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Category Icon N2KAnalyzer (11)
Maretron's analysis and product configuration software.
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Maretron's network design tool.
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N2KBuilder, N2KAnalyzer
There were 6 articles found in this category:
  1. questionShould I use double ended cordsets or should I build my own cables using bulk cable and field attachable connectors?
    If possible, you should consider using over molded double ended cordsets since they are less expensive and they tend to be more reliable than cables made using bulk cable and field attachable connectors. Unfortunately, over molded double ended cordsets only come in a limited number of lengths, s ...

  2. questionWhat is a backbone or trunk line?
    The backbone, or trunk line, is the main network line usually running stem to stern in the vessel. Each end of the backbone or trunk line has a termination resistor. Individual products are connected to the network using drop lines off the main backbone or trunk line. "Tees" are used to connect ...

  3. questionHow do I know how much current an NMEA 2000 product will draw from the network?
    Manufacturers of NMEA 2000 equipment are required to disclose the amount of current drawn from the NMEA 2000 network. The amount of current used from the network is expressed as a Load Equivalence Number (LEN) where each LEN is equal to 50mA. For example, a device that draws 0.5 amperes from the ...

  4. questionWhat is a Load Equivalance Number (LEN)?
    A Load Equivalence Number or LEN is a whole number used to express the amount of current that is drawn from an NMEA 2000 network. One LEN is equal to 50mA. If a device draws 151mA of current from the network, then its LEN is 4. Note that the LEN is always roundedup to the next whole number.

  5. questionWhat is the maximum current that a single device may draw from an NMEA 2000 network?
    The maximum allowable current that a device is allowed to draw from the NMEA 2000 network is 1 ampere. Devices requiring more than 1 ampere of current use a separate power supply connection, which is required to be isolated from the NMEA 2000 power supply (this prevents any possibility of ground ...

  6. questionWhat are the basic componets of an NMEA 2000 network?
    Every NMEA 2000 network requires a power source or powertap, a backbone or trunk line with a terminator at each end, and two or more NMEA 2000 products connected with drops from the trunk line. You "tee" off of the backbone with drop cables to the individual products.


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