Issue link: https://resources.pcb.cadence.com/i/1532922
So, between this CLS1_DIFF Class and itself, we will make the trace to others spacing equal 20 mils as a minimum, as opposed to 60 mils (basically differential pair members of this class will be 20 mils from trace edge to trace edge to other differential pair members of the same Class). To make that 20-mil (0.508 mm) spacing, go to the Spacing Constraint Set – All Layers worksheet, right click the Cadence_Demo cell, then choose Create – Spacing CSet… We name ours SCS2_DIFFDIFF, then click Ok, and it gets added to the list. Afterwhich, we set the Line To spacing column cell value to 20 mils (0.508 mm). 62 www.cadence.com OrCAD X Constraint Management Guide