Panduit FDSZA-24-10P 24-Fiber OM4 LC Duplex Cassette

Panduit FDSZA-24-10P FlexCore 24-Fiber OM4 LC Duplex Front-Access Splice Cassette

The Panduit FDSZA-24-10P is a front-access fiber optic splice cassette engineered for high-density optical distribution frame (ODF) and optical splice frame (OSF) deployments. This FlexCore™ module terminates 24 OM4 multimode fibers in 12 LC duplex ports on the front panel, with unterminated pigtails on the rear for field splicing to incoming trunk cables. At 11.7mm tall, the cassette fits standard 1U rack heights while delivering 24-fiber capacity — critical for datacenter operators managing 40GBASE-SR4 or 100GBASE-SR10 parallel optics migrations within constrained vertical space. Ultra-low insertion loss specification ensures margin for long campus backbone runs or multi-tier structured cabling architectures.

Key Features

• 24 OM4 multimode fibers (50µm core) rated for 550m at 10 Gb/s, 150m at 40/100 Gb/s per IEEE 802.3
• 12 LC duplex ports on front panel for plug-and-play connection to active equipment or patch panels
• Unterminated pigtails on rear allow fusion splicing to any trunk cable type (ribbon, loose-tube, tight-buffered)
• Ultra-low insertion loss design maximizes link budget for extended reach or multi-cassette daisy-chain topologies
• Front-access architecture enables maintenance and patching without disturbing rear trunk splices
• Black polycarbonate housing with integrated splice tray and cable management routing
• Fits FlexCore ODF/OSF enclosures and standard 19" rack-mount fiber panels
• Compliant with ISO/IEC 11801, ANSI/TIA-568-C.3, TIA-604-5 (FOCIS-5), TIA-604-10 (FOCIS-10), and RoHS 2002/95/EC

The FDSZA-24-10P addresses a specific problem in modern datacenter and campus fiber builds: you need to land high fiber counts in minimal rack space while preserving the flexibility to splice to any incoming cable type. Pre-terminated MTP/MPO cassettes lock you into 12- or 24-fiber ribbon trunks and tight bend-radius constraints. Breakout cables from MTP harnesses add cost and failure points. The Panduit FlexCore cassette splits the difference — you get LC duplex density on the front (the universal connector for 10G/25G/40G optics) and discrete pigtails on the rear, so your fiber techs can fusion-splice to whatever the campus backbone or building riser delivered. The 11.7mm height means you can stack 72 fibers in a 1U panel (three cassettes) or 288 fibers in 4U, matching the port density of blade switches and modular SAN directors without resorting to MTP breakout kludges.

OM4 is the workhorse multimode grade for 40G/100G datacenter links under 150 meters and 10G links out to 550 meters. The 50µm core and 4700 MHz·km modal bandwidth at 850nm support VCSEL-based parallel optics (SR4, SR10) that dominate spine-leaf fabrics and storage-area networks. When you're installing FlexCore cassettes in a top-of-rack scenario, the front LC ports patch directly to server NICs or switch downlinks; the rear pigtails splice to OM4 backbone running to aggregation switches three floors up. If a port goes bad or you need to reconfigure VLANs, you swap the front patch cord — no ladder, no VOA, no re-splicing. The unterminated pigtail approach also future-proofs against connector evolution: when LC gives way to SN or MDC in five years, you replace the cassette but keep the splice-on trunk infrastructure.

Front-access design is non-negotiable in high-change-rate environments — datacenters running continuous integration pipelines, hospitals deploying incremental PACS upgrades, or corporate campuses where MAC (move/add/change) requests arrive daily. Rear-access cassettes force you to pull the entire enclosure forward on rack rails or cable-manage around a 12-inch service loop every time you need to trace a dark fiber. The FDSZA-24-10P mounts flush; all patching happens from the cold aisle. The internal splice tray secures fusion splices with heat-shrink protectors or mechanical splice clips, and the routing guides maintain the 30mm minimum bend radius for OM4 throughout the cassette body. Polycarbonate construction provides impact resistance during shipping and installation without the weight penalty of metal enclosures — relevant when you're installing 40+ cassettes in a single ODF frame and the cumulative load approaches the maximum rated capacity of your relay rack.

Compliance with TIA-604-5 and TIA-604-10 ensures physical-contact (PC) polish geometry on the factory-installed LC connectors meets the <0.2 dB insertion loss and >-50 dB return loss specified in TIA-568-C.3 for OM4 horizontal and backbone cabling. ISO/IEC 11801 alignment guarantees interoperability with international structured cabling standards used in European and APAC builds. IEEE 802.3 and ANSI T11.2 (Fiber Channel) references confirm the cassette meets timing and attenuation budgets for 10GBASE-SR Ethernet and 16GFC storage fabrics. This cassette is the right choice when your statement of work calls out FlexCore compatibility, you need discrete-pigtail splicing flexibility, and you're targeting Crutchfield-grade build quality in a product line backed by Panduit's global distribution and technical support network.