Furuno NMEA 2000 Junction Box

The Furuno NMEA 2000 Junction Box (model FI5002) is a certified 6-port network hub engineered to consolidate and distribute NMEA 2000 data across modern marine electronics systems. This junction box serves as the central backbone connector for integrated navigation, autopilot, sounder, and sensor networks found on fishing vessels, cruisers, and offshore powerboats that demand reliable real-time data sharing without signal loss or bottlenecks.

The FI5002 features two dedicated NMEA 2000 backbone ports plus six additional NMEA 2000 network ports, allowing you to build redundancy into your system architecture while supporting up to 40 LEN (Load Equivalent Number) on 12VDC or 24VDC power supplies. Its low power draw—less than 2A on 12V systems—makes it ideal for vessels with modest electrical budgets. The compact footprint (7 x 2 x 9 inches) fits neatly into tight helm spaces without consuming valuable real estate in engine compartments or console installations.

Weekend anglers upgrading to multi-device setups—adding a second display, autopilot module, or networked fishfinder—rely on junction boxes to eliminate daisy-chaining problems that degrade signal integrity. Serious offshore operators and commercial fishing captains depend on certified NMEA 2000 hubs to maintain chart plotter, radar, VHF radio, engine monitoring, and trim-tab synchronization in high-noise electrical environments. The Furuno FI5002 is purpose-built for this backbone role, offering the port density and voltage flexibility required across the spectrum of modern marine installations.