LEN stands for Load Equivalency Number.

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Enhance your knowledge of NMEA 2000 standards. Study with interactive questions, hints, and explanations, tailored to gear you up for the exam. Excel in marine electronics!

Multiple Choice

LEN stands for Load Equivalency Number.

Explanation:
On a NMEA 2000 network, devices are measured by how much load they place on the 12V bus, expressed in Load Equivalency Numbers. One LEN equals about 50 mA of current drawn from the bus. By adding up the LENs of all connected devices, you determine the total network load and ensure it stays within the system’s power budget. This standard unit lets you compare devices and size power supplies, trunk wiring, and terminators appropriately. The other options describe terms unrelated to how NMEA 2000 characterizes device current draw.

On a NMEA 2000 network, devices are measured by how much load they place on the 12V bus, expressed in Load Equivalency Numbers. One LEN equals about 50 mA of current drawn from the bus. By adding up the LENs of all connected devices, you determine the total network load and ensure it stays within the system’s power budget. This standard unit lets you compare devices and size power supplies, trunk wiring, and terminators appropriately. The other options describe terms unrelated to how NMEA 2000 characterizes device current draw.

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