DinaSys DTR relay module for DTC turntable controller The DTR is designed for using with block controlled layout systems like Dinamo or DCC feedback computer control. It allows you to use two feedback on up to 8 sidings and only activates the siding when you want to drive the locos out. When the turntable is not set to the siding it is de activated and only repots the status off the siding the turntable is facing. The DTR is connected to the CAN bus to the DTC.