Visual Interface Indicators for WDM Optical Nodes
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Solution Overview
Problem
In WDM optical communication nodes, there is a lack of visual indication of connections between uni-wavelength and multi-wavelength ports, leading to confusion and unintended disruptions during maintenance periods.
Innovation Solution
A method and apparatus that use multi-color light sources or alphanumeric displays as interface indicators to visually indicate connections between uni-wavelength and multi-wavelength interfaces, allowing for clear representation of interface states and connection status within the optical node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no visual indication system is used, then the device complexity is reduced, but the reliability deteriorates due to confusion and unintended disruptions during maintenance
Solution Approach 1:
The patent uses multi-color light sources (LEDs) to indicate different connection states. Each uni-wavelength interface indicator can display different colors to show which multi-wavelength interface it is connected to, providing clear visual distinction without adding complex electronic control systems.
Solution Approach 2:
The system uses passive indicators on multi-wavelength interfaces that automatically reflect the connection state through the uni-wavelength interface indicators. The indicators self-configure to show connection status without requiring active control or complex processing.
2Ease of operation
If multi-color light sources are used for visual indication, then the ease of operation is improved, but the use of energy increases due to active indicators requiring electrical power
Solution Approach 1:
The uni-wavelength interface indicators serve multiple functions: they indicate connection status, identify the specific multi-wavelength interface being connected to, and provide visual guidance for maintenance operations. This multi-functionality reduces the need for separate indicator systems for each purpose.
Solution Approach 2:
The patent employs simple, low-cost LED indicators that consume minimal power. These indicators are designed to be simple and inexpensive, providing adequate visual indication without requiring complex or power-intensive systems.
3Use of energy by moving object
If passive indicators are used for multi-wavelength interfaces, then the use of energy is reduced, but the ease of operation deteriorates due to limited visual indication capability
Solution Approach 1:
The uni-wavelength interface indicators act as intermediaries that translate the passive indication state of multi-wavelength interfaces into visible visual information. The passive indicators on multi-wavelength interfaces communicate their state through the active indicators on uni-wavelength interfaces, combining the energy efficiency of passive indicators with the visibility of active indicators.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a clear and visual indication of interface connections, reducing operator errors and facilitating maintenance by ensuring that network configurations and troubleshooting are done accurately, thereby minimizing disruptions and improving network reliability.
Implementation Method 1
Each multi-color light source may be implemented with multiple light emitting diodes (LEDs) within a single mechanical package
Data Source
AI summary
A method and apparatus for visually indicating the connections between optical interfaces is provided. The optical interfaces may include multi-wavelength optical interfaces and uni-wavelength optical interfaces. The optical interfaces may reside within optical nodes contained within an optical network.