David — Joel’s pretty much on the mark. The SeaTalk network you now have is actually SeaTalkNG (not to be confused with the original SeaTalk, now called SeaTalk 1), which is (mostly…) compatible with NMEA2000. Your new VHF uses NMEA0183 (a completely different communications standard), but because of AIS, you need to use the high-speed (38,400 baud) NMEA0183HS to get data from it to your plotter. So you’ll need a high-speed port on the plotter for that.
The T122 will convert the Tacktick wireless signals to NMEA0183, but the lower speed version; but the Zeus T8 only has ONE NMEA0183 port (see page 31 of your manual); so you’ll need to get an NMEA multiplexer like the Noland AM43 to multiplex the two streams (AIS and wireless wind). Then there’s the NMEA0183 stream from your speedo. Do you currently have a depth system? You could add a depth transducer to the Zeus’ “Echo Transducer” port for that. The biggest issue you have is the plethora of new/old gear from many manufacturers, and trying to get them all to talk. You could add a Raymarine ITC-5 to the SeaTalkNG bus, along with a depth/speed/temp triducer, and get all that data into the 21st Century; but it’ll only display currently on the Zeus. But if the current B&G speed and/or depth are ready for retirement, that, along with a new i70 display or two that talk SeaTalkNG, could do the trick. Designing the interface between the SeaTalkNG, NMEA2000 and NMEA0183 buses might be a bit tricky; if I can help, let me know. As far as the old Lowrance cabling goes, you’ll need to abandon it and use the cabling that came with the Zeus. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^( On Apr 12, 2015, at 6:07 PM, Joel Aronson via CnC-List <cnc-list@cnc-list.com> wrote: > Dave > > Partial answers: > > Sea talk ng is NMEA 2000 with a smaller connector. You can get an NG to 2000 > cable. You need the T122. That gets you NMEA 183. If you need NMEA 2000 input > than you need the Actisense converter. another $200. > Airmar makes all the transducers. You can get a NMEA 2000 compatible with > your plotter. > You can also connect the autopilot with an NG to 2000 cable. I recommend you > do it so you can steer to a waypoint. > > Joel > > On Sunday, April 12, 2015, David Knecht via CnC-List <cnc-list@cnc-list.com> > wrote: > Hi all- I need some help and advice on electronics interfacing. Today I > finished installing a Raymarine wheel pilot EV-100 today, so I now have a > Seatalk bus that interconnects that system (which might be irrelevant). When > I bought the boat, it had not wind instruments so I installed a Tacktick > Sensor on the mast and a dual display at the helm, thinking that wireless was > a good idea. I still think it is, but the whole concept seems to be lagging. > I had a Lowrance HD7 at the helm station and I never liked it. In order to > get Sailsteer function for racing, I purchased a Zeus T8 at the recent > Defender sale. Now I am trying to figure out how to put it all together. I > am not concerned at this point about getting the autopilot to talk to the > chart plotter. Perhaps a future project, but I doubt it. I am more > concerned about getting the wind data into the Zeus T8 which apparently I > need for Sailsteer. I might also want to get the hull speed sensor into the > Zeus at some point (old B&G running currently into an old Focus display). I > also have a Standard Horizon GX2150 radio that has AIS functionality. > > So right now there is a double cable (power and 0183) to a single connector > coming through the Edson pedestal that ran into a single connector on the > Lowrance. So what to do? The Zeus has separate inputs for Echo transducer?, > power, video (NMEA 0183), NMEA 2000 and network. > 1. Do I need to cut those cables and run new 0183 and power to the Zeus? Is > there any such thing as a converter plug so I can use the existing runs of > wire? > 2. How do I get the wind data from Tacktick to the Zeus. Presumably, I need > a Raymarine T122. But the guy at defender said I also needed a Actisense > converter. > 3. Can I send multiple 0183 inputs into the Zeus? If I wanted to have the > AIS data, but also add a Raymarine T122 how would those be wired to both go > to the Zeus? Is there such a thing as a hub or multiplexer for 0183 or is > that not needed? > 4. If I wanted to get speed through the water to the Zeus (do I need this?), > I presume I would have to replace my sensor. The T8 manual shows a "Echo > Transducer” going into the first input, but I am having trouble finding > something called that for sale? > 5. I don’t understand the difference, if any, between the B&G NMEA2K and > the Raymarine Seatalk. Are they different or interchangeable? > > I hope I have provided enough information for the experts to understand the > issues. Any advice appreciated. Thanks- Dave > > Aries > 1990 C&C 34+ > New London, CT > > <pastedGraphic.tiff> > > > > -- > Joel > 301 541 8551 > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the bottom > of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >
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