Integrated Fiber Distribution Box for Air-Blown Cable Installation

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Solution Overview

Problem

Conventional optical cable laying methods require separate deployment and mounting of air-blown optical cables and fiber distribution boxes, leading to complex and costly construction processes with high risks of foreign object invasion and lengthy construction durations due to multiple right of way applications.

Innovation Solution

An integrated optical cable connection module that combines a fiber distribution box with an air-blown cable, allowing for simultaneous connection and splicing during construction, reducing on-site operations and enabling quick connection to user-side cables by compartmentalizing the connection process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If air-blown optical cable and fiber distribution box are deployed separately, then deployment flexibility is maintained, but construction complexity increases and construction duration extends

Engineering Contradiction:
Improvedeployment flexibilityVSAvoidconstruction complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the air-blown optical cable and fiber distribution box into an integrated optical cable connection module. The cable access assembly is embedded within the housing of the fiber distribution box, eliminating the need for separate deployment and on-site splicing operations. This integration resolves the contradiction by maintaining deployment flexibility while significantly reducing construction complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If separate mounting and splicing operations are performed, then connection reliability is ensured, but construction cost increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidconstruction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The optical cable connection module is pre-assembled in the factory with the cable access assembly already integrated into the fiber distribution box housing. This preliminary assembly eliminates the need for on-site splicing and distribution operations, reducing construction costs while maintaining connection reliability through controlled factory assembly conditions.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If multiple right of way applications are required, then proper routing permissions are obtained, but construction duration extends

Engineering Contradiction:
Improverouting complianceVSAvoidconstruction duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By integrating the cable access assembly and fiber distribution box into a single modular unit that can be deployed together, the patent reduces the number of separate construction phases and right of way applications needed. The unified deployment approach maintains routing compliance while significantly shortening the overall construction duration.

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If on-site splicing and distribution operations are performed, then connection precision is achieved, but construction difficulty increases

Engineering Contradiction:
Improveconnection precisionVSAvoidconstruction difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The cable access assembly is pre-configured and pre-assembled in the factory with precise connections already established. This preliminary action transfers the precision requirements from the complex on-site environment to the controlled factory setting, where precision can be more easily achieved. The pre-assembled module is then simply installed as a complete unit, dramatically reducing construction difficulty.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4692881A1Optical cable connecting module, optical drop cable module, and optical cable connecting apparatus
Publication Date: 2026.02.11 HUAWEI TECH CO LTD
  • EP4692881A1 patent drawingFigure 1~2b
  • EP4692881A1 patent drawingFigure 3~4
  • EP4692881A1 patent drawingFigure 5a~5b

AI summary

An optical cable connection module (10), a drop cable module (20), and an optical cable connection apparatus are provided. The optical cable connection module (10) includes a fiber distribution box (1) and an air-blown cable (2). The fiber distribution box (1) includes a housing (11) and a connection assembly (12). The connection assembly (12) is fastened to the housing (11) and is exposed from the housing (11). The connection assembly (12) may be configured to connect to a user-side optical cable. One end of the air-blown cable (2) is in the housing (11) and is connected to the connection assembly (12), and the other end of the air-blown cable (2) extends out of the housing (11) to connect to a fiber distribution terminal (01). The optical cable connection module (10) integrates the air-blown cable (2) and the fiber distribution box (1), so that fiber splicing and distribution processes on the air-blown cable (2) and the fiber distribution box (1) are not required, thereby simplifying a process, shortening construction duration, and reducing construction costs.