Which statement is true about adjusting the voltage drop when the calculation shows an excess of 0.1 volts?

Which statement is true about adjusting the voltage drop when the calculation shows an excess of 0.1 volts?

• A. You should replace the backbone.
• B. You should move devices away from the power tee.
• C. You may move higher LEN devices toward the power tee.
• D. You should ignore the result.

Answer: (C)

Voltage drop on the NMEA 2000 backbone comes from the resistance of the wiring and the length of the current path. When a calculation shows an excess drop, the most effective fix is to shorten the path for the heavier loads. Moving higher LEN devices toward the power tee reduces the distance those higher-current devices must current through, which lowers the voltage loss and improves the voltage those devices receive. Replacing the backbone or moving devices farther away would not address the issue, and ignoring the result leaves the problem unsolved.

Voltage drop on the NMEA 2000 backbone comes from the resistance of the wiring and the length of the current path. When a calculation shows an excess drop, the most effective fix is to shorten the path for the heavier loads. Moving higher LEN devices toward the power tee reduces the distance those higher-current devices must current through, which lowers the voltage loss and improves the voltage those devices receive. Replacing the backbone or moving devices farther away would not address the issue, and ignoring the result leaves the problem unsolved.