Belden Inc. FD3D072FK OM3 Fiber Distribution Cable

Product Description

The BELDEN INC. FD3D072FK is an OM3 multimode fiber optic distribution cable rated for indoor riser (OFCR) and armored indoor (OFCRIA) applications. With 72 fibers in a tight-buffered construction, this cable is built for high-density backbone and distribution runs in commercial and industrial buildings. It supports high-bandwidth data transmission over multimode optical paths and is suited for structured cabling installations where plenum or riser fire ratings are required. Licensed low-voltage and fiber optic contractors typically specify and install this cable in telecommunications rooms, data centers, and campus backbone risers.

This cable is designed for indoor riser installations where a 72-fiber count OM3 multimode solution is needed. The OFCRIA designation indicates the cable meets both riser fire rating requirements and includes armoring suitable for additional mechanical protection in vertical runs and conduit pathways. It is commonly used in enterprise network backbone segments, data center interconnects, and multi-floor distribution frames in commercial construction projects.

Key Features

• 72-fiber count supports high-density distribution and backbone cabling in a single cable run
• OM3 multimode fiber supports 10 Gigabit Ethernet and higher-speed applications over appropriate distances
• OFCR riser fire rating meets NEC requirements for vertical riser installations
• OFCRIA armored construction provides mechanical protection against crushing and rodent damage in conduit or exposed runs
• Tight-buffered design simplifies termination and splicing during installation
• Indoor-rated construction suitable for telecommunications rooms, equipment rooms, and riser pathways

Compatibility

Designed for use in indoor riser and armored indoor fiber optic distribution systems requiring OM3 multimode 72-fiber cable assemblies and termination hardware compatible with standard tight-buffered fiber construction.

Installation Notes

Installation should be performed by a licensed low-voltage or fiber optic contractor familiar with NEC Article 770 requirements for optical fiber cables. De-energize any active equipment connected to the fiber pathway before pulling or terminating this cable. Observe minimum bend radius specifications for the cable during pulls to avoid microbending losses. Use proper fiber optic termination tools and inspect all terminations with an optical power meter before commissioning the link.