PeteLivez
Active Member
Evening all. I have two plotters fitted to my boat. I also have two transducers that are not connected just bare wires. So how do I connect them to either or both plotters?
Hi do I connect these transducers?
- Thread starter PeteLivez
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PeteLivez
Active Member
trevbouy
Well-Known Member
Both have NMEA2000 ports. The picture shows the top one has sensor fitted and working.
So in theory connecting the NMEA ports should allow sharing the sensor data between them. Patch lead and terminator.
I don't know anymore than that about the units.
So in theory connecting the NMEA ports should allow sharing the sensor data between them. Patch lead and terminator.
I don't know anymore than that about the units.
MikeCC
Well-Known Member
Would help to have more info on the actual transducers. There is usually a tag on the cable, could be either end.
Are there any other instruments? The one with the red terminals looks like it should connect to a Raymarine speed/log display.
Are there any other instruments? The one with the red terminals looks like it should connect to a Raymarine speed/log display.
Daverw
Well-Known Member
suspect that the transducer needs to output nmea0183, input to the raymarine and then output to garmin
PeteLivez
Active Member
Hermit
Well-Known Member
I think that is a Seatalk NG connection at the back of your plotter so the easiest (but not necessarily cheapest) option may be one of these: An ITC-5 Raymarine iTC-5 Instrument Transducer Converter
MikeCC
Well-Known Member
Probably easier to just get a second hand ST60+ display and connect transducer directly to that.
PaulRainbow
Well-Known Member
You cannot connect that to the A70D, it's ST1 and the plotter is STNG.
You use an adapter or connect it to a ST1 display, but i think those are bad choices.
What is the other transducer ?
Where does the cable marked "sonar" on the A70D go to ? That should give you a proper fishfinder display. If you can get this working you can connect the two plotters together by NMEA 0183 or N2K to share depth data (not the fishfinder display).
Or you could fit a new N2K transducer and a small N2K network. The transducer will send data to both plotters then.
PeteLivez
Active Member
The "sonar" connection goes to a depth transducer that works fine.
PaulRainbow
Well-Known Member
Ah, just noticed that in the first pic. In which case, why do you want to connect a 2nd transducer to the A70D ?
If you connect the NMEA out from the A70D to the NMEA in on the Garmin, you should get depth on the Garmin, but only if the A70D is turned on.
PeteLivez
Active Member
Just because the boat has a water Speed / temp already installed but not connected to anything. Happy to connect it to the Garmin if easier?
PaulRainbow
Well-Known Member
I suspect you mean the first transducer wire pictured, (5 wires) that's Seatalk 1, it will not connect to either plotter directly. You could, as suggested in post #8 , fit a ST60 multi, this could then be connected to the Garmin via NMEA 0183. UsedST60 multi on Ebay is about £200
As previously suggested, the above transducer could be connected to an ITC-5, but that costs £280 and you'd also need a ST-NG network starter kit, so that's an awfully expensive option. Fully working will set you back about £425
Yet another option would be a Garmin GST43 and GST10: Garmin GST 43 Thru-hull Transducer with GST 10 this would need to be fitted in place of the existing Raymarine transducer and then connected to a N2K network, which could include the Raymarine plotter, with a STNG to N2K adaptor cable. Still going to cost you about £260
I don't recognise the cable with the black and blue wires.
PeteLivez
Active Member
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PeteLivez
Active Member
All answers about the two wire types are contained within, many thanks chaps! https://rowlandsmarine.co.uk/content/iTC-5-Installation-instructions-EN.pdf.
