INFRALAN OM3 12G U-DQ(ZN)BH 1x12 LSZH black 5.8mm fiber cable

INFRALAN OM3 12G U-DQ(ZN)BH 1x12 LSZH black 5.8mm fiber cable is a riser-rated multimode trunk designed for high-throughput backbone and horizontal links. The cable contains twelve OM3 multimode fibers arranged in a single unit with a compact 5.8 mm outer diameter and a black, low-smoke, halogen-free (LSZH) jacket. Its U-DQ(ZN)BH construction provides mechanical protection and crush resistance suitable for data center interconnects, main distribution frames and modern enterprise LAN environments where controlled flame propagation and low toxic emission are required.

Advantages

The cable offers 12G-class multimode performance on OM3 fibers, combining high bandwidth with a small outer diameter that simplifies routing in congested trays and conduits. The LSZH jacket reduces smoke and hazardous gas output in case of fire, meeting safety requirements for many commercial and public buildings. The U-DQ(ZN)BH design adds tensile and crush strength while maintaining flexible handling during installation.

Suitable for

• Data center interconnects and spine-to-leaf backbone links
• Campus and building backbone cabling in riser shafts and distribution rooms
• High-speed LAN links, server-to-switch and switch-to-switch connections
• Runs requiring low-smoke, halogen-free jackets for safety compliance

When it may not be suitable

This OM3 multimode cable is not intended for long-distance singlemode applications; reach and attenuation differ from singlemode fiber and can limit link lengths for certain high-speed protocols. It may also not be appropriate where armored or outdoor UV-resistant constructions are required, as the U-DQ(ZN)BH variant is optimized for indoor riser and backbone use rather than direct burial or prolonged outdoor exposure.

Key specifications

• Fibre type: OM3 multimode, 12 fibers in a single unit
• Performance class: 12G multimode performance suitable for high-speed LAN/backbone links
• Construction: U-DQ(ZN)BH — loose tube / mechanical protection for indoor use
• Outer diameter: approximately 5.8 mm
• Outer jacket: LSZH (low-smoke, halogen-free), black
• Flame rating: riser indoor application (suitable for vertical shafts and floors)
• Mechanical: designed for tensile and crush resistance during installation

How to use

Route the cable through cable trays, raceways or riser shafts following building codes and fire safety regulations. Prepare fiber ends with appropriate stripping, cleaning and termination tools compatible with multimode OM3 fiber and use connectors and patch panels rated for 12-fiber trunks or MTP/MPO systems if required. Observe recommended bend radii and secure the cable to supports to avoid sharp bends or physical stress. Perform insertion loss and return loss testing after termination and before service activation to verify link performance.

What to consider before purchase

• Confirm required fiber type (OM3 multimode) and whether multimode meets your link distance and protocol needs
• Verify indoor riser (riser-rated) LSZH jacket is acceptable for your building code and environment
• Check connector type and termination method (loose tube to MTP/MPO or individual connectors) for compatibility with existing hardware
• Ensure the 5.8 mm diameter and bundle configuration fit your tray, conduit and panel capacity

Usage recommendations

Maintain the manufacturer’s minimum bend radius during installation, avoid over-tensioning, and perform optical loss testing after termination. For high-density deployments consider pre-terminated trunk assemblies or managed patch panels to simplify moves, adds and changes while preserving OM3 multimode performance.