Telecommunications Test Plugs with Tuned Near End Crosstalk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Manufacturers face challenges in efficiently producing test plugs with specific near-end crosstalk (NEXT) values for Category 5e and Category 6 telecommunications standards, requiring numerous test plugs and being time-consuming due to variability in wire arrangement and untwisting, which complicates meeting performance requirements.
Innovation Solution
The use of printed circuit boards with primary and secondary circuit traces in telecommunications test plugs to establish predefined near-end crosstalk levels between pairs, allowing for adjustment of trace positions and dimensions to achieve desired NEXT values, reducing variability and the number of test plugs needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional wire termination methods are used with manual untwisting and arrangement, then flexibility in wire routing is achieved, but variability in NEXT values increases and manufacturing precision deteriorates
Solution Approach 1:
The patent replaces the mechanical wire arrangement system with an electrical circuit trace system on a PCB. The circuit traces are pre-configured to establish specific NEXT values between wire pairs, eliminating the need for manual wire untwisting and arrangement. This substitution provides both routing flexibility through the PCB layout and precise control over NEXT values through the designed trace geometry and positioning.
2Adaptability or versatility
If multiple test plugs are produced to cover different NEXT value ranges for Category 5e and 6 standards, then comprehensive testing capability is achieved, but device complexity and quantity requirements increase
Solution Approach 1:
The patent creates a universal test plug design where the PCB circuit traces can be configured to provide different NEXT values. By modifying the trace geometry, position, and configuration on the PCB, a single test plug design can serve multiple testing purposes across different categories (5e, 6) and standards (TIA, IEC), eliminating the need for maintaining separate test plugs for each specification.
Solution Approach 2:
The patent utilizes parameter changes in the circuit trace design (trace width, spacing, length, position) to adjust the NEXT values. By varying these geometric parameters, the same test plug structure can produce different NEXT characteristics to meet different category requirements, reducing the total number of unique test plug designs needed.
3Reliability
If numerous different test plugs are manufactured to establish NEXT values for both Category 5e and 6, then complete standard coverage is achieved, but production time and manufacturing complexity increase
Solution Approach 1:
The patent segments the NEXT value control function into separate PCB circuit trace configurations. Each trace design can be independently optimized to provide specific NEXT characteristics, allowing systematic production of test plugs for different categories. This segmentation enables standardized manufacturing processes while maintaining the ability to produce various NEXT values through trace design variations.
Data Source
AI summary
A set of telecommunications test plugs. A first test plug has a first test plug printed circuit board having circuit traces for establishing first predefined near end crosstalk between at least two of pairs of wires. The first predefined near end crosstalk is at a first level of a first defined range. A second telecommunications plug has a second printed circuit board having circuit traces for establishing a second predetermined level of near-end crosstalk. The circuit traces are positioned to establish second predefined near end crosstalk between at least two of pairs of wires. The second predefined near end crosstalk is at a second level of a second defined range.