Shared Protection Line Boards for Optical Transmission Redundancy
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Solution Overview
Problem
Current optical transmission systems require dual resource configurations for redundancy protection, leading to high costs due to the need for multiple line boards and optical components, which affects reliability and efficiency.
Innovation Solution
An optical transmission device and system where a plurality of active line boards share a common protection line board, allowing for shared redundancy protection without dual configurations, and includes optical connection elements to switch between primary and secondary multiplexer/demultiplexer boards to ensure reliability and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual resource configurations are used for redundancy protection, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
Multiple active line boards share a common protection line board, merging the protection function into a single shared resource rather than having separate protection boards for each active board. This reduces device complexity while maintaining reliability through shared redundancy protection.
Solution Approach 2:
The protection line board is designed to serve multiple active line boards simultaneously, making it a universal component that performs the same protection function for different active boards. This multi-functionality approach reduces the total number of components needed while ensuring reliability across all active lines.
2Reliability
If dual resource configurations are used for redundancy protection, then reliability is improved, but the quantity of line boards increases
Solution Approach 1:
Multiple active line boards share a common protection line board, merging the protection function into a single shared resource rather than having separate protection boards for each active board. This reduces device complexity while maintaining reliability through shared redundancy protection.
Solution Approach 2:
The protection line board is designed to serve multiple active line boards simultaneously, making it a universal component that performs the same protection function for different active boards. This multi-functionality approach reduces the total number of components needed while ensuring reliability across all active lines.
Data Source
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AI summary
This application discloses an optical transmission device, system, and method. The optical transmission device includes a tributary board, an electric cross unit, an active line board, a protection line board, a first multiplexer/demultiplexer board, and an optical amplifier board. A quantity of protection line boards is less than a quantity of active line boards. A first port of the tributary board is configured to transmit client service data, and the tributary board, the active line board, and the protection line board are all electrically connected to the electric cross unit; the active line board, the protection line board, and the optical amplifier board are all optically connected to the first multiplexer/demultiplexer board; and a second port of the optical amplifier board is configured to transmit an optical signal that carries the client service data. When a first preset condition is met, the electric cross unit is configured to copy or schedule, to the protection line board, client service data that is to be processed by the active line board, and the first multiplexer/demultiplexer board is configured to perform multiplexing and demultiplexing in cooperation with the protection line board. A protection function of the protection line board in the optical transmission device may be shared by a plurality of active line boards, to reduce redundancy protection costs.