Expedition PCB has several different topologies each for a specific purpose.
· MST – Allows connections in any order including branch points on pins. Dynamic re-ordering in layout based on placement.
· Chained – Serial order to connections following ordering rules of Source->Load->Terminator. Dynamic re-ordering in layout based on placement.
· Custom – User defined connection order including branch points on pins and in space (Virtual Pins). No dynamic re-ordering in layout however Netline Manipulation allows the order to be changed on a net by net basis.
· T-Shape, H-Tree, Star – These work more like Chained but use different rules to automatically create branch points based on pin types (S, L, T)
· Complex – Allows pin groups to be created each having its own topology type. So this is a combination of many of the topologies above by pin group.
Without knowing the exact type of routing your trying to accomplish, it’s difficult to suggest a specific topology to solve your use case. However if I had to suggest a topology without knowing much about your use case, I think Chained might work in your situation. It’s flexible allowing dynamic re-ordering, serial based on pin type (S, L, T), uses the Stub Length property allowing branching between pins that are very close in proximity to each other.
ExpeditionPCB/XtremePCB Product Marketing Manager