Belden Inc. DIW12 7321000 Cat3 Backbone Cable 12 Pair

Product Description

The BELDEN INC. DIW12 7321000 is a Category 3 unshielded backbone cable designed for structured cabling installations in commercial and light-industrial buildings. Built in a 12-pair U/UTP configuration, it supports voice and low-speed data transmission across horizontal and vertical backbone runs. The plenum-rated jacket meets fire safety requirements for installation in air-handling spaces, making it suitable for above-ceiling and raised-floor plenum environments. Licensed low-voltage cabling technicians and structured cabling installers are the primary trade for this product.

This cable is used in backbone cabling segments within commercial telephone and data distribution systems. Typical applications include riser and plenum runs connecting telecommunications rooms, equipment rooms, and work area closets. The 12-pair count supports multiple analog voice circuits or legacy data links within a single cable run, reducing conduit fill and simplifying termination at patch panels and cross-connect blocks.

Key Features

• Category 3 rated for voice and low-speed data transmission
• 12-pair U/UTP construction for backbone cabling runs
• Plenum-rated jacket suitable for air-handling space installation
• Unshielded design simplifies termination at punchdown blocks and patch panels
• Sold individually per unit of measure

Compatibility

Designed as an OEM-style backbone cable for Category 3 structured cabling systems requiring plenum-rated 12-pair cable in commercial telecommunications infrastructure.

Installation Notes

Installation should be performed by a licensed low-voltage cabling technician in accordance with ANSI/TIA-568 structured cabling standards and applicable local codes. De-energize all connected equipment before terminating pairs at punchdown blocks or patch panels. Maintain minimum bend radius during pulling to avoid damaging pair twist and cable geometry. Plenum installations must comply with NFPA 90A requirements for air-handling space wiring.