To complete the electrical process from end to end, CATIA Electrical products can import electrical specifications from various data repositories. It is possible to manage links to map electrical devices positioned in 3D to any format of electrical specifications (textual, list, 2D schematics). This can be done at various steps of the process (from functional or logical information) to insure the reliability and integrity of the 3D implementation of your electrical systems. In Electrical Wire Routing, the connectivity information can also be imported to route the wires, equipotentials or signals after the component placement in the geometry area.
You can either use the import from external data mechanism or the integration with Electrical System Functional Definition.

Working with External Data
Working with Electrical Functional Definition