| 摘要 |
An industrial automation input output module is protected against ingress of water, oil, debris, dirt and other contaminants without use of a potting compound. An elastomeric main seal provides a fluid-tight connection between inter-fitted inner and outer housing members that define a housing of the module. The one-piece main seal includes an integral light pipe portion with at least one light pipe that communicates light from an LED or other light source to a visual indicator opening in the housing, and the light pipe portion is also sealed to the housing to prevent ingress of contaminants through the visual indicator opening. Connectors pass through a wall of the housing and connector seals are used to prevent ingress of contaminants between the connectors and the housing. The connectors are also secured against rotation relative to the housing.
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