Breakout Cable Data-Lane Segmentation for 100 Gbps Bandwidth
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Solution Overview
Problem
Current QSFP+ to 4 SFP+ Active Optical Splitter Cables are limited in their ability to efficiently connect high-speed Ethernet networks, particularly in supporting nominal 100 Gbps or 400 Gbps data transfer rates across multiple systems without adequate bandwidth distribution.
Innovation Solution
A breakout cable design featuring a data-lane module connected to multiple modules via cables, enabling host-to-system and system-to-host communications at nominal 25 Gbps, 100 Gbps, or 400 Gbps by distributing data signals across multiple lanes and channels, utilizing various types of modules such as QSFP, SFP+, CFP2, and CFP4, and cable configurations to support high-speed interconnectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a QSFP+ to 4 SFP+ Active Optical Splitter Cable is used, then connectivity between 4 systems is enabled, but the data transfer rate is limited and bandwidth distribution is inadequate for 100 Gbps or 400 Gbps networks
Solution Approach 1:
The cable is divided into multiple independent data lanes (4 lanes for 100Gbps, 16 lanes for 400Gbps), each capable of transmitting data independently. This segmentation allows the total bandwidth to be distributed across multiple parallel channels, enabling high-speed data transfer by aggregating the capacity of individual lanes.
Solution Approach 2:
The patent transitions from a single-channel connection to a multi-lane parallel architecture, adding the dimension of parallel data paths. This dimensional expansion from one communication channel to multiple simultaneous channels enables the system to achieve 100Gbps or 400Gbps throughput by operating across multiple data lanes concurrently.
2Speed
If data signals are distributed across multiple lanes and channels, then high-speed communication at 100 Gbps or 400 Gbps is achieved, but the cable structure becomes more complex
Solution Approach 1:
The cable design incorporates multiple data lanes that can be configured for different data rates (25Gbps, 50Gbps, 100Gbps, 400Gbps), making the same physical infrastructure capable of supporting multiple network speeds and configurations. This multi-functionality reduces the need for separate cable designs for different speed requirements.
Solution Approach 2:
The cable structure nests multiple data lanes within a unified connector framework, where individual lanes are organized hierarchically within the overall cable assembly. This nested organization allows complex multi-lane functionality to be managed through a standardized interface structure.
Data Source
AI summary
A breakout cable includes a data-lane module comprising a plurality of data lanes configured to send and receive a plurality of data signals, a plurality of breakout modules, and a plurality cables. Each breakout module is associated with a data lane and each cable interfaces with the data-lane module and a corresponding data lane to send and receive the plurality of signals between the data-lane module and a corresponding breakout module at a nominal 25 Gbps or a nominal 100 Gbps. In various embodiments, the data-lane module connects to a host and each of the plurality of modules connects to one or more system(s) to enable host-to-system(s) communications and system(s)-to-host communications at a nominal 100 Gbps or a nominal 400 Gbps.