[PCB_FORUM] Constraint manager xnets

Good Morning,
I am looking for some help routing xnets in Allegro or Specctra.

I have xnets defined from adding component models.
I set up a class of xnets for prop delay to match a target xnet to +/-25mils.
I created pin pairs of each xnet from driver, through terminator resistors to receiver.

Xnet path=U1.1- R1.1-R1.8-U6.1
Created pin pair U1.1 : U6.1

How do I get Specctra to route the matched lengths.

Thanks for any input,
Mark


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