Furuno FSV-30S - Manual (Page 55)

3-15
3.6.2 Choosing echosounder signal
There are two kinds of echosounder signals, AC signal and DC signal. Set the appropriate
jumper on the CONE board as below according to the input port. The default setting is AC.
See page 3-14 for parts location.
Input port Jumper
ES1 J497
ES2/NET J496
Note: The SIGOUT (AC signal) terminal and REC terminal (DC signal) in the output port
are provided for a FURUNO echosounder. Therefore, when using the SIGOUT
terminal, it is not necessary to change the above-mentioned jumper setting.