Panduit FS2EPKFKFNFM007 Opti-Core™ OM4+ Coded Fiber Patch Cord
The Panduit FS2EPKFKFNFM007 is a 7-meter, 2-fiber OM4+ Signature Core™ duplex fiber optic patch cord engineered for high-bandwidth datacenter and enterprise AV installations requiring both performance headroom and physical-layer security. Built with F-coded LC duplex connectors, OFNP plenum-rated zipcord jacket, and ultra-low insertion loss terminations, this patch cord addresses the dual challenges of supporting 40/100GBASE-SR4 over extended distances while preventing accidental cross-connections in dense, multi-tenant, or classified environments. The 7-meter length suits typical rack-to-rack runs, cross-aisle links, or equipment room interconnects in structured cabling systems where precise length management reduces slack and simplifies cable dressing in high-density environments.
Key Features
- OM4+ Signature Core™ Fiber: Exceeds OM4 bandwidth specifications—supports 40GBASE-SR4 to 150m and 100GBASE-SR10 to 150m (vs. 100m for standard OM4), providing future-proof margin for evolving 400G applications and extended campus backbone runs.
- F-Code Keyed LC Connectors: Physical keying system prevents mating with non-F-coded connectors, adding a mechanical layer of security to prevent unauthorized or accidental connections in secure facilities, multi-tenant datacenters, defense installations, or financial services environments requiring physical separation of traffic.
- OFNP Plenum Rating: Meets NEC Article 770.113(A) requirements for installation in air-handling spaces (plenums, ducts, above drop ceilings, raised floors) without conduit—self-extinguishing, low-smoke jacket for life-safety compliance in commercial and institutional buildings.
- Ultra-Low Insertion Loss: Factory-terminated with precision-polished LC ferrules to minimize loss budget consumption—critical for maintaining link margin in 40/100G systems with multiple interconnects, consolidation points, or long campus backbone runs exceeding 100 meters.
- Zipcord Jacket Construction: Dual 1.6mm tight-buffered cable configuration provides easy separation for individual fiber management, strain relief, and bend radius control in high-density patch panels (96-port, 144-port LC) or equipment cable managers.
- Dark Blue Jacket: Complies with TIA-598-D color-coding for OM4 laser-optimized 50/125µm multimode fiber, providing instant visual identification in mixed-fiber environments alongside OM3 aqua, OS2 yellow, or OM5 lime green cables.
- 7-Meter Length: Matches common inter-rack distances in datacenter hot/cold aisle layouts (typically 6-8m aisle width), equipment room cross-connects, or AV equipment rack interconnects—reduces slack management overhead and cable congestion vs. longer pre-terminated assemblies.
- Serialized Factory Testing: Each assembly tested to IEC 61300-3-35 insertion loss, return loss, and end-face geometry specifications; ships with individual test report for installation documentation and acceptance testing validation.
- RoHS Compliant: Meets EU Restriction of Hazardous Substances directive for global deployments and sustainability reporting requirements in LEED-certified or green datacenter projects.
OM4+ fiber represents Panduit's Signature Core™ geometry optimization, which tightens core concentricity tolerances, reduces differential mode delay (DMD), and improves effective modal bandwidth (EMB) beyond TIA-492AAAD OM4 minimums of 4700 MHz·km at 850nm. In practical terms, this means you can deploy 40GBASE-SR4 (4×10G parallel optics) or 100GBASE-SR4 (4×25G parallel optics) links at 150 meters instead of the 100-meter OM4 limit specified in IEEE 802.3ba—a 50% range extension that accommodates longer campus backbone runs, cross-building links in adjacent structures, or future 400GBASE-SR8 aggregation uplinks without re-cabling horizontal infrastructure. When planning a spine-leaf datacenter fabric with 100G uplinks from top-of-rack switches to spine switches located in a separate row or aisle, the additional 50 meters of reach can eliminate the need for intermediate fiber distribution panels or active media conversion, reducing both cost and failure points in the physical layer. The ultra-low insertion loss specification (typically <0.25dB per mated connector pair, vs. 0.35dB average for field-terminated connectors) preserves your link budget in architectures with multiple patch points: horizontal consolidation point to equipment room, equipment room to main cross-connect, or through mid-span enclosures in industrial campus networks or outdoor fiber runs. When you're running 100GBASE-SR4 over 120 meters with two interconnects and operating near the IEEE 802.3bm receiver sensitivity limit of -9.5dBm, every tenth of a dB of insertion loss matters—standard patch cords with 0.35dB connectors and 2.5dB/km cable attenuation can push marginal links into bit-error-rate territory under temperature cycling or connector contamination scenarios, while Panduit's factory-terminated assemblies with <0.25dB connectors keep you 1-2dB above threshold with margin for aging and 20+ mating cycles.
