ER3NB1SNM004 OS2 Single-Mode Fiber Patch Cord

The Panduit F91ER3NB1SNM004 Opti-Core patch cord delivers OS2-grade single-mode connectivity for enterprise networks, data centers, and telecom installations requiring long-haul 9/125µm fiber links. This 4-meter simplex cable terminates SC at one end and LC/APC at the other—a common hybrid configuration when interfacing legacy SC equipment racks with newer LC-based switches or media converters. The 1.6mm riser-rated (OFNR) jacket meets plenum-alternative requirements for vertical cable pathways, and the angled physical contact (APC) polish on the LC connector reduces return loss to -60dB typical, critical for high-bitrate applications and wavelength-division multiplexing where back-reflection can degrade signal integrity.

Key Features

OS2 single-mode fiber optimized for 10G/40G/100G Ethernet and long-distance runs up to 10km+ at 1310nm and 1550nm wavelengths

SC simplex to LC/APC simplex hybrid termination for cross-platform connectivity in mixed-generation fiber plants

1.6mm low-profile cable body reduces congestion in high-density patch panels and equipment racks

Riser (OFNR) flammability rating per NEC Article 770 for vertical building risers and general intra-building use

Standard insertion loss specification ensures <0.3dB typical attenuation across the assembly for reliable link budgets

Yellow jacket color coding follows TIA-598-D convention for single-mode OS2 fiber, simplifying field identification and reducing mis-patching risk

Factory-terminated and tested assemblies eliminate field polishing variables and provide immediate deployment readiness

OS2 fiber supports transmission distances that far exceed OM3/OM4 multimode—10GBASE-LR reaches 10km, 40GBASE-LR4 spans 10km, and 100GBASE-LR4 extends to 10km over duplex single-mode pairs, making this patch cord suitable for campus backbone links, metro-area network handoffs, and storage-area network (SAN) extensions. The LC/APC connector uses an 8° end-face angle that directs reflected light into the cladding rather than back toward the source, yielding return loss performance superior to standard PC (physical contact) connectors—essential when working with coherent optics, DWDM systems, or RF-over-fiber applications where reflected energy can interfere with modulation schemes. The SC connector provides a push-pull latching mechanism with a 2.5mm ferrule, widely deployed in Cisco, Juniper, and legacy Nortel equipment, while the LC connector's small form-factor (SFF) footprint doubles port density on modern SFP/SFP+ transceiver modules.

The 1.6mm cable diameter allows tighter bend radii and higher packing density in cable management trays compared to 2.0mm or 3.0mm cordage—particularly valuable in congested equipment racks where every millimeter of routing space counts. Riser rating (OFNR) satisfies NEC 770.154(A) for general-purpose intra-building use and vertical runs between floors, though plenum-rated (OFNP) alternatives are required for air-handling spaces. The 4-meter (13.12 ft) length suits typical rack-to-rack or rack-to-wall connections within the same equipment room; for inter-building links or floor-to-floor vertical pathways, Panduit offers the same termination in extended lengths. Each cable ships individually packaged with protective dust caps on both connectors, and bulk cartons contain 10 assemblies for project deployment efficiency.

This patch cord meets EN 60332-1-2 flame propagation requirements and ships with Panduit's standard insertion-loss test data. Standard polarity (key-up to key-up orientation) ensures drop-in compatibility with TIA-568 structured cabling designs. UPC 61305680449 simplifies inventory tracking and procurement across multi-site installations. For integrators managing hybrid fiber environments—connecting older SC-equipped core switches to LC-based access-layer stacks or bridging SC fiber panels to LC transceiver modules—this hybrid-terminated assembly eliminates the need for midspan adapters or bulkhead couplers, reducing insertion loss points and failure modes in the link.