Dear Evangelos,

Actually, I have two new ITC-5 units; one is from Dragonfly, and the other I bought from Amazon. All three units, including the old one supposedly struck by lightning, will work as long as the 12V spur power cable is inserted into it first and then distributes power through the backbone cable into other systems. With this setup, all the LED indicators—1, 2, and 5—will be blinking, and LED indicator 6 will be on (see attached ITC-5-LedIndicator.png). However, if the ITC-5 is getting power through the backbone cable, only SeaTalk button 6 will be on (see attached ITC-5-LedIndicator.png).

I used only one spur power cable to get power from the boat battery. Can you use two spur power cables to supply power to the same system, which is properly terminated by backbone terminators?"

ITC-5-LedIndicatior.png

Raymarine SupportApr 19, 2024 Hello Alex,

This is because the ITC-5 circuitry is damaged due to the lightning strike. It would not surprise me if other faults start appearing now.

Just to clarify. At the moment, do you have two power supplies? One feeding the ITC-5 and one feeding the backbone???

Best Regards Evangelos Angelakis Raymarine UK Product Support Customer Portal: customer.flir.com FAQs: https://teledyneflir.my.site.com/s/ Case number: 00003997

ITC-5-TRANSDUCER-CONVERTER.png

We had an ITC-5 TRANSDUCER-CONVERTER on our Dragonfly-28, connected to a "Wind Vane" and a "DST Transducer". The converted data is displayed on the i70s. It had been working until a thunderstorm struck the harbor, causing the i70s to stop displaying the wind speed, boat speed, and sea depth.

After several months of research, yesterday we finally got the system back to work. This is what we did:

If you are facing the ITC-5, at the bottom right-hand corner from left to right, you will see three female adapters labeled A, B, and C. A and C are for the backbone cable, and B is for the spur cable.

The original 12V power came from a backbone cable into the A connector (which failed to work). We applied a 12V SeaTalk NG Power cable into the B connector and placed a backbone terminator on the A connector. Then, we used a backbone cable through C to feed back the data into the i70S. This brought back our system, with wind and boat speed displayed on the i70S.

Do you have any ideas for changing this hookup to make the system work?

Thanks.

Raymarine SupportApr 18, 2024 Hello Alex,

The way you have wired your system should be ok.

The only thing that was not clear is if the other side of the ITC-5 backbone was terminated.

Generally, the Seatalk ng network will need Only one 12v supply, two backbone terminators - one on each side and a 3Amp or MAX 5Amp fuse depending on the load.

Let me know if you require further assistance.

The system seems to work when the power supply's spur cable is inserted directly into the ITC-5 first. Before lightning struck our area, the ITC-5 was receiving power through a background cable, and it had been working fine for a while.

Any idea why the only way we can get the ITC-5 to work now is by feeding the power spur cable into it first and then through the background cable to pass the power to the rest of the system?

Thanks again!"