Using the Cross-Reference Check tool, AutoCAD Electrical toolset first extracts a complete list of components from the project drawing set. Then it prompts you to select a component to check. AutoCAD Electrical toolset reads the tag of the component, finds all associated child components, and lists them in a dialog box. It also displays the assigned catalog number of the parent (if one exists). You can do a catalog check to see if the description of the item indicates that the quantity of contacts can be accommodated.