Panduit FC29N-24-10U OptiCom™ MPO-to-LC Fiber Cassette

The Panduit FC29N-24-10U is a 24-fiber OS2 single-mode cassette module that converts two 12-fiber MPO trunk connections into twelve duplex LC ports, delivering high-density fiber breakout for data center and enterprise backbone installations. Built on Panduit's OptiCom™ modular platform, this cassette handles 40GBASE-SR4 and 100GBASE-SR10 parallel optics breakout, QSFP+ to SFP+ migration paths, and backbone-to-horizontal distribution with universal polarity support—eliminating the need for multiple cassette SKUs or field polarity testing. The black polycarbonate housing integrates two MPO-12 male connectors (key-up orientation) on the trunk side and twelve blue LC duplex adapters on the breakout side, with factory-terminated 9/125µm OS2 fiber maintaining <0.5dB insertion loss per connection. This cassette fits standard OptiCom enclosures and high-density patch panels, giving fiber installers a field-swappable module that supports TIA-568 polarity methods A, B, and C without re-termination, critical for installations where polarity requirements shift during phased deployments or when integrating multi-vendor active equipment.

Key Features

• 24-fiber capacity: two MPO-12 trunk ports break out to twelve duplex LC connections for 40G/100G parallel optics or 10G aggregation
• Universal polarity method supports TIA-568 Method A, B, and C configurations without cassette replacement or adapter flipping
• OS2 single-mode fiber with 9µm core diameter, rated for 10km+ reaches at 10G and up to 40km at 1G with appropriate optics
• Factory-terminated MPO and LC connections with <0.5dB insertion loss, shipped with full test reports for compliance documentation
• OptiCom™ modular platform: hot-swappable cassette design allows field upgrades or topology changes without disturbing adjacent circuits
• Black polycarbonate housing with integrated strain relief and snap-in retention for tool-free installation in OptiCom enclosures
• MPO-12 male (key-up) connectors with push-pull latches and twelve blue LC duplex adapters color-coded for single-mode identification
• Fits 1U and 2U OptiCom panels, supporting up to 144 LC ports per rack unit when fully populated
• RoHS compliant; manufactured under ISO 9001 quality system with batch-level traceability for mission-critical deployments
• Ships in cartons of 10 cassettes with protective end caps and individual serial numbers for inventory tracking

High-density fiber deployments in data centers and telecom facilities face a persistent challenge: balancing port count against serviceability while maintaining polarity compliance across diverse active equipment. The FC29N-24-10U addresses this through Panduit's OptiCom cassette architecture, which isolates 24 fibers into a single field-replaceable module. Each cassette accepts two 12-fiber MPO trunk cables (typically routed from backbone switch fabrics or inter-building OSP links) and breaks them out to twelve duplex LC ports, providing the 1:12 fanout ratio required for QSFP+ optics (4 fibers) or SFP+ arrays. The universal polarity configuration uses a keyed internal routing that automatically adapts to Method A (straight-through), Method B (flipped), or Method C (array) polarity schemes, determined by the trunk cable type rather than the cassette itself. This eliminates the most common source of fiber deployment delays—discovering mid-install that cassette polarity doesn't match the trunk infrastructure—and allows installers to stock a single cassette SKU for projects where final switch selection is pending or where multi-vendor equipment will coexist. The black housing uses Panduit's pinned retention system, which snaps into OptiCom panel slots without screws and can be extracted under tension without releasing adjacent modules, critical when troubleshooting individual links in fully-populated 144-port arrays.

OS2 fiber specification (9/125µm single-mode) positions this cassette for long-reach and future-bandwidth installations where multimode's distance limits become prohibitive. OS2 supports 10GBASE-LR optics to 10km, 40GBASE-LR4 to 10km, and 100GBASE-LR4 to 10km over standard SMF, with extended-reach optics pushing 40km+ for metro and campus backbone links. The 9µm core diameter maintains modal bandwidth across the C-band and L-band spectrum, ensuring compatibility with CWDM and DWDM multiplexing when future capacity demands exceed initial 10G or 40G deployments. Factory termination delivers <0.5dB insertion loss per mated pair (MPO-to-fiber and fiber-to-LC), with <0.3dB typical in production, and return loss >50dB to minimize reflective crosstalk in high-speed signaling. Each cassette ships with individual test reports documenting IL/RL per fiber pair, traceable to NIST standards via Panduit's calibration program, providing the documentation required for LEED and TIA-942 data center tier certification. The MPO connectors use male (pin) configuration with key-up orientation, the industry-standard alignment for trunk-to-cassette connections, and feature push-pull boots that remain accessible even when cassettes are installed in dense 1U panels with <5mm vertical clearance between rows.

