Connect Old Raymarine Stuff to New NMEA 2000 Backbone?

hardee · Posted: Wed Jun 09, 2021 10:52 pm Post subject:

Pat, does N2K come after Y2K Razz

A saw the remark about moving into the next century.

Good for you.

Harvey
SleepyC Moon

ssobol · Posted: Wed Jun 09, 2021 11:33 pm Post subject:

I used one of these for my NMEA 2000 network.

https://www.thegpsstore.com/GPS-Accessories/Garmin-Accessories/Garmin-NMEA-2000-Multiport-T-Connector

Pat Anderson · Posted: Thu Jun 10, 2021 3:33 pm Post subject:

This four port connector from Ancor is the same brand as my backbone, is $11 dollars less expensive, and will be here a day or two after I order it.

[img]

TyBoo · Posted: Thu Jun 10, 2021 6:24 pm Post subject:

I think you need to put a terminator on any unused port so unless you are hooking up four devices the singles might be cheaper in the long run.

Pat Anderson · Posted: Thu Jun 10, 2021 7:25 pm Post subject:

Hunkydory · Posted: Thu Jun 10, 2021 8:13 pm Post subject:

Pat, this is a photo of part of the combination Raymarine Seatalk & regular NMEA 2000 network, I made up last winter for our new Raymarine chart plotter, auto Pilot, Honda HD-4 motor gauges & NMEA 2000 motor information. Along with backbone needing plugged any unused data spur must also be plugged. I didn’t have any left over ports, so didn’t have to plug any off.

The backbone is all Raymarine Seatalk. The spur lines coming in & out are a combination of Seatalk & NMEA 2000. The NMEA 2000 Spurs needed adapter cables to connect to & from the Seatalk backbone.

jkidd · Posted: Thu Jun 10, 2021 8:17 pm Post subject:

Just 2 terminators in the network at the ends. You can use these for unused ports. https://www.amazon.com/Ancor-270111-NMEA-2000-Blanking/dp/B07YCBC7JC/ref=sr_1_2?dchild=1&keywords=Nmea+2000+caps&qid=1623370491&sr=8-2

Hunkydory · Posted: Thu Jun 10, 2021 8:26 pm Post subject:

Jody of course is right about the caps. When building the network, I thought there would be extra connecting points left over & the plugs I purchased looked similar to the backbone plug.

Pat Anderson · Posted: Fri Jun 11, 2021 10:01 am Post subject:

Thanks, Jay and Jody. I don't have anything on the SeaTalk ports of the C-80, everything, and I do mean everything, is on the C-80 NMEA 0183 port. That will change incrementally! I will get some blank caps when I get the second tee connector. I am also going to need some conecting cables that are shorter than the two six foot cables that came with the start kit! Jay, I see where you mounted your backbone, that seems like a good spot, but do the screws poke up through the dash? I don't know how thick the fiberglass is there.

Hunkydory · Posted: Fri Jun 11, 2021 12:55 pm Post subject:

Pat, that area is somewhere between 9/16 & 3/4 inch thick. I didn’t go through with the screws, I used, which at present I can’t remember the depth in. I cover the electrical area with a thick vinyl cloth attached by snaps, that are also screwed in & believe have 1/2 inch screws.

The auto pilot alone used 5 ports from the backbone, then another 4 for the engines to the Honda gauges & one for power. Many networks would also include more for the radio, radar & sonar.

My present radio is having transmit problems, so plan to replace it with one with AIS, so will be adding another single port for it.

Pat Anderson · Posted: Sun Jun 27, 2021 7:30 pm Post subject:

OK, I spent a little time (actually a lot of time) today playing with LibreOffice Draw to make the base diagram of the components that need to be connected and configured. This is kind of patterned after the diagram Rogers Electronics in Portland did for Harvey's system, which has a bit more stuff than I do.

I did not show anything that gets connected to the N2K backbone which for now are the Suzuki MFD and N2K GPS. I see there is an extra box on top of the Digital Sounder Module that needs to be deleted! What remains is to add the colored lines corresponding to the wires in each cable showing all the connections, then to figure out routing and configuration for the Miniplex 3 USB-N2K multiplexer, and finally the settings for the Raymarine C-80 so it can accept and display the 38,400 baud AIS output along with the 4,000 baud output of everything else. I am hoping with the collective wisdom here, we'll get 'er done!