Optical Cross-Connect Box Direct Fusion Disk

An Optical Cross-Connect Box with Direct Fusion Disk is a fiber management cabinet that enables efficient splicing, distribution, and routing of optical fibers with minimal loss and high protection.

Overview

An Optical Cross-Connect (OCC) Box, also called an Optical Distribution Cabinet (ODC) or Fiber Distribution Terminal (FDT), is designed for indoor or outdoor fiber optic cable management. It serves as a central hub for connecting, splicing, and distributing optical fibers between backbone and access networks, supporting applications such as FTTH, LAN, WAN, and FTTP networks .

Direct Fusion Disk Feature

The direct fusion disk is an integrated splicing area within the cabinet that allows direct fusion splicing of optical fibers without requiring additional intermediate splicing units. This reduces optical loss by approximately 0.5–1 dB and simplifies installation and maintenance . The disk typically accommodates both ribbon and non-ribbon cables and provides storage for excess fiber, ensuring proper bending radius and preventing fiber damage .

Key Components

• Integrated Splicing Unit: Holds fusion splices securely and organizes fibers.
• PLC Splitter Holder: Supports plug-and-play splitters for network branching.
• Cable Fixation Area: Secures incoming and outgoing cables to prevent strain.
• Cable Routing Table: Guides fibers to maintain proper bend radius (≥40 mm).
• Lockable Enclosure: Ensures security and environmental protection.
• Modular Adapter Slots: Supports FC, SC, or hybrid connectors for flexible connectivity .

Materials and Protection

These cabinets are typically made from high-strength SMC (Sheet Molding Compound) or stainless steel, providing waterproof, dustproof, corrosion-resistant, and aging-resistant properties. Most models achieve IP65 protection, making them suitable for harsh outdoor environments . They can be wall-mounted, pole-mounted, or ground-mounted depending on deployment needs.

Advantages

• Reduced Optical Loss: Direct fusion splicing minimizes signal attenuation.
• Efficient Fiber Management: Organized routing and storage prevent fiber damage.
• High Capacity: Available in 96, 144, 288, 576, or 1152 cores to support large networks.
• Modular and Customizable: Supports hybrid patch cords, splitters, and adapters for flexible network design.
• Durable and Weather-Resistant: Suitable for both indoor and outdoor installations .

Applications

• FTTH Networks: Directly connects backbone fibers to subscriber lines.
• LAN/WAN Infrastructure: Centralized fiber management for enterprise networks.
• Outdoor Distribution: Protects fibers in street cabinets or pad-mounted installations.
• High-Density Data Centers: Supports cross-connect cabling and high-density patching . In summary, an Optical Cross-Connect Box with Direct Fusion Disk provides a robust, high-capacity, and low-loss solution for fiber optic network deployment, combining efficient splicing, secure storage, and flexible connectivity in a durable, weather-resistant enclosure.