[RIIM] Why can’t I mix high-power RIIM modules with normal power RIIM modules in the same network?

Well, you can if you want to. We just do not recommend it as it creates asymmetrical links. If you have a high-power node A and normal power node B, then Node B will always hear node A, but when it tries to transmit to Node A, it will fail as it transmits with just normal power. If Node A transmits with high-power and Node B hears it, B might choose A as it’s parent, then when it’s time to relay data through the mesh, B won’t be able to speak to it’s parent and the mesh-link will be broken. Thus, the mesh and routing structure would behave in unpredictable and unreliable ways.