Based on personal experience,you can't "mix & match" DECA equipment with other non-D* MoCA equipment. Having just 2 DECA adapters & one power supply doesn't give you much to work with. You'd need one DECA adapter with power adapter(or DECA Broadband adapter with power adapter to hook up to your router. Then,instead of setting up ethernet cable to where you want internet connection,you'd need to set up coaxial cable to where you want internet connection,have another DECA Adapter WITH power adapter(or DECA Broadband Adapter with power adapter) to attach an ethernet switch..............AND don't get me started on Band Stop Filter if you were going to try to hook this up to coaxial cable set up by your cable company if you were going to try this with cable broadband........
Simple answer,don't bother trying.*
*Disclaimer,Actually I do have a "MoCA" set up using DECA equipment,but.........it is hooked up using coaxial cable I already have set up for D* & their DECA MRV set up. In addition to the coaxial cable hooked up to D*'s DVR's/receivers,I have D* approved 2-way splitters to actually run signals to ethernet switches. However......with just 2 DECA adapters & one power adapter........refer to above statement.