Inline Termination Resistors are typically used when:

Inline Termination Resistors are typically used when:

• A. There are cable runs greater than 6 meters up a mast or tower.
• B. The backbone is shorter than 2 meters.
• C. The network is powered by a separate supply.
• D. There are no devices on the network.

Answer: (A)

Termination on a NMEA 2000 network helps prevent signal reflections on the CAN-based backbone. Inline termination resistors are typically used when there are long cable runs, such as runs up a mast or tower, to absorb the signal and maintain the proper impedance along that lengthy segment. This keeps communications reliable for devices located far from the main backbone. Shorter backbones, a separate power supply, or having no devices on the network don’t by themselves necessitate inline terminations—the long vertical or spanning runs are the situation that benefits most from this practice.

Termination on a NMEA 2000 network helps prevent signal reflections on the CAN-based backbone. Inline termination resistors are typically used when there are long cable runs, such as runs up a mast or tower, to absorb the signal and maintain the proper impedance along that lengthy segment. This keeps communications reliable for devices located far from the main backbone. Shorter backbones, a separate power supply, or having no devices on the network don’t by themselves necessitate inline terminations—the long vertical or spanning runs are the situation that benefits most from this practice.