Build Your Perfect NMEA 2000 Backbone
High-performance, reliable cabling solutions for modern vessel management. Seamlessly connect your GPS, sensors, and displays with industry-standard NMEA2000 hardware.
The 5 Essential Backbone Components
A reliable NMEA 2000 system depends on these core parts. Mix-and-matching without certified quality is the #1 cause of marine electronics failure.
Backbone Cables
The central data highway for your vessel, available in Micro and Mini standards.
- • M12 5-Pin standard
- • UV-resistant PUR jacket
- • High-speed CAN BUS protocol
- • 60m (197ft) max length
Tee Connectors
Essential junction points to add devices to the backbone without signal loss.
- • Plug-and-play design
- • IP68 waterproof rating
- • Gold-plated contacts
- • Supports up to 50V DC
Drop Cables
Connect individual sensors, plotters, and displays to your network.
- • Standard 6m (20ft) max
- • Flexible cable routing
- • M12 female to male
- • High EMI shielding
Terminators
Critical 120-ohm resistors that eliminate signal reflection at both ends.
- • Required on both ends
- • Precise 120Ω resistance
- • Male & Female available
- • Prevents “Ghost” data
Power Cables
Supplies 12V DC power to the entire NMEA 2000 network.
- • Inline fuse protection
- • Balanced voltage delivery
- • Micro-style connector
- • Tinned copper conductors
Custom Cable Lengths?
Need a 25m backbone or custom multi-port hubs? We offer OEM/ODM services for complex marine projects.
Contact Technical SalesMicro vs. Mini: Which One?
Micro (M12A 5P)
The most common choice for recreational vessels. Compact M12 connectors supporting up to 4 amps.
Mini (7/8″ 5P)
7/8″ connectors for long cable runs (>100m) or high power demands on commercial vessels.
“Always use an Ohm-meter to test your backbone. A correctly terminated network should read exactly 60 Ohms between the white (CAN H) and blue (CAN L) pins.”
Ready to Upgrade Your Marine Network?
Whether you are a solo boat owner or a marine engineering firm, we provide the components and expertise to ensure your data flows without interruption.
- Global fast shipping on all N2K components
- ISO 9001 certified manufacturing
- 100% compatibility with Garmin, Raymarine, B&G, and Lowrance
- Dedicated technical support for complex network design
Frequently Asked Questions
What is the maximum length allowed for a single NMEA 2000 Drop Cable?
The maximum allowed length for any single drop cable connecting a device to a T-connector is strictly 6 meters (20 feet).
Why do I need terminators, and how many should I use?
Terminators (120-Ohm resistors) are necessary to absorb data signals at the ends of the network, preventing signal reflection (echoes) that cause data corruption. You must use exactly two terminators.
When testing the network, what Ohm reading indicates correct termination?
The backbone should measure approximately 60 Ohms between the CAN High and CAN Low data pins.
What is the main difference between Micro (M12) and Mini (7/8″) connectors?
Micro (M12) is the standard size for recreational vessels, while Mini (7/8″) is heavy-duty and used for much longer backbone runs or high-power-demand networks.