After getting no correct info from Raymarine, Airmar, or much internet searching I can tell you I got the old ST30 D&S transducers onto the i70s and seatalkng network.
Can’t tell you the model numbers of the old transducers, there is no id or itag anywhere on the boat. But they are the original transducers that came with the ST30 D&S gauges on my 1996 Hunter 336
On my boat I just had to connect the blue and shield wires from depth to blue and black pins on the Itc-5 converter.
For speed I put all three wires to speed pins on itc-5. BUT THEN put 6k resistor across two temp pins on itc-5. REQIRED to make speed work, since I have no temp transducer.
Hope this helps someone, because research was a real pain.
Can’t tell you the model numbers of the old transducers, there is no id or itag anywhere on the boat. But they are the original transducers that came with the ST30 D&S gauges on my 1996 Hunter 336
On my boat I just had to connect the blue and shield wires from depth to blue and black pins on the Itc-5 converter.
For speed I put all three wires to speed pins on itc-5. BUT THEN put 6k resistor across two temp pins on itc-5. REQIRED to make speed work, since I have no temp transducer.
Hope this helps someone, because research was a real pain.
