Creating or Deleting Differential Pair Classes

The following procedures describe how to create or delete differential pair classes in Constraint Browser.

• In eCADSTAR PCB Editor, launch Constraint Browser by clicking Design > Design Rules > Constraint Browser or Home > Design Rules > Constraint Browser on the ribbon.
• In eCADSTAR PCB Viewer, launch Constraint Viewer by clicking Home > Design Rules > Constraint Viewer on the ribbon.
• In eCADSTAR Schematic Editor, launch Constraint Browser by clicking Design > Browser > Constraint or Home > Browser > Constraint on the ribbon.
• In eCADSTAR Schematic Viewer, launch Constraint Viewer by clicking Home > Constraint Viewer > Constraint Viewer on the ribbon.

Creating a Differential Pair Class

1. In Constraint Browser, click the Signals button and then select the Classes/Groups tab. The tree for classes and groups is displayed.
2. Right-click the Differential pair classes branch in the tree, and then select Differential Pair Class Manager on the assist menu. The Differential Pair Class Manager dialog is displayed.
3. In the Differential Pair Class Manager dialog, Create Differential Pair Class box, enter a differential pair class name and click Create. The differential pair class that you specify is added to the Existing Differential Pair Classes box, in the Differential Pair Class Manager dialog.
4. In the Differential Pair Class Manager dialog, click Close. The differential pair class that you specify is added to Differential pair classes branch in the Classes/Groups tab.

Deleting a Differential Pair Class

1. In Constraint Browser, click the Signals button, and then select the Classes/Groups tab. The tree for classes and groups is displayed.
2. In the tree, right-click the differential pair class to be deleted and select Delete on the assist menu. The specified differential pair class is deleted from the tree.