Defining Asset Route with different Asset Groups

Hi. When defining asset routes, the following are needed: Asset Group, Asset Number (Asset Route), Owning Department, Criticality, WIP Accounting Class, and Area. Does this mean that all assets belonging to one asset route must belong to the same Asset group and will be charged to the same WIP Accounting Class? We have a scenario similar to below example:

CC-L01  - Asset group: Chain Conveyor

               Owning Department: Smelter

               Wip Accounting Class: 1131.PE

CC-L02 - Asset group: Chain Conveyor

               Owning Department: Smelter

               Wip Accounting Class: 1131.PE

PU-L03 - Asset group: Pump

               Owning Department: Smelter

               WIP Accounting Class: 1131.PE

PU-Z01 - Asset Group: Pump