High Density Communication System Using Nested Receptacle Connectors
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Solution Overview
Problem
Existing communication systems face limitations in data throughput due to signal integrity issues caused by the close proximity of double rows of contacts in pluggable modules and communication connectors, necessitating a high-density solution.
Innovation Solution
The proposed communication system incorporates a receptacle connector assembly with an inner and outer receptacle connector, each with a housing holding contact arrays, and a pluggable module that mates with both, increasing data throughput by optimizing contact arrangement and electrical shielding within a receptacle cage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If double rows of contacts are used in pluggable modules and communication connectors, then data throughput is increased, but signal integrity deteriorates due to close proximity of contacts
Solution Approach 1:
The communication connector is divided into two separate receptacle connectors (first and second), each with its own contact array. This segmentation allows the contacts to be spatially separated while still providing high-density connectivity, thus maintaining signal integrity while achieving increased data throughput through parallel communication channels.
Solution Approach 2:
The first and second receptacle connectors are nested within a common housing structure, with one receptacle connector positioned inside or adjacent to the other. This nesting arrangement allows both contact arrays to be housed in a compact space while maintaining adequate separation between contacts to preserve signal integrity, effectively increasing data throughput without compromising reliability.
2Productivity
If contact density is increased to achieve high density communication, then data throughput is improved, but signal integrity problems arise due to electromagnetic interference
Solution Approach 1:
A common housing structure serves as an intermediary element that houses both receptacle connectors. This housing provides a shared reference plane and structural support that helps manage electromagnetic fields, reducing interference between the high-density contact arrays while enabling increased data throughput through the dual-connector configuration.
Solution Approach 2:
The housing structure provides localized electromagnetic shielding and reference planes specifically at critical areas where the two contact arrays are positioned in close proximity. This local quality enhancement maintains signal integrity in high-interference zones while allowing overall high contact density for increased data throughput.
Data Source
AI summary
A communication system includes a receptacle connector assembly including a receptacle cage and a communication connector having an inner receptacle connector and an outer receptacle connector. The communication system includes a pluggable module received in the receptacle cage to mate with the communication connector. The pluggable module includes a pluggable body defining a module cavity. The pluggable module includes a module circuit board having mating pads at a mating edge of the module circuit board plugged into the inner receptacle connector and connector pads at a mounting location remote from the mating edge. The pluggable module includes a plug connector mounted to the mounting location. The plug connector includes plug contacts extending between a plug mating end and a plug mounting end. The plug mating end is plugged into the outer receptacle connector.