Engineer-Joe posted:Yes, as far as I know. There was a statement from MTH about mixing AC and DC on the same TIU. There were posts here refuting that. I'm not sure where that left off. I run all AC on certain TIUs (aux power in too) and all DC on others.
I've been powering my TIU through the AUX port with a DC power supply and Fixed 1&2 with AC (ZW) with no ill effects.