Optical Fiber Fanout Cable for Simplified FTTH Installation
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Solution Overview
Problem
The complexity of connecting optical fibers between provider boxes at a mutualization point and dwellings in FTTH installations leads to errors and increased installation time and cost, as existing technologies do not facilitate the direct connection of optical fibers from provider boxes to dwellings without risk of error.
Innovation Solution
An optical fiber fanout cable with a cable portion and a fanout portion, where optical fibers are rearranged into different groups, allowing for pre-assembled connections at the factory, reducing installation errors and simplifying the process by enabling easy identification and connection of fibers based on color codes and connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical fibers are individually routed from provider boxes to dwellings using traditional riser cables, then each dwelling can receive fibers from multiple providers, but the connection process becomes complex and error-prone requiring significant installation time and care
Solution Approach 1:
The patent applies preliminary action by pre-organizing optical fibers into fanout groups at the factory before installation. Each fanout group contains fibers from different cable groups in a predetermined arrangement that simplifies field installation. This pre-arrangement eliminates the need for complex in-situ sorting and connection work, reducing installation errors and time while maintaining multi-provider connectivity capabilities.
Solution Approach 2:
The patent segments the optical fiber bundle into distinct cable groups and fanout groups. Each cable group contains fibers from a single provider, while each fanout group contains fibers from multiple providers arranged in a simplified configuration. This segmentation allows installers to work with smaller, more manageable units and reduces the complexity of establishing connections between multiple providers and dwellings.
2Adaptability or versatility
If optical fibers are connected in situ at each dwelling, then flexibility in provider selection is maintained, but installation errors occur and require time-consuming corrections
Solution Approach 1:
The patent performs preliminary organization of fibers into fanout groups at the factory with color codes and identifiers assigned in advance. This pre-configuration ensures that each fiber's destination and provider affiliation are clearly marked before installation, eliminating confusion during field work and preventing connection errors while maintaining the ability to connect to different providers.
Solution Approach 2:
The patent uses color codes on fibers and connectors to indicate provider affiliation and fanout group membership. This visual coding system allows installers to quickly identify the correct fibers for connection without complex documentation, reducing errors and improving reliability while maintaining flexibility in provider selection.
3Ease of manufacture
If traditional riser cable methods are used for FTTH installation, then existing infrastructure can be utilized, but installation time and cost increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-assembling fanout groups and organizing fibers into their final configuration at the factory. This eliminates the time-consuming process of sorting and organizing fibers on-site, reducing installation time and labor costs while maintaining the ability to serve multiple providers and dwellings using existing riser cable infrastructure.
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to an optical fibre fanout cable 10 comprising: - a cable portion 14 comprising an outer sheath forming a cavity in which a plurality of cable groups is provided, each cable group in the cable portion comprising a plurality of optical fibres 13; - a fanout portion 15 comprising a first fanout device 11, 12 in which the plurality of optical fibres 13 of the cable groups is arranged in fanout groups, wherein the combination of optical fibres forming a fanout group is different from the combination of optical fibres forming a cable group. The cable allows for simplified installation and product quality that cannot be achieved through on-site production.