HDS Carbon & Trolling Motor Network Question

[bmwnc2]

If I have 2 HDS Carbon 7's at the Helm.
I have 1 HDS Carbon 9 at the bow.

I understand these units each have two ethernet ports on the back of the units and can be daisy chained together, so essentially with 2 Ethernet Cables I could attach all three units.

This would allow them to share Map Cards, Waypoints, the Works.....

Now, I want to Hook these units up to the Trolling motor (Motorguide Tour Pro)

If I hook the 9 at the Bow directly to the Motorguide Via NMEA, will the 7's at the helm that are connected to the 9 at the bow via ethernet also have control of the trolling motor and being able to "navigate" to a certain spot, or will one of those 7 inch units need to be connected into the NMEA network that the 9 and trolling motor now share?


In summary, Can i get by with ethernet connecting all three units and then just one NMEA connection from the 9 to the Trolling motor and have all three units now share connection with the trolling motor? Or do I need to NmEA any unit I want to have control the trolling motor?

[bmwnc2]

Also, do the HDS Carbon 7 have 1 Ethernet port or 2?
The Lowrance website says 2 on the specs, but the image of the back of the unit only shows 1?

[Team Colibri]

HDS 7 has one ethernetport. HDS 9/12/16 has two.
All units you wish networked with the TM has to be connected by NMEA2000.

[grout-scout]

Something I’ve learned while shopping the last few weeks, it’s cheaper to buy the nmea starter kit, than to buy the pieces individually.

[Team Colibri]

And Garmins kit is both cheaper and has softer cables that are easier to thread and place as well. ;)

[grout-scout]

And Garmins kit is both cheaper and has softer cables that are easier to thread and place as well. ;)

I’ll look into them, always looking to save a few $$$.

[bmwnc2]

HDS 7 has one ethernetport. HDS 9/12/16 has two.
All units you wish networked with the TM has to be connected by NMEA2000.

Are you sure the HDS carbon 7 has only one Ethernet port?! If so, the Lowrance website is wrong and another article I read stated the carbons, no matter what size have 2 Ethernet ports .... I ordered two 7s and their on the way.... I guess I’ll see first hand soon enough

[bmwnc2]

HDS 7 has one ethernetport. HDS 9/12/16 has two.
All units you wish networked with the TM has to be connected by NMEA2000.

Nevernind, you know your stuff. I just looked up an official manual on networking the units and it confirms 1 Ethernet port on the 7 inch unit. It just complicates my install a little and is an extra $40 for added Ethernet length.... gosh dang I wish the companies made researching units easier. The Lowrance website Spec sheet is wrong on this unit. Makes you wonder what else is.

[wallyandre]

I just look on Lowrance website and it’s clear, 1 Ethernet port
https://www.lowrance.com/lowrance/ty...live-amer-noxd

[Team Colibri]

As you guys have already figured out, only one ethernetport on HDS 7 (regardless of generation).