Deployment context for this cassette centers on three install scenarios: spine-leaf data center fabrics, enterprise building backbone consolidation, and parallel optics migration from 10G to 40G or 100G. In spine-leaf architectures, each cassette serves a single 40G QSFP+ spine uplink (4 fibers) broken out to four 10G SFP+ leaf connections, or a single 100G QSFP28 link (10 fibers, with 2 fibers dark) fanned to ten 10G ports for oversubscribed edge aggregation. The universal polarity support is critical here because spine switches from different vendors (Arista, Cisco, Juniper) may default to opposing polarity conventions, and the FC29N-24-10U adapts without requiring A-to-B crossover trunks or field re-termination. For enterprise backbone consolidation, installers use these cassettes in main distribution areas (MDAs) to break high-fiber-count OSP cables (144F or 288F) into manageable LC patch fields, with each cassette handling one 24-fiber subunit and feeding horizontal patch panels on the same rack. The modular cassette approach simplifies troubleshooting—if a single fiber link fails, the installer swaps the affected cassette in under 60 seconds without powering down the enclosure or disturbing the trunk splice. For parallel-optics migration, the cassette provides a fixed breakout layer: 40G QSFP+ modules (4 fibers per port) connect to four LC ports per cassette, leaving eight LC ports available for future 100G breakout or for mixing 10G and 40G traffic on the same physical infrastructure.

The OptiCom platform's tool-free installation and retention system reduces deployment time and eliminates the risk of dropped screws in active data halls. Each cassette features molded-in guide rails that align with slots in OptiCom 1U or 2U enclosures, and a spring-loaded latch that engages once the cassette is fully seated. Removal requires pulling the integrated release tab, which disengages the latch without applying rotational force to the MPO connectors—preserving end-face geometry over hundreds of insertion cycles. The black polycarbonate housing is UL94 V-0 rated for flame resistance and includes integrated strain relief channels that maintain the 35mm minimum bend radius for OS2 fiber even when trunk cables enter at acute angles, common in overhead ladder rack installations where vertical space is constrained. The twelve LC adapters use ceramic split-sleeve alignment (not polymer), maintaining <0.1µm concentricity tolerance for the 9µm fiber core, and the blue color-coding meets TIA-598 standards for single-mode identification, reducing the risk of accidental MM/SM crossover during mac/move/change work. Installers working under TIA-606-B labeling standards will appreciate the cassette's recessed serial number plate, which accepts adhesive labels without interfering with adjacent module spacing, and the molded port numbering (1-12) that corresponds directly to industry-standard LC numbering for documentation and OTDR testing.

This cassette ships in cartons of 10 units, each individually bagged with MPO and LC dust caps installed, optimized for contractor purchasing on multi-floor or multi-building projects where cassette count scales with backbone trunk count. The 10-pack quantity aligns with common 120-fiber or 240-fiber trunk deployments (10 or 20 cassettes respectively) and reduces per-unit cost for integrators bidding design-build data center contracts. Panduit's OptiCom cassette line is UL listed and RoHS compliant, meeting the procurement requirements for federal and state government projects, and carries Panduit's standard manufacturer warranty covering material and factory-termination defects—critical for installations where cassette failure would require emergency after-hours truck rolls to restore redundant links. For data center and enterprise network installers deploying single-mode backbones with 40G or 100G parallel optics, or consolidating high-fiber-count OSP trunks into serviceable LC patch fields, the FC29N-24-10U delivers field-proven MPO-to-LC breakout with universal polarity and tool-free serviceability that reduces both install time and the risk of polarity-related outages during phased cutovers.