Question 28C3

GPS units on a vessel's bridge are typically interconnected with other navigation and communication equipment using NMEA-0183 or NMEA-2000 LANs. **NMEA-0183** is an older, serial data communication standard that allows various marine electronic devices (like GPS receivers, depth sounders, autopilots, and chartplotters) to exchange information. It uses a simple serial data protocol. **NMEA-2000** is a newer, higher-speed, CAN bus-based standard designed to replace NMEA-0183. It provides a more robust and expandable network for marine electronics, allowing for more data points and easier integration of multiple devices. Both standards are specifically developed by the National Marine Electronics Association for marine applications, ensuring interoperability between different manufacturers' equipment. This allows a GPS unit to feed crucial position, course, and speed data to systems like radar, AIS, chartplotters, and autopilots. The other options are incorrect because: * **A) Through a 8-bit parallel line network:** Parallel lines are not used for networking multiple devices across a vessel. * **B) Through a USB port:** USB is primarily for connecting peripherals to a computer and is not a general networking standard for multiple marine bridge devices. * **C) Through an Ethernet LAN:** While some very modern integrated marine systems might use Ethernet for specific high-bandwidth applications, NMEA-0183 and especially NMEA-2000 remain the dedicated and most common standards for core sensor data exchange among bridge equipment.