Adhesive-Backed Cable Routing for Low-Profile MDU Final Drops
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Solution Overview
Problem
Connecting multiple dwelling units (MDUs) to FTTX networks is challenging due to difficulties in gaining building access, limited distribution space, and managing cable routing and security issues, leading to increased costs and service disruptions.
Innovation Solution
A cable routing system with a point-of-entry unit and adhesive-backed ducts that provide anchor points for communication lines within living units, using low-profile designs and adhesive backing for secure and efficient cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional FDT enclosures are installed on each floor with individual drop cables spliced to riser cables, then service can be provided to individual living units, but multiple reentries to the enclosure are required which compromises security and disrupts service to other tenants
Solution Approach 1:
The system segments the cabling infrastructure by providing dedicated horizontal pathways (ducts) for each living unit, separating the drop cable routing from the central FDT enclosure. This allows individual cable management without requiring access to the main enclosure, thus maintaining security and service continuity for other tenants.
Solution Approach 2:
The horizontal ducts and cable pathways are pre-installed during building construction before tenants move in. This preliminary action eliminates the need for later reentries to the FDT enclosure for cable installation, as all routing infrastructure is already in place and ready for immediate cable deployment.
2Device complexity
If home run cabling is installed from each living unit directly to the fiber distribution hub, then both horizontal and riser cabling are encompassed in a single extended drop cable, but large pre-fabricated crown molding pathways are required which become congested and disorganized over time
Solution Approach 1:
Instead of using large, generic crown molding pathways for all cabling, the system implements localized, unit-specific horizontal ducts with dimensions optimized for individual cable runs. Each duct is sized appropriately for its specific routing needs, preventing congestion and allowing for easier identification and management of individual living unit cables.
Solution Approach 2:
The cabling system is segmented into individual horizontal ducts for each living unit rather than using a single large pathway. This segmentation allows each duct to remain organized and uncluttered, making cable management and maintenance significantly easier compared to the congested crown molding approach.
3Shape
If indoor optical network terminals are placed in closets out of normal view, then aesthetic concerns are addressed, but additional cabling must be run from the closet to existing wiring to activate the ONT
Solution Approach 1:
The system utilizes the vertical dimension by running horizontal ducts along walls and ceilings to bring cable access points directly to living areas where ONTs can be placed. This dimensional approach eliminates the need for closets as intermediaries, allowing ONTs to be positioned in main living areas while maintaining aesthetic appeal through concealed ductwork.
4Shape
If adhesive-backed ducts with low-profile designs are used for cable routing within living units, then visual impact is minimized and installation time is reduced, but the ducts must provide secure anchoring without mechanical fasteners
Solution Approach 1:
The system replaces traditional mechanical fastening systems (screws, nails, clips) with adhesive bonding for duct attachment. This substitution maintains the low-profile aesthetic appearance by eliminating visible fasteners while providing secure anchoring through high-strength adhesive formulations designed for the duct materials and surface types.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system minimizes visual impact, reduces installation time, and enhances security by providing a structured and aesthetic cable management solution, lowering operational costs and service disruptions.
Implementation Method 1
an adhesive-backed duct, having one or more communication lines disposed therein, mountable to a wall within the living unit
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3C
AI summary
A system and method for providing a final drop in a living unit in a building. The system comprises a point-of-entry unit, such as a low profile base unit, disposed within the living unit at a location corresponding to an access position of horizontal cabling disposed in a hallway of the building that provides a first anchor point. The system also includes an adhesive-backed duct, having one or more communication lines disposed therein, mountable to a wall within the living unit. The system also includes a second anchor point, such as a wall receptacle, disposed within the living unit to receive a first communication line via the duct. The components of the system are also designed with very low impact profiles for better aesthetics within the living unit.