MPO Switch Non-blocking Parallel Fiber Testing
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Solution Overview
Problem
Current MPO switch devices require disconnection and reconnection of test systems to test MPO cables bi-directionally, which is time-consuming and prone to contamination, and do not allow simultaneous testing of adjacent ports.
Innovation Solution
A multi-directional MPO switch device with non-blocking connections and a switch array that allows simultaneous testing of all common 1 GB, 10 GB, and 40 GB transmit and receive fiber pair paths, using a single test system with a loop cable connector for bi-directional testing without reattaching test system cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single test system is used to test MPO cables bi-directionally by disconnecting and reconnecting, then testing can be performed with one system, but test time increases and contamination risk increases
Solution Approach 1:
The invention segments the MPO cable testing into multiple independent fiber pairs that can be tested simultaneously through parallel test paths. The cable is divided into separate testable units (fiber pairs) that can be measured concurrently rather than sequentially, enabling bi-directional testing without requiring physical reconnection of the test system.
Solution Approach 2:
The invention adds a spatial dimension to the testing process by implementing multiple test paths that operate in parallel. Instead of a single linear test path that requires sequential measurement, the system creates multiple simultaneous measurement channels that can test different fiber pairs at the same time, effectively transforming a one-dimensional sequential process into a multi-dimensional parallel process.
2Quantity of substance
If a single test system is used to test MPO cables bi-directionally by disconnecting and reconnecting, then testing can be performed with one system, but contamination risk increases
Solution Approach 1:
The test system is segmented into isolated measurement channels for each fiber pair, preventing cross-contamination between tests. Each fiber pair has its own dedicated test path that remains physically connected throughout the bi-directional testing process, eliminating the need to disconnect and reconnect connectors that would expose them to contamination.
Solution Approach 2:
The test connections maintain continuous physical contact throughout the entire bi-directional testing process. The test system remains connected to the MPO cable without disconnection, ensuring that connectors and interfaces do not暴露 to environmental contaminants. The testing process continues uninterrupted across all fiber pairs through the parallel test paths.
3Ease of operation
If traditional MPO switch devices are used, then testing can be performed sequentially, but adjacent ports cannot be tested simultaneously
Solution Approach 1:
The MPO cable is segmented into multiple independent fiber pairs, each capable of being tested through its own dedicated test path. This segmentation allows adjacent fiber pairs to be measured simultaneously without interference, as each pair has its own isolated measurement channel that can operate in parallel with others.
Solution Approach 2:
The invention merges multiple test paths into a single integrated test system that can simultaneously measure multiple fiber pairs. By combining several measurement channels into one unified device, the system achieves parallel testing capability while maintaining ease of operation with a single instrument rather than multiple separate test devices.
Data Source
AI summary
An MPO switch device that includes a first input/output port and a second input/output port, a MPO port, a plurality of switches disposed between the first input/output port and the second input/output port, and a switch control for controlling the position of each of the switches to direct light through a desired return path. The plurality of switches are arranged and connected together by non-blocking connections that allow simultaneous testing of all common 1 GB, 10 GB, and 40 GB transmit and receive fiber pair paths.