High Count Optical Fiber Cable Sub-Unit Segmentation
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Solution Overview
Problem
Current high-density communication networks face challenges in space management and efficiency due to the need to handle multiple standard-sized optical fiber ribbons for interconnections, leading to cumbersome and error-prone processes when connecting large numbers of optical fibers to equipment racks.
Innovation Solution
A high count optical fiber cable is designed with sub-unit components containing a sufficient number of individual fibers, using rollable optical fiber ribbons with water-blocking materials, stranded around a central member, and a flame-retardant outer jacket to create a compact, efficient, and safe cable configuration that matches the fiber capacity of equipment racks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple standard-sized optical fiber ribbons are used to interconnect equipment racks, then the fiber capacity requirement is met, but the space management becomes cumbersome and error-prone
Solution Approach 1:
The optical fiber cable is divided into multiple sub-unit components, each containing a specific number of fibers (e.g., 24 ribbons with 12 fibers each = 288 fibers). This segmentation allows each sub-unit to be independently managed and connected to specific equipment racks, simplifying space management while maintaining high fiber capacity.
Solution Approach 2:
Multiple sub-unit components are combined into a single high-count optical fiber cable assembly. This merging provides the benefits of both high fiber capacity (288 or more fibers) and simplified handling, as the entire assembly can be managed as one unit rather than multiple separate ribbon cables.
2Quantity of substance
If 24 separate ribbons are used to accommodate 288 fibers in a rack, then the fiber capacity requirement is met, but the installation process becomes time-consuming and error-prone
Solution Approach 1:
The cable is segmented into sub-unit components that can be independently handled during installation. Each sub-unit contains organized ribbons that can be systematically connected to equipment, reducing installation complexity compared to managing 24 separate ribbon cables.
Solution Approach 2:
The ribbons are pre-organized and bundled into sub-unit components with water blocking material and protective structures already in place. This preliminary organization eliminates the need for field assembly and reduces installation errors.
3Volume of moving object
If a compact cable design is used to reduce cable size, then space management is improved, but fire safety and environmental protection requirements may be compromised
Solution Approach 1:
The cable incorporates flame-retardant materials in the outer jacket and water-blocking materials within the sub-unit components. These composite materials provide fire safety and environmental protection while maintaining a compact cable design, as the protective materials are integrated into the cable structure rather than adding external bulk.
4Quantity of substance
If multiple separate ribbons are handled individually, then fiber identification is possible, but mistakes in associating proper fiber with proper connection occur
Solution Approach 1:
By organizing fibers into structured sub-unit components with consistent ribbon configurations (e.g., 12 fibers per ribbon), the system provides a systematic approach to fiber identification and connection. This structured segmentation reduces errors compared to handling individual ribbons separately.
Data Source
AI summary
A high count optical fiber cable is formed of a number of sub-unit components stranded around a central tension member. Each sub-unit component is formed to include the total number of individual fibers required to populate a given equipment rack (e.g., 288 fibers, for example). The individual fibers are preferably provided using a plurality of rollable optical fiber ribbons (permitting the large number of individual fibers to be compacted into a relatively small space), with water blocking material included in each sub-unit component. The sub-unit components may be formed to include individual strength members (i.e., in the form of sub-unit cables), or as loose tubes with an outer strength member disposed to surround the sub-units. Each sub-unit component is specifically sized to match the fiber capacity of, for example, a full equipment rack, minimizing the number of physical cables required for high density applications (e.g., data centers).