The F-code keying system adds a physical security layer that complements—but does not replace—logical port security, VLANs, or access control lists. In multi-tenant datacenters where customers share common meet-me rooms or cross-connect facilities, coded connectors prevent accidental cross-connections during late-night maintenance windows, rapid provisioning under time pressure, or contractor work where staff may not be familiar with customer segregation requirements. An F-coded plug will not physically mate with a standard LC adapter, A-code, B-code, C-code, D-code, or E-code keyed adapters, so you can implement a site-wide color-and-code scheme: F-code dark blue for classified networks, E-code violet for unclassified-but-sensitive, standard LC aqua for guest/public networks. This is particularly valuable in defense installations subject to NISPOM physical security requirements, financial services environments under SEC Rule 17a-4 or FINRA segregation mandates, or healthcare facilities with HIPAA-protected patient data networks that must be physically separated from administrative or IoT networks. The dark blue jacket follows TIA-598-D Appendix A color conventions for OM4 laser-optimized 50/125µm fiber (Option 2, dark blue, distinguishable from OM3 aqua and OM5 lime green), which simplifies day-2 troubleshooting in environments mixing multiple fiber types. When a tech is tracing a 100G link failure at 2am in a dark equipment room with a headlamp, the ability to instantly identify OM4 cables by color prevents the time-consuming mistake of testing an OM3 link with 100G optics (which will fail or operate at reduced distance) or mixing OM4 and OS2 singlemode patchcords (which causes immediate link down due to mode mismatch). The OFNP plenum rating meets NEC Article 770.113(A) requirements for optical fiber cables installed in ducts, plenums, and other spaces used for environmental air without raceway or plenum-rated enclosure. Most commercial office buildings, hospitals, universities, and datacenters route cables above drop ceilings in the return-air plenum or under raised floors in the supply-air plenum; using non-plenum cable (OFNR riser rated or OFN general purpose) in these spaces violates fire code, fails building inspections, and can void property insurance or trigger stop-work orders during construction. Plenum-rated cable is tested to UL 910 (Steiner Tunnel Test) for flame spread and smoke generation—it must self-extinguish within 5 feet and produce <0.5 optical density of smoke to prevent fire propagation and toxic fume accumulation in air-handling spaces that feed breathable air to occupied zones.
The zipcord jacket construction (two individually tight-buffered 900µm fibers in a flat, separable oval sheath, each fiber with its own 1.6mm buffer over 250µm coated fiber) provides several installation advantages over round duplex cable or single-strand simplex cables tie-wrapped together. First, the flat profile and separable design let you route each fiber independently around cable managers, strain relief bars, or patch panel wings when dressing cables into high-density LC panels with 96 or 144 ports in 1RU—you can split the zipcord at the breakout point, route one fiber left and one right to avoid crossing other cables, then rejoin them at the connector boot for clean, maintainable cable dressing that doesn't block access to adjacent ports. Second, the 1.6mm tight buffer over each 250µm coated fiber provides crush resistance and abrasion protection vs. 250µm bare buffered fiber in breakout cable designs, reducing the risk of fiber damage during pulls through cable trays with sharp edges or when cables are pinched under equipment feet during rack installations. Third, the zipcord construction maintains a minimum bend radius of 10x cable diameter (16mm for this 1.6mm cable) under tension and 5x (8mm) when not under tension, which is tighter than the 30mm minimum for 2.0mm round duplex cable—this matters when routing cables around tight corners in vertical cable managers or when forming service loops in overhead cable trays with limited clearance. Panduit's factory termination process eliminates the field-polish variability and contamination risk inherent in field-installed connectors (epoxy-polish, anaerobic adhesive, or mechanical splice types). Each connector is machine-polished to IEC 61300-3-35 end-face geometry requirements (radius of curvature, apex offset, fiber height), tested for insertion loss and return loss on calibrated reference-grade test equipment, and inspected under 400x magnification for scratches, pits, or debris before cleaning and capping for shipment. The result is consistent <0.25dB insertion loss and >35dB return loss across both connectors, with end-face contamination eliminated by factory-applied dust caps that remain in place until final installation. Field-terminated connectors, even when installed by experienced techs with proper cleaving and polishing technique, typically average 0.35-0.50dB insertion loss due to human variability in polish pressure, duration, and end-face cleaning—that 0.10-0.25dB difference per connector compounds across multiple interconnects and can be the difference between a 100G link with 2dB margin and one operating at threshold.
This patch cord integrates into Panduit's Opti-Core™ structured fiber system, which includes FHD high-density fiber enclosures (1RU/144-fiber and 2RU/288-fiber), FMT MTP-to-LC breakout cassettes (12-fiber and 24-fiber), FAP fiber adapter panels (24-port and 48-port LC), and CFP cabinet-mount fiber panels for equipment-side terminations. When designing a 40G/100G datacenter fabric, you can deploy MTP trunk cables (12-fiber or 24-fiber OM4) from equipment room enclosures to in-row distribution panels, break out to LC duplex with cassettes, then use FS2EPKFKFNFM007 coded patch cords for final equipment connections to ensure physical-layer security on server and switch ports. The F-code keying at the equipment end prevents accidental connection of non-secure cables during MAC (move-add-change) work, while the OFNP rating ensures code compliance for the entire horizontal and equipment cabling infrastructure. Panduit backs this system with a 20-year warranty when installed per TIA-568 and manufacturer guidelines, covering both materials and application performance (insertion loss, return loss, length) for the entire channel from wall plate to equipment port. For AV-over-IP installations using SDVoE or Dante AV, where you're distributing uncompressed 4K60 4:4:4 video (12Gbps per stream, typically carried on 10G or 25G Ethernet), the OM4+ bandwidth and low insertion loss ensure you can support multiple parallel streams over 150 meters without signal degradation—critical for large venues (arenas, convention centers, houses of worship) where video distribution equipment is centralized in a headend room and displays are 100+ meters away across the facility. In secure government or military installations, the coded connector system provides a physical means of enforcing classification levels: deploy F-code violet cables for SECRET networks, E-code red for FOUO/CUI, and standard LC yellow for UNCLASSIFIED, with corresponding coded adapters installed in each equipment rack and wall plate. This prevents the catastrophic security violation of accidentally plugging a classified device into an unclassified network, which can occur during rapid deployment or in low-light conditions when relying solely on cable labels or color alone.
