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A Battery #1 12/24VDC connection (Fuse with 5 amp fuse - supplies power to the instrument).
B NMEA 0183 #1A and NMEA 0183 #1B inputs (from GPS, Depth Sounder, Wind Sensor, Etc.).
C NMEA 0183 #3A and NMEA 0183 #3B inputs (from GPS, Depth Sounder, Wind Sensor, Etc.)
D Connect to engine temperature sender. Both American and European senders supported.
E Connect to sea water temperature sensor usually located in speed/log transducer.
F Connects to engine RPM sensor such as alternator tacho output or gear tooth sensor.
G NMEA 0183 #2A and NMEA 0183 #2B inputs (from GPS, Depth Sounder, Wind Sensor, Etc.)
H Connects to speed output from speed/log transducer.
I NMEA 0183 #4A and NMEA 0183 #4B inputs (from GPS, Depth Sounder, Wind Sensor, Etc.)
J Connect to signal ground from speed log, oil pressure sender, fuel sender, etc.
K RS232 input from computer used for uploading and downloading new display configurations.
L RS232 output to computer used for uploading and downloading new display configurations.
M Battery #2 6/12/24VDC connection.
N Connect to engine oil pressure sender. Both American and European senders supported.
O Connect to fuel tank level sender. Both American and European senders supported.
P AUX Input #1 - Connect to trim angle sender, 2nd pressure/ tank level or third temp. sender.
Q Connect to a switch and +12/24VDC to remotely turn ON/OFF the instrument’s backlights.
R AUX Input #2 - Not currently used - for future use.
S AUX Input #3 - Not currently used - for future use.
T AUX Output #1 - Not currently used - for future use.
U AUX Output #2 - Not currently used - for future use.
V Battery #3 6/12/24VDC connection.
W AUX Output #3 - Not currently used - for future use.
X Connect to battery power ground bus.
Figure 3 - Cable Connections