Single-Pair Connector Keying for Secure Network Segregation
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Solution Overview
Problem
Existing connectors for single twisted pairs of conductors lack sufficient security features to segregate and secure data and power transmission, particularly in sensitive applications like military or government networks, where secure data transfer is crucial.
Innovation Solution
A keying scheme for single pair connectors that includes three keying features extending beyond a standardized perimeter, providing at least seven different keying patterns, enhanced by color coding, is implemented in both free and fixed connectors and couplers to ensure secure data and power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standardized connector design is used for single twisted pairs, then ease of manufacture and device compatibility are improved, but security features to prevent unauthorized access are insufficient
Solution Approach 1:
The patent applies asymmetry by introducing keying extensions that protrude from the standardized forward face perimeter of the connector housing. These extensions create asymmetric geometric features that prevent unauthorized connectors from mating, while the base connector design remains standardized for manufacturing efficiency. The keying extensions are positioned at specific locations (front, side, rear) to create unique mating geometries without redesigning the entire connector structure.
Solution Approach 2:
The connector security feature is segmented from the main connector body. The keying extensions are distinct geometric features added to the housing that can be independently defined and manufactured. This segmentation allows the base connector to remain simple and standardized while the security features are added as separate geometric elements, resolving the contradiction between simplicity and security.
2Reliability
If keying extensions are added to the connector to provide security features, then security against unauthorized access is improved, but the connector geometry becomes more complex
Solution Approach 1:
The keying extensions create asymmetric geometric features on the connector housing. By positioning extensions at specific locations (front, side, rear) with defined dimensions, the patent creates unique mating geometries that prevent unauthorized access. The asymmetry is achieved through selective placement and dimensional variation of extensions rather than complex overall shape redesign.
Solution Approach 2:
The patent addresses geometric complexity by defining keying extensions in three-dimensional space with specific dimensional constraints. The extensions protrude from the forward face perimeter in controlled directions (front, side, rear) with defined lengths and positions. This dimensional approach allows security features to be added without requiring complex two-dimensional shape modifications, as the extensions are defined by their spatial coordinates and dimensions rather than complex contour geometry.
Data Source
AI summary
A keying scheme for single pair connectors provides the functionality needed to provide an institution with a level of security for private networks. The keying scheme relies upon three keying features to create at least seven different keying patterns, whose uniqueness can be additionally enhanced through color coding. The keying schemes for a single pair free connector include extensions that extend beyond a standardized forward face perimeter. Corresponding keying schemes are provided in mating receptacle connectors and couplers.