NMEA 2000, the power “problem” part 1

Ben Ellison

Ben Ellison

Panbo editor, publisher & chief bottlewasher from 4/2005 until 8/2018, and now pleased to have Ben Stein as a very able publisher, webmaster, and editing colleague. Please don't regard him as an "expert"; he's getting quite old and thinks that "fadiddling fumble-putz" is a more accurate description.

5 Responses

  1. Sandy says:

    Educate me please! What are the implications of using 16 guage wires between Tees that use 20 ga to take power to devices?

  2. Olsonist says:

    The trunk line between two tees is a serial connection. But the drop line from a tee to a device is a parallel connection.

  3. JohnD says:

    Great post!
    22 awg really is kinda small to run a backbone off of. I had never even considered this. Thanks for the post.

  4. Joe Ferrara says:

    Did I read correctly on the Blue Heron website that the Raymarine SeaTalk NG backbone is at least 18 awg and is already compliant?
    If so, using the RM cables to my thinking has a big advantage. With those smaller connectors on the ends, they can be snaked through tighter wireways. The disadvantage is that they will require adapters (which are available) to convert from SeaTalk NG to standard NMEA 2000.

  5. Ben Ellison Ben Ellison says:

    Yes, Joe, SeaTalk NG cables have bigger, better power wires, which is good. But besides the need for adapters, note also that NG backbone and spur cables are not interchangeable (then again you end with a color coded network). After doing a little price searching this morning, I also think that Maretron’s Mid cable costs about the same as NG.

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