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RJ45 Connector

FEM Analysis of the DC current flowing through the connector. Computing the value for the ohm resistance.

Initial Situation

RJ45 Connector

RJ connectors are standardized by the U.S. Federal Communications Commission (FCCconnectors for communications cabling. Goal is to FEM-compute the Ohm Resistance of one cable inside the connector.

Picture: RJ45 ConnectorPicture: RJ45 Connector

 

Appropriate Method

3D Electrokinetic Solution

The Connector is modeled in NX CAD and then transferred to the Advanced Simulation module. Using the Magnetics solver a solution type "3D Electrokinetic" is performed. The material (copper) is assigned from the library and the mesh is a standard tetrahedral type. In the output requests the ohm-resistance is activated.

Picture: The picture shows the CAD ModelPicture: The picture shows the CAD Model

 

Result

Ohm Resistance and Current Distribution

The calculated Ohm resistance is 0,00512697 Ohm.

The next picture shows the computed current distribution in the cable.

Picture: Resulting Electric CurrentsPicture: Resulting Electric Currents

And the following picture shows in detail the contact area.

Picture: Detail View on CurrentsPicture: Detail View on Currents