INFRALAN U-DQ(ZN)BH OM3 12G 1x12 LSZH black optical fiber cable, 7.5 mm

INFRALAN U-DQ(ZN)BH OM3 12G 1x12 LSZH black optical fiber cable is a multimode backbone cable engineered for indoor data center and enterprise network deployments. The cable features 12 multimode OM3 fibres arranged in a single 1x12 zonal construction within a 7.5 mm low-smoke, zero-halogen (LSZH) jacket. It is intended for high-speed links and structured cabling where OM3 performance and reduced smoke/halogen emissions are required.

Advantages

The zonal design groups fibres in a compact, manageable layout that simplifies routing and termination in cabinets and patch panels. OM3 multimode performance supports laser-optimized transmission for high bandwidth applications, enabling 12G and other demanding data rates over short to medium distances. The LSZH outer jacket minimizes smoke and toxic gas emissions in the event of fire, and the 7.5 mm outer diameter balances mechanical protection with flexibility for tight routing paths.

Suitable for

• Data centre horizontal and backbone cabling
• Enterprise network backbone and riser runs
• High-speed multimode links using OM3 transceivers
• Patching between switches, servers and optical distribution frames

When it may not be suitable

This cable is multimode OM3 and is not intended for single-mode long-haul transmission or runs that require single-mode optics. For outdoor duct installations, direct burial, or environments with prolonged UV exposure and moisture, a cable specifically rated for outdoor use or armoured construction is more appropriate. Extremely tight bend installations should be checked against the cable's minimum bend radius.

Key specifications

• Fiber type: Multimode OM3
• Number of fibres: 12 (1x12 zonal construction)
• Outer jacket material: Low-smoke zero-halogen (LSZH)
• Outer diameter: 7.5 mm
• Colour: Black
• Intended use: Indoor backbone and horizontal cabling
• Mechanical load rating: designed for typical installation tensions (check installer guidelines)

How to use

Route the cable through designed cable trays, conduits or racks, observing the recommended minimum bend radius and pull tension. Prepare and terminate fibres using appropriate multimode OM3 connectors and follow standard fibre handling procedures: keep fibre ends clean, use proper polishing or factory-terminated pigtails, and protect terminations with dust caps until final mating. Label both ends to match network documentation and perform insertion loss and return loss tests after installation to verify link performance.

What to consider before purchase

• Compatibility with existing OM3 transceivers and patch panels
• Required cable length and routing path to avoid excessive bends or pulls
• Indoor LSZH requirement for the installation environment
• Connectorisation type and whether pre-terminated or field-terminated ends are needed

Usage recommendations

For reliable 12G and high-speed multimode performance, use factory-terminated OM3 connectors where possible, adhere to manufacturer bend radius and pull tension limits, and perform certified testing (insertion loss/OTDR as applicable) after installation to confirm link quality.