When installing a NMEA 2000 network using bulk cable pulled from a spool, which component must be installed?

When installing a NMEA 2000 network using bulk cable pulled from a spool, which component must be installed?

• A. Inline fuses at the end
• B. Field-attachable connectors
• C. RJ-45 adapters
• D. Crimp-on BNC connectors

Answer: (B)

Using bulk NMEA 2000 cable means you’re building a CAN-based data bus that must be connected and sealed with proper hardware. Field-attachable connectors are designed to be crimped directly onto the bulk cable, creating reliable, waterproof connections and the correct impedance for the two-wire CAN network. These connectors allow you to terminate the trunk and attach device drops or terminators correctly, which is essential for the bus to function across the length of the installation. Inline fuses, RJ-45 adapters, or crimp-on BNC connectors do not provide the proper NMEA 2000 interface or sealing, and are not used to form the bus with bulk cable.

Using bulk NMEA 2000 cable means you’re building a CAN-based data bus that must be connected and sealed with proper hardware. Field-attachable connectors are designed to be crimped directly onto the bulk cable, creating reliable, waterproof connections and the correct impedance for the two-wire CAN network. These connectors allow you to terminate the trunk and attach device drops or terminators correctly, which is essential for the bus to function across the length of the installation. Inline fuses, RJ-45 adapters, or crimp-on BNC connectors do not provide the proper NMEA 2000 interface or sealing, and are not used to form the bus with bulk cable.