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N2K help

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Old 05-15-2018, 09:07 PM
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Default N2K help

Good evening, i hope it is ok that i ask a question about my NEMA 2000 network here. I have recently installed a SIMRAD go12 xse, SIMRAD rs20 vhf networked together to get LAT/LONG on both devices. (Connection works) Trying to get the engine data to the go12 to use it to its full potential. A machanic buddy of mine gave me a N2K to yamaha connector cable. It works to bring the engine data to the go12. The issue i am having is that once the engine data is on the go12, my vhf looses the LAT/LONG connection. I have moved my T-connectors around, keeping the power close to the center.

My ultimate goal is to not have to buy the Yamaha command link gateway.

Like i said, i get the engine data just fine, but it causes the VHF to fall off the network, and in the vhf menue, the N2K dosen't show back up until the N2K to Yamaha connector cable is unplugged.

Any help is greatly appreciated!

The power plant is a 2017 Yamaha F250XB
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Old 05-16-2018, 06:06 AM
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This makes not really sense as the VHF usually only get LAT/LON information from the N2K network.
Try to set the MENU/Radio Setup/GPS Source to the device showing up in the list.
You can also try to connect your VHF thru the NMEA0183 network (if your GO12 has a NMEA0183 connector)

If this don't fix your problem then i fear that the N2K to Yamaha connector cable is either bad or not the right one and you need the Command Link Gateaway.

Chris
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Old 05-16-2018, 06:13 AM
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Chris, thanks for the reply. So if the N2K to yamaha connector is unplugged, the VHF radio shows the go12 xse and a nema 0183, under the menue, radio setup, gps, networks. But once that N2K to yamaha connector is plugged in, the go12 xse network on the vhf go away. It doesnt make any sence to me.
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Old 05-16-2018, 06:39 AM
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are you sure your "network architecture" is correct?
a terminator at each end, on the "side" of the Tee?
"drop" cables and power only on the "bottom" of the Tee?

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I don't think you need a "Gateway" -
but where is the "Yamaha end" of the "N2K to Yamaha connector cable " plugged?
at the engine? or do you have Command Link "hub" for your Yamaha gauges?

in any case, the Yamaha connection only needs the blue, and white, wires of the "N2K to yamaha connector cable"
I'm unable to imagine why it could cause the problem, but to eliminate any possibility,
you could cut/cap the ends of the red and the black wires at that Yamaha plug of the adapter cable
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Old 05-16-2018, 07:04 AM
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Thanks for the reply. My n2k network is set up that way. The nema to yamaha cable only has the blue and white cables connected. Do you think i shoukd take the ground wire from the cable and ground it on the same plane as the n2k network that would?

I am at a loss. My research tells me i dont need that yamaha command link gateway, because i do not have the command link plus.

Thanks again for the help.
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Old 05-16-2018, 08:03 AM
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How many T connectors do you have in total?

What Yamaha cable are you connecting? Is there a part# on it? Is it connected directly to the T connector or did you extend it at all?

What style Yamaha gauges do you have installed. Circle, Square, or Rectangle?
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Old 05-16-2018, 08:15 AM
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I currently have 4 T connectors.

The cable i am using is a nema to yamaha style connector (square) (it is home made) blue and white cables only.

I have 2 circle yamaha command link guages. Not yamaha cammand link plus.

So far i have only attempted to connect it to the device port on the command link bus. Is it safe to try connecting it to a bus port?
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Old 05-16-2018, 08:34 AM
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Cable needs to stay plugged into the White Device port. The Bus port will not carry the information properly. I am fairly confident that you need more than just the Blue and White wires connected. Not sure what wires you have connected where on the two connectors but my recommendation would be to purchase a BOE-003 cable off of our website and call it a day. This will plug into the White Device port on your Command Link hub and connect directly to your NMEA2000 T connector. Assuming the Command Link Hub is wired properly between the Gauges and Engine just connect the two end and you have the engine information available on the NMEA2000 network.
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Old 05-16-2018, 10:06 AM
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Originally Posted by [email protected] View Post
Cable needs to stay plugged into the White Device port. The Bus port will not carry the information properly. I am fairly confident that you need more than just the Blue and White wires connected.....
.. just connect the two end and you have the engine information available on the NMEA2000 network.
Of course the Bus port "carries the information properly" but it uses a different model electrical connector, so that's moot.

If you get an opportunity to see the Command Link connector on a Yamaha engine,

you will find it has only the Blue and White wires (the NMEA data pair).


The OP has repeated several times:

Originally Posted by Mtbryantusmc View Post
I get the engine data just fine, but it causes the VHF to fall off the network,
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Old 05-17-2018, 09:53 AM
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Originally Posted by Fwpratt View Post
Of course the Bus port "carries the information properly" but it uses a different model electrical connector, so that's moot.

If you get an opportunity to see the Command Link connector on a Yamaha engine,

you will find it has only the Blue and White wires (the NMEA data pair).


The OP has repeated several times:
We manufacture various cables for this and have been the Authority on linking nmea2000 systems with engines for years. We've seen a thing or two. Thank you for your input though.
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