Panduit FHCWA-12-10BN OM5 MPO-LC Fiber Cassette

Panduit FHCWA-12-10BN OM5 HD Flex™ MPO-LC Fiber Cassette

The Panduit FHCWA-12-10BN is an OM5 wideband multimode fiber cassette engineered for 40G, 100G, and 400G short-wavelength-division-multiplexing (SWDM) deployments in high-density data centers and enterprise network cores. This HD Flex™ cassette breaks out a single 12-fiber MPO trunk connector to six duplex LC ports using Method B polarity, the TIA-568 standard for maintaining proper transmit/receive alignment across backbone-to-horizontal fiber runs. The pinned MPO interface and OM5 lime-green 50/125 μm fiber support distances up to 440 meters at 100GBASE-SR4, giving network architects a structured, field-swappable migration path from 10G to 100G without re-cabling the backbone.

Key Features

• OM5 wideband multimode fiber (50/125 μm) with lime-green jacket, rated for 100G/400G SWDM applications at extended reach
• 1×12-fiber MPO female (pinned, key-up) to 6× duplex LC adapters in a single cassette module
• Method B polarity scheme (straight-through MPO, A↔B LC swap) compliant with TIA-568.0-D Annex B
• HD Flex™ modular cassette platform fits Panduit, Corning, CommScope, and industry-standard 1U/2U/4U fiber enclosures
• Push-pull tab design with integrated dust shutter on LC side; no-epoxy, no-polish connectors factory-terminated and tested
• Supports 10GBASE-SR (10G), 40GBASE-SR4 (40G), 100GBASE-SR4 (100G), and future 200G/400G-SR8 short-reach links
• Low insertion loss ≤0.35 dB typical per connection, return loss ≥-20 dB (UPC polish)
• Cassette pulls forward from enclosure for field inspection, cleaning, or replacement without disturbing adjacent modules or trunk cables
• Color-coded lime-green body matches TIA-598 OM5 identification standard; alphanumeric port labels on front face
• Exceeds Telcordia GR-1435 environmental and mechanical endurance requirements for central office deployment

OM5 fiber represents the current generation of wideband multimode technology, optimized for short-wavelength-division multiplexing (SWDM) across four distinct wavelengths (850 nm, 880 nm, 910 nm, 940 nm) within a single 50 μm core. Unlike legacy OM3 or OM4 fiber—which transmit one wavelength per fiber pair—OM5's wider effective modal bandwidth (EMBc ≥2470 MHz·km at 850 nm, ≥1850 MHz·km at 953 nm) allows parallel optics to carry multiple data streams over the same physical strand, effectively quadrupling capacity without adding cable mass or duct fill. The FHCWA-12-10BN cassette's 12 OM5 strands can support up to six independent 100GBASE-SR4 links or be aggregated into 400G-SR8 configurations when paired with appropriate MPO trunk cabling and QSFP-DD transceivers. Method B polarity—implemented here via a key-up-to-key-down flip on the MPO interface and a straight A/B pair swap on the LC side—ensures transmit pins on one end always align with receive pins on the far end, even when installers daisy-chain multiple cassettes through backbone and horizontal segments. This eliminates the trial-and-error polarity testing that plagued early 40G deployments and meets TIA-568.0-D Annex B and IEC 61755-3-31 standards for reproducible, standards-compliant link budgets. The pinned female MPO connector on the trunk side mates with un-pinned male MPO plugs, following the industry gender-swap convention that concentrates alignment pins at a single interface point and prevents port damage during repeated mating cycles.

