Panduit FDC9N-24-10ASRH 24-Fiber LC/MPO-12 OS2 Cassette

Panduit FDC9N-24-10ASRH FlexCore 24-Fiber OS2 Fiber Optic Cassette

The Panduit FDC9N-24-10ASRH is a FlexCore front-access fiber optic cassette engineered for high-density singlemode breakout in ODF and OSF enclosures. This 24-fiber OS2 module converts two MPO-12 male trunk connections into twelve LC duplex ports, implementing Method A polarity for straightforward base-12 structured cabling deployments. Designed for datacenter fiber migrations, telecom distribution frames, and enterprise backbone installations, this cassette eliminates mid-span polarity guesswork while delivering the port density required for 10G, 40G, and 100G infrastructure scaling. The right-hand orientation standardizes patch panel layout across multi-frame installations, and the black polycarbonate housing provides mechanical protection for precision-aligned connector interfaces. When you're breaking out MPO trunk cables to duplex LC patch cords—whether for SAN fabric zoning, horizontal fiber distribution, or equipment rack terminations—this cassette ensures Method A polarity compliance without field rework or custom adapter dongles.

Key Features

• 24-Fiber OS2 Singlemode Capacity: 9/125µm glass optimized for long-reach 10GBASE-LR, 40GBASE-LR4, and 100GBASE-LR4 links across campus and metro distances
• LC Duplex to 2x MPO-12 Male Configuration: Twelve LC duplex ports (24 fibers) map to two 12-fiber MPO trunk interfaces for 6:1 breakout density
• Method A Polarity: Straight-through pinout (Position 1→Position 1) compatible with base-12 trunk polarity standards and industry-standard MPO cable assemblies
• Right-Hand Orientation: Standardized adapter positioning for consistent left-to-right patching convention in multi-cassette frames
• Standard Insertion Loss Grade: Factory-terminated and tested for reliable optical performance without premium-grade cost overhead
• FlexCore ODF/OSF Compatibility: Front-access design fits Panduit FlexCore high-density enclosures for tool-free cassette insertion and removal
• Multi-Standard Compliance: Meets ISO/IEC 11801, ANSI/TIA-568-C.3, TIA-604-5 (FOCIS-5), TIA-604-10 (FOCIS-10), IEEE 802.3, and ANSI T11.2 Fibre Channel specifications
• Black Polycarbonate Construction: Rigid housing protects internal fiber routing and connector alignment during installation and maintenance cycles
• Compact 11.7mm Height: Low-profile form factor maximizes cassette count in 1U and 2U ODF chassis without exceeding bend-radius limits

The FDC9N-24-10ASRH implements Method A polarity, the most common MPO-to-duplex breakout scheme in structured cabling. In Method A, fiber Position 1 on the transmit MPO connector maps directly to Position 1 on the receive MPO connector—no crossover at the trunk level. The cassette's internal fiber routing crosses pairs within each LC duplex adapter (Position 1 TX → Position 2 RX, Position 2 TX → Position 1 RX), ensuring proper transmit-to-receive pairing when patching duplex LC equipment cords. This architecture works seamlessly with straight-through MPO trunk cables (Type A or Type B depending on male/female configuration) and eliminates the need for polarity-reversing adapter modules or custom pinout documentation. For base-12 deployments—where each 12-fiber MPO trunk serves six duplex LC ports—Method A provides intuitive scalability: add cassettes and trunks in matched pairs, and the polarity self-corrects. The right-hand orientation ensures that when you're standing in front of an ODF frame, LC Port 1 is always on the left and Port 12 on the right, matching the physical sequence of rear MPO positions. This consistency matters when documenting cross-connects in DCIM systems or troubleshooting fiber paths during maintenance windows—technicians can rely on positional logic rather than tracing individual fibers with visual fault locators.

This cassette solves a specific problem in high-density fiber environments: translating MPO trunk cables (which carry 12 or 24 fibers in a single connector) into individual duplex LC ports that match the interface density on switches, storage arrays, and media converters. In a datacenter spine-and-leaf architecture, for example, you might run 12-fiber or 24-fiber MPO trunks vertically through overhead cable trays from a main distribution area (MDA) to each horizontal distribution area (HDA). At the HDA, FDC9N cassettes break out those trunks into LC duplex ports for patching to top-of-rack switches. The 24-fiber capacity means one cassette handles two 12-fiber trunks or one 24-fiber trunk (if using a fanout harness), and twelve cassettes in a 1U FlexCore chassis deliver 288 LC simplex fibers (144 duplex ports) in a single rack unit. The front-access design lets you swap cassettes without disturbing rear trunk connections—critical when adding capacity or migrating polarity methods during phased network upgrades. Right-hand orientation standardizes the patch field layout, so when you're looking at a row of cassettes, Port 1 is always leftmost and ports increment left-to-right. That positional consistency reduces patching errors during late-night cutovers and simplifies documentation in systems like NetBox or Sunbird DCIM, where port maps rely on predictable numbering schemes.

The cassette meets ISO/IEC 11801 and ANSI/TIA-568-C.3 performance requirements for singlemode structured cabling, ensuring insertion loss and return loss values stay within channel budgets for 10GBASE-LR (10 km), 40GBASE-LR4 (10 km), and 100GBASE-LR4 (10 km) Ethernet links. It also complies with TIA-604-5 (FOCIS-5) for LC connectors and TIA-604-10 (FOCIS-10) for MPO-12 interfaces, guaranteeing mechanical interoperability with any standards-compliant cable assembly or adapter. IEEE 802.3 and ANSI T11.2 Fibre Channel compliance makes this cassette equally suitable for Ethernet storage networks and dedicated SAN fabrics—whether you're patching 16G/32G Fibre Channel HBAs or 25G/100G Ethernet NICs, the OS2 fiber and Method A polarity will support the physical layer without attenuation or modal dispersion issues. The polycarbonate housing withstands the mechanical stress of repeated cassette insertion and removal in tool-free FlexCore frames, and the black finish visually distinguishes singlemode cassettes from multimode variants in mixed-fiber installations. When your deployment demands scalable, polarity-correct, front-access fiber breakout that integrates with Panduit's FlexCore infrastructure, this 24-fiber OS2 cassette delivers the pinout accuracy and port density to keep horizontal and backbone fiber paths traceable, testable, and ready for 100G migration.