Sumitomo 3456 Fiber Count Ultra-High-Density Ribbon Cable

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Revolutionary ultra-high-fiber-count ribbon cable by Sumitomo Electric with up to 3456 fibers in a compact 34mm diameter. Features pliable 12-fiber ribbon technology for non-preferential bending, no gel-filled design for cleaner installation, and mass fusion splice compatibility. Available in 864, 1152, 1728, and 3456 fiber counts. Ideal for high-density data center applications requiring maximum space efficiency.

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Overview

The 3456 Fiber Count Ribbon Cable is an ultra-high-density optical fiber cable developed to meet the growing demand for high fiber capacity in modern data centers and backbone networks. Utilizing pliable 12-fiber ribbon technology, this cable achieves exceptional fiber density while maintaining a compact outer diameter and excellent handling performance.

Its advanced structure allows flexible bending in any direction, supports fast mass fusion splicing, and eliminates gel handling during installation, making it ideal for large-scale deployments where space efficiency, speed, and reliability are critical.

Key Advantages

  • Ultra-High Fiber Density
    Supports up to 3456 fibers in a compact cable design, maximizing duct and rack utilization.
  • Small Outer Diameter
    3456-fiber configuration achieves an outer diameter of approximately 34 mm, enabling installation in limited duct spaces.
  • Pliable 12-Fiber Ribbon Technology
    Flexible ribbon structure improves fiber packing efficiency compared to conventional flat ribbons.
  • Non-Preferential Bend Direction
    Central strength member design allows bending in any direction, simplifying routing and installation.
  • Dry Cable Design (No Gel)
    Eliminates gel cleaning, reduces installation time, and keeps fibers clean during splicing.
  • Mass Fusion Splicing Compatible
    Fully compatible with conventional 12-fiber ribbon fusion splicers for high-speed termination.
  • Clear Ribbon Identification
    Barcode-style ribbon marking system enables fast and accurate fiber identification.

Cable Construction

  • Rip cord
  • 12-fiber pliable ribbon fibers
  • Slotted core structure
  • Central strength member
  • Water-blocking tape
  • Outer sheath (approx. Ø 34 mm)

Technical Specifications

Optical Fiber Type

  • PureAccess®-PB Bend Insensitive Fiber (ITU-T G.657 A1)

Available Fiber Counts

  • 864 / 1152 / 1728 / 3456 fibers

Cable Diameter

  • 864 fibers: approx. 21 mm
  • 1152 fibers: approx. 25 mm
  • 1728 fibers: approx. 26 mm
  • 3456 fibers: approx. 34 mm

Cable Weight

  • 3456 fibers: approx. 800 kg/km

Strength Member

  • 7/1.4 mm

Maximum Tensile Load

  • Up to 2,700 N

Minimum Bending Radius

  • After installation: 340 mm (3456 fibers)
  • During installation: 680 mm (3456 fibers)

Installation & Application

  • Designed for data centers, backbone networks, and high-capacity infrastructure
  • Suitable for underground and aerial installation
  • Optimized for ducts and sub-ducts with limited space
  • Ideal for large-scale fiber rollouts requiring fast splicing and clean handling

Compatible Accessories

Optical Closure (GI-TN Series)

  • Compact, high-capacity closure for 12-fiber ribbon cables
  • Supports straight, branch, and mid-span joints
  • Re-usable sealing system
  • Up to 288 ribbon splices (3456 fibers) with pliable ribbon
  • IP68 rated
  • Operating temperature: -20°C to +60°C
Fiber count

864, 1152, 1728, 3456