Issue link: https://resources.pcb.cadence.com/i/1532920
9. Click the HS_TOP_INNER from the Available Layer Sets list. It will move over to the Assigned Layer Sets section. Click OK. 10. Finally we will apply this ECSet (ECS1) to the DATA(15) Net Class as an example, as shown below. 11. Scroll horizontally to the final column named Layer Sets. 12. Some nets in the Net Class will pass or fail the Name within the layer set, because not all the nets are routed on the TOP, GND or INNER1 layers. So it is working as intended. Impact: The layers a signal goes through vertically affect how much coupling and EMI is passed through the PCB. Utilize the constraint manager to avoid unnecessary EMC issues in PCB Design. Maximum Via Count Purpose: Set the maximum number of vias for a trace or net to maintain impedance control and minimize parasitic capaci- tance. Each via introduces discontinuities and can degrade signal integrity, especially at high frequencies. Steps: 1. Open the Constraint Manager. 2. Navigate to the Electrical > Electrical Constraint Set > Routing > Vias worksheet. 3. Then either by creating a constraint set or using an existing one (like the ECS1 below), set the Max Via Count to 2. 4. Now you can apply this constraint set to specific differential pairs or nets by going to the Electrical > Net > Routing > Vias worksheet. 21 www.cadence.com OrCAD X Constraint Management Guide