Industrial Transceiver Cage for Sealed Interconnects
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Solution Overview
Problem
Conventional pluggable transceivers, especially SFP transceivers, are not designed to operate in harsh industrial environments and become unreliable due to moisture and contamination, requiring environmentally sealed housings that complicate installation and removal.
Innovation Solution
An interconnect system with a transceiver module cage located in an industrial receptacle forms an environmentally-sealed connection, providing protection and improved accessibility, using push-pull insertion and bayonet-style mechanical latches for easy installation and termination in harsh environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pluggable transceivers are placed in an environmentally sealed housing to protect against moisture and contamination, then reliability in harsh environments is improved, but ease of operation deteriorates because the housing must be removed to access the transceiver
Solution Approach 1:
The system is divided into separate functional components: the transceiver module, the cage assembly, and the sealed housing. The cage assembly with latch mechanism can operate independently for transceiver installation/removal, while the housing provides environmental protection. This segmentation allows the transceiver to be accessed without compromising the sealed environment.
Solution Approach 2:
The cage assembly acts as an intermediary between the transceiver and the sealed housing. It provides a controlled access point that allows transceiver installation and removal while maintaining the environmental seal of the housing. The latch mechanism on the cage enables easy operation without requiring housing removal.
2Object-affected harmful factors
If the transceiver is accessible through a sealed housing, then environmental protection is improved, but installation time increases due to the need to remove the housing
Solution Approach 1:
The cage assembly is pre-configured with a latch mechanism that enables quick release and engagement. This preliminary design allows the transceiver to be installed or removed in a single quick motion without requiring sequential steps of housing removal, thereby reducing installation time while maintaining environmental protection.
3Ease of manufacture
If the transceiver module is mounted on a host PCB, then electrical connection is simplified, but flexibility in PCB layout is reduced and space is consumed
Solution Approach 1:
The transceiver module is extracted from direct PCB mounting and placed within a separate cage assembly. This extraction provides several benefits: the cage can be mounted on the PCB at flexible locations, the electrical connections are maintained through the cage structure, and the PCB layout is no longer constrained by the transceiver's physical footprint. The cage acts as an intermediary mounting structure that decouples the transceiver from direct PCB attachment requirements.
Data Source
AI summary
An interconnect system (30, 100) includes a transceiver module assembly (105) that is mountable in an industrial receptacle (28, 103). The receptacle mates to an industrial optical connector (34) to form an environmentally sealed connection. The receptacle has an interior passageway (143, 162) and mating means (124) for attaching the module assembly. The module assembly includes a spring-loaded module cage (50) for receiving active devices (48), such as SFP transceivers. The spring-loaded module cage can adjust its position within the receptacle to accommodate different type of modules from various vendors. When attached to the platform, the module assembly is positioned so that the cage's open end is accessible through the receptacle's passageway. Users have the option of plugging/unplugging the transceiver module either through the passageway or by removing the module assembly from the receptacle.