Yes, you can.
However, remember that the TIU needs power for itself and it can only get power from either Fixed #1 Input or from the Aux.Power port. So, if you don't have a separate power source plugged into the Aux. Power port, be sure to have power going into Fixed #1 Input at all times.
This and a whole lot more is all in MTH’s “The DCS Companion 3rd Edition", available for purchase from many fine OGR advertisers and forum sponsors, or as an eBook or a printed book at MTH's web store!