Panduit FOKRX24 24-Fiber OM3 Indoor/Outdoor Riser Cable

The Panduit FOKRX24 delivers 24 fibers of OM3 50/125μm multimode in a tight-buffered, indoor/outdoor construction engineered for transitional aerial runs, building entrance facilities, and vertical riser shafts where loose-tube cable cannot meet space or flame-rating requirements. Part of Panduit's Opti-Core® family, this riser-rated (OFNR) cable features 900μm buffered fibers and water-blocking technology in a UV-resistant black polyethylene jacket, solving the installation gap between outdoor campus backbone and indoor distribution without requiring splice enclosures at the building entry point.

Key Features

24-fiber OM3 multimode (50/125μm) supports 10GBASE-SR to 300m, 40/100GBASE-SR4 to 100m

Indoor/outdoor tight-buffered design with water-blocking gel eliminates need for transitional splice points

Riser (OFNR) flame rating for vertical cable routing in shafts, plenums, and building risers

900μm buffered fibers enable faster field termination with standard connectors and fusion splicing

Black UV-resistant polyethylene jacket for aerial, duct, and direct-burial transitional applications

Panduit Opti-Core® construction for bend-radius performance and long-term reliability

OM3 fiber supports 10 Gigabit Ethernet (10GBASE-SR) transmission to 300 meters and scales to 40/100G applications at 100 meters, making the FOKRX24 the right backbone choice for security installations running high-bandwidth IP camera networks, NVR-to-switch trunk links, and building-to-building campus interconnects. The tight-buffered construction places each 250μm fiber inside a 900μm protective buffer tube filled with water-blocking gel—unlike loose-tube designs that require breakout kits and splice enclosures, tight-buffered cables terminate directly to LC, SC, or ST connectors in the field using standard fusion splicers or mechanical termination tools. This design cuts installation labor by 30–50% in entrance facilities and eliminates the moisture ingress risk that plagues improperly sealed loose-tube splice points.

The dual indoor/outdoor rating solves a common campus deployment problem: aerial fiber entering a building must transition from outdoor-rated cable (designed for temperature extremes and UV exposure) to riser or plenum-rated cable (meeting NEC flame spread requirements for vertical pathways). Traditional installations splice outdoor loose-tube to indoor tight-buffered at the building entry using weather-sealed enclosures; the FOKRX24's OFNR-rated black PE jacket allows a single continuous run from pole-mount to telecom room, reducing splice points, failure modes, and man-hours. Security integrators running fiber from parking-lot camera clusters to head-end equipment, or IT teams linking remote server closets across a multi-building campus, eliminate one handoff and the associated troubleshooting complexity when a link goes down.

Panduit Opti-Core cables meet TIA-568 performance specifications and ship with standard TIA-598-C color coding for OM3 identification. The riser (OFNR) flame rating complies with NEC Article 770 for vertical cable runs in non-plenum spaces and plenum-to-riser transitions—critical for installations crossing fire-rated floors in commercial facilities where plenum cable is cost-prohibitive for long backbone runs. Water-blocking gel protects against moisture wicking in underground duct banks and aerial spans exposed to condensation, extending cable life in mixed indoor/outdoor environments where a single water intrusion event can destroy an entire fiber run.