Furuno GP-33 - Manual (Page 8)

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SYSTEM CONFIGURATION
Standalone system
CAN bus network
When optional junction box FI-5002 is connected
Navigation
Receiver Unit
GP-33
Antenna Unit
GPA-017
PC
12-24VDC
MOB Switch
External Alarm
Standard configuration is shown with solid line.
Receiver Unit
GP-33
Antenna Unit
GPA-017
FI-504/507
12 VDC
Junction Box
FI-5002
Navigation
PC
MOB Switch
External Alarm