Optical Connectivity Module Rear Cable Routing for High Port Density
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Solution Overview
Problem
Optical connectivity modules typically require either front-rear access or front access only, leading to reduced port density due to the need for additional space for incoming cables to enter from the front, which complicates installation and maintenance.
Innovation Solution
The design features a module with incoming cables routed internally from the rear to the front through a dedicated channel, allowing full front-access without additional adapters or cable glands, ensuring minimal fiber bending radius and increased port density, enabling easy installation and removal from either side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If incoming cables are routed from the front of the module, then full front access is achieved, but port density is reduced due to additional space requirements for cable glands and adapters
Solution Approach 1:
The patent routes incoming cables through a lateral cable access point and channels them from the side/rear of the module rather than from the front. This dimensional change in cable routing path eliminates the need for front-mounted cable glands, freeing up front panel space for additional port adapters and increasing port density while maintaining full front access capability
2Ease of operation
If additional adapters and cable glands are added to the front plate for incoming cables, then front access is enabled, but device complexity increases
Solution Approach 1:
The patent extracts the cable access function from the front panel by providing a separate lateral cable access point. Incoming cables enter through this side access and are routed through internal channels to the rear, separating the cable management function from the port interface function. This eliminates the need for additional front-mounted cable glands and adapters, simplifying the front panel design while maintaining full front access
3Ease of manufacture
If cable routing space is increased to accommodate incoming cables from the front, then installation flexibility is improved, but manufacturing precision requirements increase to maintain minimal fiber bending radius
Solution Approach 1:
The patent incorporates pre-formed cable channels with built-in curvature radii that are designed to meet minimum fiber bending radius requirements. These channels are molded into the module housing structure, providing predetermined safe routing paths for fibers before installation. This preliminary design of the routing geometry eliminates the need for complex installation procedures while ensuring fiber protection, and allows flexible cable entry from the lateral access point
Data Source
AI summary
An Optical connectivity module (1) suitable for installation in a corresponding chassis. The connectivity module (1) typically comprises a housing (2) defining an interior (3) and comprising a front face (4), wherein at least one row (5) of adapters (6) suitable to receive thereto corresponding optical connectors (7) from the interior (3) and from the exterior, the row of adapters (6) being arranged in the front face (4) spanning essentially across a total width (8) of the front face (4). Usually at least one cable channel (9) leading into the front face (4) above or below the row (5) of adapters (6), for routing therein at least one optical cable (10) across the front face being during operation interconnected to at least one of the adapters (6) of the row of adapters (6) from the interior (3).