High-density fiber cassettes like the FHCWA-12-10BN serve as the structured-cabling backbone in environments where space, airflow, and future bandwidth headroom dictate design: hyperscale data centers, colocation facilities, university research networks, broadcast studios, and Fortune 500 campus cores. A typical deployment sees 12-fiber or 24-fiber MPO trunk cables pulled once during initial construction through overhead cable tray or underfloor conduit, terminating at 1U or 2U fiber enclosures mounted in end-of-row or middle-of-row distribution racks. Inside each enclosure, HD Flex cassettes break the high-fiber-count trunk into duplex LC patch cords that connect directly to switch QSFP28/QSFP56 modules or media converters, giving rack-level flexibility without disturbing the permanent backbone. When bandwidth demands increase—migrating from 10GBASE-SR to 40GBASE-SR4 or from 40G to 100G—installers swap cassettes and optics but leave the MPO trunk in place, avoiding the cost, downtime, and pathway congestion of a full re-cable. The front-access pull-tab design allows same-day moves-adds-changes under live-traffic constraints; the cassette slides forward on integrated rails for connector inspection, endface cleaning with IPA wipes and lint-free swabs, or full module replacement, then clicks back into position without requiring adjacent cassettes to be de-mated or trunk cables to be re-dressed. This field-swappable modularity is what makes structured fiber cassette systems the dominant architecture in any facility planning for 10+ year service life or iterative technology refresh cycles driven by compute-density growth or storage-fabric upgrades.

The FHCWA-12-10BN's factory-terminated connectors eliminate field fusion-splicing, epoxy/polish labor, and the endface-geometry variability that causes intermittent link errors in hand-terminated systems. Each LC and MPO interface is individually tested for insertion loss, return loss, and ferrule-endface radius-of-curvature per IEC 61300-3-35 interference standards before the cassette ships, and the assembly carries serialized test data traceable to Panduit's ISO 9001 quality system. The lime-green jacket and matching cassette body provide instant visual confirmation of OM5 fiber type during troubleshooting or MAC work, reducing the risk of mixing OM3/OM4/OM5 segments in the same channel—a mistake that silently degrades link budget and causes intermittent 100G errors under thermal cycling or when transceivers fall back to reduced power modes. The integrated dust shutter on the LC side keeps unused ports sealed until patch cords are inserted, preventing contamination from settling on ferrule endfaces in open-air data halls or facilities without positive-pressure containment. The cassette's high-impact thermoplastic housing withstands the mechanical stress of repeated insertion cycles, cable-management tension, and the thermal swings common in raised-floor environments where cold-aisle temperatures dip to 18°C and hot-aisle exhaust climbs past 40°C. Telcordia GR-1435 compliance confirms the assembly will survive 500+ mating cycles, -40°C to +75°C operational range, and seismic Zone 4 vibration profiles without performance degradation, making it suitable for carrier central offices and mission-critical telecom installations where five-nines uptime is contractual.

Panduit's HD Flex cassette family is built to the same mechanical tolerances and fiber-endface geometry standards as the company's FX fiber enclosures, pre-terminated trunk assemblies, and QuickNet™ plug-and-play systems, ensuring mix-and-match compatibility across product generations and simplifying sparing for multi-vendor environments. For integrators managing data-center migrations under live-traffic constraints, the cassette's front-access design and dust-shutter LC adapters allow connector work without exposing adjacent ports to contamination or requiring traffic to be failed over to redundant paths. The OM5 specification's extended bandwidth headroom supports not only today's 100GBASE-SR4 deployments but also emerging 200G-FR4 and 400G-SR8 standards that will define the next refresh cycle for spine-leaf fabrics and storage-area networks. When your project scope includes 40G spine-leaf fabrics, 100G east-west traffic between hyperconverged clusters, or future 400G backbone upgrades to support AI/ML workloads, the FHCWA-12-10BN delivers the polarity control, insertion-loss consistency, and backward compatibility required to pass acceptance testing and maintain performance over the warranted 25-year structured cabling lifecycle. The Method B polarity implementation ensures interoperability with existing TIA-compliant cassette and trunk systems from any vendor, eliminating the vendor lock-in and re-certification overhead that comes with proprietary polarity schemes, and the pinned-interface convention matches the installed base of MPO infrastructure in 90% of North American enterprise and carrier facilities.