Onwa KF-667 - Manual (Page 8)

NMEA-0183 input(RX+)
NMEA-0183 input(RX
)
NMEA-0183 output(TX+)
NMEA-0183 output(TX
)
GND
3.3V
NC
Temp GND
Temp in
TX
GND TD
TX
NC
NC
GND
TD/Temp
I/O
Fuse(3A)
TX
TX
GND
Power
DC12-24V
-VE
Transducer