Panduit F91ERANB1SNM008 Opti-Core OS2 Single-Mode Fiber Patch Cord
The Panduit F91ERANB1SNM008 delivers precision single-mode fiber connectivity for datacenter, enterprise campus, and telecom installations requiring low-loss, long-distance transmission. This 8-meter simplex patch cord terminates SC/APC on one end and LC/APC on the other—both with green angled physical contact connectors—over OS2 single-mode fiber in a riser-rated 1.6mm jacket. The APC polish on both ends reduces return loss to below -60 dB, critical for high-speed protocols, DWDM systems, and any application where back-reflection degrades signal integrity. Panduit manufactures Opti-Core patch cords in ISO-certified facilities with automated polishing and 100% factory testing, ensuring insertion loss stays within 0.3 dB typical and every connector meets TIA-568 geometry specs out of the box. This SC-to-LC configuration bridges legacy SC-terminated equipment (older switches, media converters, SFP modules) to modern LC-dense patch panels and transceivers, a common requirement during phased infrastructure upgrades or when interconnecting multi-vendor platforms.
Key Features
- OS2 single-mode fiber: 9/125 µm core/cladding supports 10G/40G/100G Ethernet, Fibre Channel, and DWDM to 40 km or beyond with appropriate optics
- SC/APC to LC/APC connectors: green angled physical contact on both ends for <-60 dB return loss, eliminating back-reflection interference in analog video, CATV, PON, and coherent optical systems
- 1.6mm simplex cable jacket: tight bend radius (10x cable diameter minimum) and low profile for high-density cable management in 1U-deep patch panels and cramped rack pathways
- Riser (OFNR) flammability rating: UL 1666 listed for vertical runs in non-plenum spaces, meets NEC Article 770 for intra-building backbone and riser installations
- 8-meter (26.25 ft) length: pre-terminated and factory-tested, eliminating field termination labor, polish defects, and the test equipment overhead of site-assembled jumpers
- Yellow jacket: industry-standard color code for single-mode OS2 fiber, instant visual identification in mixed multimode/single-mode environments per TIA-598-D
- Standard insertion loss: ≤0.3 dB typical across 1310 nm and 1550 nm windows, verified on each connector during manufacturing with calibrated IL test sets
- Panduit Opti-Core construction: epoxy-free mechanical splice inside connector body, factory-polished ceramic ferrules, strain relief boot over 900 µm buffer tube for bend protection at connector interface
Single-mode OS2 fiber operates at 9 µm core diameter, confining light to a single propagation mode and virtually eliminating modal dispersion—the bandwidth ceiling that limits multimode fiber to 300-550 meters at 10 Gb/s. This patch cord supports 10GBASE-LR to 10 km, 40GBASE-LR4 to 10 km, 100GBASE-LR4 to 10 km, and with ER/ZR optics extends those distances to 40 km or 80 km over the same fiber, making OS2 the only future-proof choice for inter-building campus links, metro-area dark fiber runs, and datacenter interconnects. The APC (8° angle) polish on both SC and LC connectors drives return loss below -60 dB, compared to -50 dB for flat UPC connectors; that 10 dB improvement matters in applications transmitting analog RF over fiber (CATV headend distribution, DAS remotes), passive optical networks (GPON/XGS-PON ONTs), and any coherent-detection scheme (100G/400G CFP2-DCO modules) where reflected light creates beat interference with the local oscillator. The SC connector uses a 2.5mm ceramic ferrule in a push-pull latching body, dominant in telco central offices and older enterprise cores; the LC connector uses the same 2.5mm ferrule in a smaller form factor with an RJ-45-style release tab, now the de facto standard in SFP/SFP+/SFP28/QSFP transceivers and high-density panels. This SC-to-LC hybrid configuration solves the adaptor problem during migrations: connect the SC end to legacy equipment (Cisco 6500 supervisor GBICs, Brocade 4 Gb FC switches, standalone media converters with SC bulkhead jacks) and the LC end to modern 10G/25G optics without needing SC-to-LC adaptors that add 0.2-0.5 dB loss per mated pair and create failure points in the optical path.
The 1.6mm jacket diameter keeps this simplex cord manageable in congested rack environments—contrast with 3.0mm duplex zip-cord or 2.0mm distribution cable, both of which consume more pathway volume and resist tight bends. Panduit specs a 16mm minimum bend radius (10x diameter) under no-load conditions, tightening to 30mm during installation pulls; that lets you route this jumper through 1U-deep horizontal cable managers (Panduit WMPV1E, Chatsworth 13145 series), around tight 90° corners in vertical managers, and through the 25mm inner radius of Panduit fiber exit spools without inducing macrobend attenuation (the 0.1-0.5 dB loss that appears when you kink single-mode fiber beyond its minimum bend spec). The yellow jacket follows TIA-598-D Appendix A color code: yellow = single-mode OS2, orange = multimode OM1/OM2, aqua = multimode OM3/OM4, lime green = multimode OM5, violet = military-grade single-mode. This color-coding is critical during adds/moves/changes—technicians can distinguish single-mode uplinks (typically carrying 10G LR or 40G LR4 long-reach optics) from multimode horizontal or inter-rack links (10G SR, 40G SR4 short-reach optics) at a glance, reducing the risk of plugging an LR transceiver into a 50-meter multimode run and wondering why the link won't train. The riser (OFNR) flammability rating meets UL 1666 riser flame test and NEC Article 770.113(B) for vertical runs between floors in non-plenum spaces—think telecom closet to telecom closet in a multi-story office building, or floor-to-floor backbone in a hospital or university. Riser-rated cable costs less than plenum (OFNP) but cannot legally run in HVAC return-air spaces; if your pathway is above a drop ceiling used for air return, you need OFNP. If the pathway is a closed conduit, riser raceway, or enclosed shaft, OFNR is code-compliant and the more economical choice.
Panduit manufactures Opti-Core patch cords with automated polishing stations that hold sub-0.15 µm surface finish Ra across the ferrule endface, then inspects every connector under 400x microscope for scratches, pits, and core-to-ferrule concentricity before shipping. Each cord ships with individual test data showing insertion loss at 1310 nm and 1550 nm, typically ≤0.25 dB for LC and ≤0.30 dB for SC connectors. That factory verification eliminates the gamble of field-terminated jumpers, where hand-polishing inconsistency, contamination during epoxy cure, or improper cleave angle can push insertion loss above 0.5 dB and fail certification. The 8-meter length covers typical cross-connect scenarios: patch panel to switch in the same rack (1-2 meters), adjacent racks (3-5 meters), or across-aisle connections in datacenter hot-aisle/cold-aisle layouts (6-8 meters). For installations demanding traceable compliance—financial datacenters, healthcare imaging networks, federal government facilities—Panduit's ISO 9001:2015 manufacturing certification and UL listing provide the audit trail inspectors expect, and the Opti-Core brand signals a tier above generic white-box imports that lack factory IL testing, serialized documentation, or any recourse when a connector fails in the field. If you're bridging SC-equipped legacy infrastructure to LC-dense modern optics over single-mode fiber in a riser-rated pathway, the F91ERANB1SNM008 delivers the low-loss, APC-polished, factory-certified interconnect your deployment requires.
