Optical Fiber Cable Inlet Device with Sealed Housing
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Solution Overview
Problem
Existing telecommunications systems face challenges in providing a reliable and easy-to-install solution for connecting optical fiber cables to telecommunications enclosures, especially in harsh environmental conditions, where conventional connectors require specific mating receptacles and make cleaning difficult.
Innovation Solution
The development of an inlet device with a unibody housing that includes a strength member securing section, fiber guide device, and strain relief members, allowing for secure fastening and protection of optical fibers, and accommodating both single and multi-fiber cables, along with a method for preparing and assembling optical fiber cable assemblies, including a kit of parts for field assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional connectors are used for optical fiber connections, then optical connection can be made proximate to the wall of terminal closure, but service interruptions occur when subjected to harsh environmental conditions
Solution Approach 1:
The patent introduces a sealed connector housing as an intermediary protective structure between the optical connector and the harsh external environment. This housing encapsulates the connector components, creating a controlled internal environment that shields against moisture, dust, and other environmental factors while still allowing the optical connection to be made proximate to the wall of the terminal closure.
2Reliability
If sealed hardened optical connectors are deployed, then protection from environmental conditions is improved, but cleaning of the optical interface becomes difficult
Solution Approach 1:
The patent segments the connector into distinct functional zones: a sealed protective housing for environmental protection, and an accessible optical interface section for cleaning and maintenance. The housing includes openings or access points that allow technicians to reach the optical interface for cleaning without compromising the sealed protective structure, thus maintaining both protection and ease of maintenance.
3Adaptability or versatility
If specific mating receptacle is mounted in the wall of closure for connector solution, then optical connection is enabled, but device complexity increases
Solution Approach 1:
The patent designs the connector housing to serve multiple functions: it provides environmental sealing, structural support for the optical connector, mounting attachment to the terminal closure wall, and interface for the optical cable. By integrating these functions into a single component, the need for separate mating receptacles and mounting structures in the closure wall is eliminated, reducing overall device complexity while maintaining adaptability.
Data Source
AI summary
An inlet device is described for inserting a cable containing optical fibers into a telecommunications enclosure. The inlet device includes a housing with a strength member securing section configured to fasten at least one strength member to the housing. The inlet device further includes a fiber guide device. The inlet device may be used in a single fiber optical cable assembly or multi-fiber optical cable assembly. A method for preparing a cable assembly is also described. A telecommunications enclosure including an inlet device is also described.