In NMEA 2000, a load equivalent number (LEN) of 1 corresponds to how much current?

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Multiple Choice

In NMEA 2000, a load equivalent number (LEN) of 1 corresponds to how much current?

In NMEA 2000, how much power a device uses on the bus is expressed as a load equivalent number, or LEN. Each LEN represents a fixed amount of current, specifically 50 mA at the nominal bus voltage. So a LEN of 1 means the device draws about 50 mA from the bus. The total current on the network is the sum of all devices’ LEN values multiplied by 50 mA. For example, a device with LEN 3 draws about 150 mA, and two devices with LEN 1 each use about 100 mA combined. This standardization helps engineers size the power supply and ensure the backbone isn’t overloaded.

In NMEA 2000, how much power a device uses on the bus is expressed as a load equivalent number, or LEN. Each LEN represents a fixed amount of current, specifically 50 mA at the nominal bus voltage. So a LEN of 1 means the device draws about 50 mA from the bus. The total current on the network is the sum of all devices’ LEN values multiplied by 50 mA. For example, a device with LEN 3 draws about 150 mA, and two devices with LEN 1 each use about 100 mA combined. This standardization helps engineers size the power supply and ensure the backbone isn’t overloaded.

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