Explanation: NMEA 2000 is a modern, robust marine data network standard built upon the Controller Area Network (CAN) bus. This architecture inherently supports multiple devices simultaneously transmitting and receiving data on a single shared bus. Each device on the network can act as both a transmitter and a receiver, making it truly bi-directional and multi-master. In contrast, NMEA 0183 (and its predecessors 0181, 0182) uses a simpler serial communication protocol. It is typically a "one talker, multiple listeners" system, where a single device transmits data on a pair of wires to one or more receiving devices. While some bi-directional communication is possible, it generally requires dedicated point-to-point connections or complex multiplexing, and does not support the multi-transmitter, multi-receiver network topology of NMEA 2000.