Furuno FSV-24 - Manual (Page 61)

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3.6 DIP Switch Setting
Processor unit, inside view
3.6.1 CIF2/NMEA2 connector interface selection
The signal format of the CIF2/NMEA2 port at the back of the processor unit can
be set for CIF or NMEA by DIP switch S2-8 on the IFES Board (10P6903). The
default format is OFF (CIF).
DIP switch setting Format
S2-#8: ON NMEA
S2-#8: OFF CIF
S2
IFES Board (10P6903)