Corning FREEDM® OM3 12F U-DQ(ZN)BH LSZH/FRNC Fiber Optic Cable

The Corning FREEDM® OM3 12F fiber optic cable is designed for high-performance indoor and outdoor optical network installations. Featuring a compact central tube construction and advanced ClearCurve® OM3 multimode fibers, the cable delivers reliable high-speed data transmission while offering excellent resistance to environmental and mechanical stresses. It is ideal for campus backbones, enterprise networks, data centers, industrial facilities, and building-to-building connections.  

The cable utilizes a fully dielectric design, eliminating the need for grounding or bonding. A gel-filled central buffer tube protects the optical fibers from moisture ingress, while laminated glass yarn strength members provide enhanced tensile strength and improved rodent resistance. The low-smoke, zero-halogen (LSZH/FRNC) outer jacket ensures superior fire safety and compliance with modern building standards.  

Key Features

• Suitable for both indoor and outdoor installations.  
• 12-core multimode ClearCurve® OM3 optical fibers. 
• Fully dielectric construction with no metallic components.
• Gel-filled central tube for enhanced moisture protection.
• UV-resistant and microbe-resistant design. 
• Improved rodent resistance through glass yarn armoring. 
• LSZH/FRNC flame-retardant outer jacket. 
• Small diameter and excellent flexibility for easy installation in space-constrained environments. 

Technical Specifications

Optical Performance

Standards and Compliance

• EN 50575 Fire Classification: Dca-s1a,d0,a1. 
• IEC 60332 flame-retardant compliant. 
• Low smoke according to IEC 61034. 
• Zero halogen according to IEC 60754-1. 
• Non-corrosive according to IEC 60754-2. 
• RoHS compliant.

Applications

• Data centers and server rooms. 
• Campus and enterprise backbone networks. 
• Industrial communication systems. 
• Building-to-building fiber links. 
• Duct and conduit installations.
• High-speed Gigabit and 10 Gigabit Ethernet networks.

Corning FREEDM® OM3 12F is a versatile, high-performance fiber optic cable that combines compact design, excellent mechanical protection, superior fire safety, and reliable multimode transmission, making it an ideal solution for modern optical infrastructure projects. [