Working with the Supply Nets Design Rule on a PCB in Altium Designer
This document is no longer available beyond version 21. Information can now be found here: Supply Nets Rule for version 25
Rule category: Signal Integrity
Rule classification: Binary
Summary
This rule identifies a supply net and specifies its voltage (or set of nets using the net class scope).
Constraints
Default constraints for the Supply Nets rule.
- Voltage - the voltage value for the net(s) falling under the scope (full query) of the rule.
How Duplicate Rule Contentions are Resolved
All rules are resolved by the priority setting. The system goes through the rules from highest to lowest priority and picks the first one whose scope expression matches the object(s) being checked.
Rule Application
Batch DRC and during Signal Integrity analysis.
Note
The supply net(s) can be specified by choosing the Net or Net Class from the drop-down field in the Where The Object Matches region of the PCB Rules and Constraints Editor dialog, and then choosing the required net or net class from the corresponding secondary drop-down list. The corresponding Full Query for the rules' scope will be as follows: InNet('NetName') - for a single net; InNetClass('NetClassName') - for a net class.