I have my layout controlled by two tpc's and my switches with acs's controlling z1000 and Ross switches. I have both MTH ps2 and Lionel engines and want to use both systems. When I connect the TIU to the tmcc command base, I have no way to get the com and data from the tmcc control base to control the tpc or the ASC's. Since I have 34 switchs and a control panel tied into the tmcc, I need to get the com and data to the TPC for control of switches. How can it be done ? Help ? I tired several options none of them have worked.