Panduit FS2EPKELENEM020 20m OM4+ E-Code LC Fiber Patch Cord

Panduit FS2EPKELENEM020 Opti-Core™ OM4+ E-Coded Fiber Patch Cord

The Panduit FS2EPKELENEM020 delivers secure, high-performance fiber connectivity for datacenter and enterprise network installations requiring physical-layer access control. This 20-meter duplex LC patch cord features Panduit's E-code keying system on one end—pairing only with matching coded components—and a standard non-coded LC connector on the other, enabling controlled integration between secure and standard infrastructure zones. Built on OM4+ Signature Core™ fiber with ultra-low insertion loss, it supports 40/100 Gigabit Ethernet applications across distances up to 150 meters at 40G and 100 meters at 100G, with headroom for future 400G migrations. The plenum-rated (OFNP) orange jacket meets strict fire safety codes for above-ceiling and air-handling space installations.

Key Features

• E-Code Physical Security: Color-coded mechanical keying on one LC connector prevents unauthorized cross-connections, ensuring only authenticated patch cords mate with protected equipment ports—critical for defense, finance, and multi-tenant colocation environments where physical access control augments logical security
• OM4+ Signature Core™ Performance: Panduit's enhanced multimode fiber exceeds OM4 specifications for modal bandwidth and insertion loss, delivering 4700 MHz·km effective modal bandwidth and typical IL under 0.15 dB—margins that protect 40GBASE-SR4 and 100GBASE-SR4 link budgets even with dirty adapters or multiple interconnects
• 20-Meter Structured Reach: Spans cross-rack connections in deep datacenters, row-to-row aggregation links, or equipment-to-MDA (main distribution area) runs without mid-span splices, reducing failure points and simplifying troubleshooting in Tier III/IV facilities
• Plenum Fire Rating (OFNP): UL 910 flame-test certified for installation in air-return plenums and horizontal pathways without conduit, meeting NFPA 70 (NEC) Article 770 requirements and most municipal building codes for commercial occupancies
• Duplex LC Low-Profile Design: Industry-standard small-form-factor connectors fit high-density 1U/2U switch faceplates and breakout panels, with push-pull latching that survives 500+ mating cycles and prevents accidental disconnects during adjacent-port maintenance
• Zipcord 1.6mm Jacket: Flat two-cable construction remains flexible in tight bend-radius cable managers and vertical risers, resisting kinking that degrades optical performance or causes premature jacket cracking in high-vibration mechanical rooms

OM4+ multimode fiber operates in the 850 nm window using cost-effective VCSEL transceivers, balancing performance and economy for short-reach datacenter applications. The 50-micron core supports laser-optimized modal bandwidth of 4700 MHz·km—sufficient for 100-meter 100GBASE-SR4 links with 6 dB margin over the IEEE 802.3bm specification. Panduit's Signature Core manufacturing process tightens core concentricity and ovality tolerances, reducing insertion loss variability across production lots and ensuring consistent performance when you're deploying thousands of connections in a refresh cycle. This matters during hot-swap switch upgrades or SFP+ module replacements, where you need every patch cord to meet link budget without field testing.

The E-code keying system uses a removable color-matched collar on the LC ferrule—orange in this case—that blocks insertion into non-coded or mismatched-color ports. In mixed-security environments, you assign E-code colors to classification levels: orange for unclassified equipment zones, red for restricted admin networks, blue for out-of-band management. An integrator pulling an orange-coded patch cord cannot accidentally (or deliberately) connect it to a red-coded secure switch port; the physical mismatch prevents insertion. This augments VLANs and ACLs with a tangible safeguard, visible during audits and effective even when a credential is compromised. The opposite end remains standard non-coded LC, allowing integration with legacy equipment or aggregation layers where physical zoning isn't enforced. This asymmetric design simplifies migration: secure your new gear with coded ports, leave distribution uncoded, and replace patch cords as you expand the secured perimeter.

At 20 meters, this cord addresses cross-row or end-of-row aggregation topologies common in datacenters with 45-foot row spacing and overhead ladder-rack distribution. It's long enough to route from a perimeter equipment rack to a centralized core switch two rows away, following cable tray around obstacles, without requiring mid-span splice enclosures that add 0.3–0.5 dB insertion loss per mated pair. Eliminating splices also removes failure points: every mechanical connection is an opportunity for contamination (dust, oils, moisture) to degrade return loss and increase bit error rates under sustained 25 Gbps-per-lane signaling. The single continuous fiber path from transceiver to transceiver simplifies troubleshooting with an OTDR—one launch zone, one reflection signature—and reduces inventory SKUs compared to maintaining separate 5 m, 10 m, 15 m, and 20 m stock.

Plenum rating is non-negotiable in commercial builds. OFNP jackets use low-smoke, low-flame-spread compounds (typically fluorinated polymers) that self-extinguish and emit minimal combustion byproducts, critical when cables run above drop ceilings in the same airspace feeding HVAC returns. Non-plenum (OFNR riser or OFN general-purpose) cables are code violations in these spaces, flagged during occupancy inspections and costly to remediate post-installation. The orange jacket provides at-a-glance wavelength identification (orange = multimode OM3/OM4/OM4+, per TIA-598-D color coding) and differentiates structured cabling from yellow singlemode or aqua OM3 legacy links during maintenance, reducing the risk of speed/distance mismatches when replacing transceivers.

Typical insertion loss on this assembly is 0.12–0.18 dB per mated connector pair (PC polish, measured at 850 nm), well within the 0.75 dB IEEE 802.3 allocates for a channel's connector budget. Return loss exceeds 20 dB, ensuring reflected energy doesn't destabilize VCSEL transmitters operating at 25.78125 Gbaud (100GBASE-SR4 lane rate). The duplex LC form factor has become the de facto standard for 10G/25G/40G/100G multimode links—your Cisco Nexus, Arista 7000-series, Juniper QFX, and Dell PowerEdge switches all ship with LC-compatible optics—making this patch cord a drop-in component for any major-vendor refresh. Panduit's build quality shows in the connector boot strain relief: molded, not glued, so it won't separate during repeated plugging cycles when you're swapping optics or testing ports.

This cord is RoHS-compliant, lead-free, and ships in cartons of 10 for bulk deployment. It integrates into Panduit's Opti-Core structured cabling system, pairing with Opti-Core cassettes, breakout panels, and enclosures for end-to-end warranted performance. For installations demanding both high throughput and access control, the FS2EPKELENEM020 bridges the gap between standard patch cords and fully classified secure infrastructure—physical keying where it counts, interoperability where it doesn't, and the optical margins to support your next two transceiver generations without re-cabling the backbone.