Furuno GP-33 - Manual (Page 9)

SYSTEM CONFIGURATION
vii
When no FI-5002 is connected
Category of Units
Units Category
Antenna Unit GPA-017 Exposed to weather
Receiver Unit GP-33 Protected from weather
Junction Box FI-5002 (Option)
Receiver Unit
GP-33
Antenna Unit
GPA-017
Backbone cable
Navigation
PC
MOB Switch
External Alarm