Belden Inc. TFSLG012RN5N OS2 12-fiber Pvc Ofnr Riser Cable

Product Description

The BELDEN INC. TFSLG012RN5N is a tight-buffered, single-mode OS2 fiber optic cable rated for riser (OFNR) installations. It houses 12 individual fibers in a PVC jacket, making it suitable for backbone and inter-floor runs in commercial and industrial buildings. Single-mode OS2 construction supports long-distance, high-bandwidth signal transmission with low attenuation. The tight-buffered design protects individual fibers during handling and termination, which simplifies field installation compared to loose-tube alternatives. Licensed cabling technicians and low-voltage contractors are the typical installers for this type of cable.

This cable is intended for indoor riser pathways — vertical runs between floors inside a building where an OFNR fire rating is required by code. It is well suited for structured cabling backbones in office buildings, data centers, educational facilities, and other multi-story commercial environments. The OS2 single-mode specification accommodates connections to switches, patch panels, and transceivers that require single-mode fiber infrastructure.

Key Features

• OS2 single-mode fiber for long-distance, low-loss transmission
• 12-fiber count in a multi-fiber tight-buffered construction
• PVC outer jacket rated OFNR for indoor riser installations
• Tight-buffered design simplifies field termination and connectorization
• Sold as individual unit (each)

Compatibility

Designed as an OEM-style riser fiber optic cable for indoor structured cabling systems requiring OS2 single-mode, 12-fiber, OFNR-rated infrastructure.

Installation Notes

Installation should be performed by a licensed low-voltage or structured cabling technician in accordance with TIA-568 and applicable local building codes. De-energize any adjacent electrical systems before routing cable through shared pathways. Observe the cable minimum bend radius during pulling and routing to avoid microbending losses. OFNR-rated cable is approved for riser use only — do not substitute for plenum-rated (OFNP) applications where plenum rating is required by code.