Belden Inc. TU1LF004R22N OM1 4-fiber Riser Cable

Product Description

The BELDEN INC. TU1LF004R22N is a tight-buffered multimode OM1 fiber optic cable designed for indoor riser installations. It features a 4-fiber configuration with a CPE-grade outer jacket and an OFNR (Optical Fiber Nonconductive Riser) fire rating, making it compliant for use in building riser pathways between floors. This cable is typically installed by licensed low-voltage technicians, datacom contractors, and communications cabling professionals in commercial and light industrial environments where structured cabling systems require reliable optical interconnects.

This cable is suited for indoor vertical runs in riser-rated conduit or open pathways where NEC Article 770 OFNR compliance is required. The OM1 multimode fiber classification supports legacy 62.5-micron multimode applications including Fast Ethernet and Gigabit Ethernet over shorter runs. It is appropriate for backbone cabling segments in office buildings, data closet interconnects, and campus riser infrastructure where tight-buffered construction simplifies termination and fiber management.

Key Features

• OM1 multimode fiber type supports 62.5-micron core legacy and active multimode applications
• 4-fiber tight-buffered construction simplifies field termination and splicing
• OFNR-rated jacket meets NEC Article 770 requirements for riser installations
• CPE-grade outer jacket provides durability in indoor vertical pathways
• Indoor-rated design for structured cabling backbone and riser segments

Compatibility

Designed as an OEM-style replacement or direct-install fiber optic cable for indoor riser applications requiring OFNR-rated OM1 multimode 4-fiber construction.

Installation Notes

Installation should be performed by a qualified low-voltage or datacom cabling technician in accordance with NEC Article 770 and applicable local codes. De-energize any active equipment connected to the fiber pathway before terminating or splicing. Observe the cable minimum bend radius during pulling and routing to avoid microbend-induced signal loss. Do not exceed the rated tensile load during installation pulls in vertical riser runs.