Depth sounder transducers connect to fishfinders and chartplotters via proprietary 7-pin or 8-pin circular connectors or standard B-Style transducer sockets carrying piezoelectric transducer signals at 50/77/200 kHz.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | SHIELD | Transducer shield | GND |
| 2 | SIGNAL+ | Transducer signal positive | ADC |
| 3 | SIGNAL- | Transducer signal negative | ADC |
| 4 | TEMP | Temperature sensor NTC | ADC |
| 5 | TEMP_GND | Temperature ground | GND |
| 6 | VCC | Transducer supply 5V | PWR |
| 7 | GND | Ground | GND |
Depth sounder transducers connect to fishfinders and chartplotters via proprietary 7-pin or 8-pin circular connectors or standard B-Style transducer sockets carrying piezoelectric transducer signals at 50/77/200 kHz.