eS75 MFD displaying depth data

I have an eS75 MFD. I also have an older Airmar depth transducer connected to a Furuno fishfinder, and another Autohelm depth transducer connected to an older Autohelm depth display. Can I connect either of these transducers to display depth information on the eS75 MFD? Do I add an ITC-5, or a I70 display?, a Seatalk ng backbone?