Furuno 1724C - Manual (Page 11)

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Single-unit NavNet system (GD-1720C)
Echo sounder
Heading sensor
External buzzer
GPS receiver
GP-310B/320B
12-24 VDC
Other NavNet unit
(MODEL 1724C etc.)
Rectifier
PR-62
100/110/115/220/230 VAC
1
φ,
50/60 Hz
Display Unit
RDP-148
Remote
Controller
RMC-100
Network sounder
ETR-6/10N
Single-unit NavNet system (GD-1720C)