Drop Cable Fracture Protection via Segmented Connectors
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Solution Overview
Problem
Existing drop cables in optical fiber access networks fail to reliably fracture under accidental tensile forces, leading to potential damage to upstream devices and infrastructure.
Innovation Solution
The drop cable is divided into two optical cable sections connected via a pre-connection terminator, allowing for easy fracture at the joint when subjected to tension, with a retainer and optical cable armor clamp ensuring secure connection and fracture at a predetermined force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drop cable uses a continuous structure with brittle fracturing function, then the cable can provide protection to upstream devices, but the cable fails to reliably fracture under accidental tensile forces
Solution Approach 1:
The drop cable is divided into a first cable section and a second cable section that are connectable and disconnectable. The first cable section includes a first connector and the second cable section includes a second connector, allowing the cable to be segmented into modular units that can be easily connected and disconnected to achieve reliable fracture protection.
Solution Approach 2:
The invention changes the structural parameters of the cable by introducing connectors with specific tensile force characteristics. The connectors are designed to disconnect when subjected to tensile force greater than a predetermined value, changing the cable's response to tensile stress from continuous to controlled discontinuous.
2Object-affected harmful factors
If the drop cable is designed to brittlely fracture under tensile force, then protection is provided to upstream devices, but the fracture reliability is insufficient when the cable is subjected to large tensile forces
Solution Approach 1:
The cable is pre-configured with connectors designed to disconnect at a predetermined tensile force threshold. This preliminary design ensures that when accidental tensile force occurs, the cable will reliably fracture at the connector junction, protecting upstream devices without requiring complex additional mechanisms.
Data Source
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AI summary
This application provides a drop cable connection apparatus and a drop cable connection system. A drop cable is divided into a first optical cable section and a second optical cable section that are connected to each other, one end of the first optical cable section is configured to be connected to a pre-connection terminator, the other end of the first optical cable section is in a signal connection to one end of the second optical cable section, and the other end of the second optical cable section is configured to be connected to a drop device. When the drop cable is subjected to accidental pulling or the like, a fracture easily occurs at a joint of the first optical cable section and the second optical cable section, to protect an upstream device such as a pre-connection terminator. Therefore, this application ensures high protection.