Belden Inc. TFSLG144RS5N 144-fiber OS2 Riser Pvc Cable

Product Description

The BELDEN INC. TFSLG144RS5N is a tight-buffered, 144-fiber OS2 singlemode indoor fiber optic cable with a PVC jacket rated for riser (OFCR) installation. OS2 singlemode fiber supports long-distance, high-bandwidth data transmission with very low signal loss, making it well suited for backbone runs between floors and equipment rooms. The tight-buffered construction protects individual fibers from moisture and physical stress, and the riser rating meets fire-code requirements for vertical cable runs inside building shafts and risers. This cable is installed by licensed low-voltage contractors, network infrastructure technicians, and structured-cabling specialists.

The TFSLG144RS5N is designed for indoor backbone applications in commercial and institutional buildings where high fiber counts are required in a single conduit run. Typical installations include main distribution frames to intermediate distribution frames, equipment room interconnects, and campus riser pathways. The 144-fiber count supports dense port configurations in high-demand data center, enterprise LAN, and telecommunications room environments. It is suited for premises cabling projects that require singlemode performance under NEC Article 770 riser-rated cable guidelines.

Key Features

• OS2 singlemode fiber for long-distance, low-loss transmission
• 144-fiber count supports high-density backbone deployments
• Tight-buffered design provides added mechanical protection per individual fiber
• PVC jacket with OFCR riser rating meets NEC Article 770 requirements for vertical runs
• Indoor-rated construction suitable for conduit, cable tray, and riser shaft installations

Compatibility

Designed as an OEM-style tight-buffered singlemode fiber optic cable for use in indoor riser backbone cabling systems requiring OS2 performance and a 144-fiber count.

Installation Notes

Installation should be performed by a qualified low-voltage or structured-cabling contractor in accordance with NEC Article 770 and applicable local codes. De-energize and isolate active network equipment before terminating or splicing fibers. Observe the cable manufacturer's minimum bend radius and maximum tensile load ratings during pulling to avoid microbending losses. Fiber end-faces must be properly cleaved and polished or use pre-terminated assemblies to ensure acceptable insertion loss at connectors.