Belden Inc. TUSLF004RS2N OS2 4-fiber Optic Cable

Product Description

The BELDEN INC. TUSLF004RS2N is an OS2 single-mode, 4-fiber tight-buffered fiber optic cable designed for structured cabling and data communication installations. It features a tight-buffered construction with an OFCR (optical fiber conductive riser) rating, making it suitable for vertical runs between floors in commercial and industrial buildings. The riser rating meets fire code requirements for plenum-adjacent vertical pathways. This cable is handled and terminated by low-voltage technicians and data network installers working on backbone or horizontal fiber runs.

The TUSLF004RS2N is intended for indoor riser installations where a compact, 4-fiber OS2 cable is required. Its tight-buffered design simplifies field termination and allows direct connector installation without breakout kits. Typical applications include inter-floor backbone links, telecom room patch connections, and LAN infrastructure upgrades in commercial buildings. The OFCR rating qualifies it for installation in riser pathways per applicable fire and building codes.

Key Features

• OS2 single-mode fiber for long-distance, low-loss signal transmission
• 4-fiber count in a tight-buffered construction for simplified field termination
• OFCR (Optical Fiber Conductive Riser) fire rating for vertical riser pathway installations
• Compact multiunit design suited for indoor structured cabling backbone runs
• Sold as individual unit (EA), quantity per unit: 1

Compatibility

Designed as an OEM-style replacement and standard-fit indoor riser fiber optic cable for OS2 single-mode structured cabling systems requiring a 4-fiber tight-buffered configuration.

Installation Notes

Installation should be performed by a qualified low-voltage technician or registered communications distribution designer (RCDD) in accordance with ANSI/TIA-568 and applicable local building codes. De-energize any adjacent electrical systems and follow building fire-stop procedures when routing through floor penetrations. Tight-buffered fibers may be directly terminated with field-installable connectors, but proper cleaving tools and an optical loss test set should be used to verify insertion loss after termination. Do not exceed the cable minimum bend radius during pulling or routing.