I just replaced my B&G Network Quad with a Zeus2. I can't tell for sure from the supplied documentation if I can use the old transducers with the new MFD. I emailed B&G Support on Monday and while they have since sent me two emails advertising their other products, they have not responded to my question. I understand I will need a network backbone with drops to each transducer but I'm trying to find out if the Zeus will interpret the information from the existing transducers, which I assume is nmea 0183. There is some mention in the manual about nmea 0183 and the video port on the Zeus, but it's not clear if it will take input in this format or just output through the port.