EMA Constraint Manager for OrCAD is said to ensure design intent is communicated and adhered to during PCB implementation.

Permits OrCAD Capture to be an integral part of the Cadence Allegro constraint driven flow paradigm, providing a structured way to manage constraints across all tools in the Cadence PCB design flow. Easily embeds design constraints directly into OrCAD schematic. Using a smart spreadsheet interface, users can constrain nets by adding electrical, physical, and spacing rules for routing those nets, ensuring nets are routed properly and reducing time required to route nets. Constraints can be set on individual nets or groups of nets. Commonly used sets of constraints can be organized into CSets and applied to CM objects by CSet name. Has full support for PinPair, Net, XNet, Differential Pair, Bus, NetGroup, NetClass, and MatchGroup objects. Includes Differential Pair viewer to help visualize how rules will be applied during physical implementation. Stores constraints in OrCAD Capture design file, so there is no need to manage constraints and designs. Integrates with Allegro Constraint Manager to share constraint information, so stackup information can be back-annotated. Allows bidirectional transfer of physical, spacing and electrical constraints. Constraints can be saved separately from a design so that they can form a constraint library to be shared between designs. 

EMA Design Automation

go.ema-eda.com/constraints

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