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DATA1 to DATA3 ports
These ports connect to the equipment shown in the table below.
DATA1 (7P) DATA2 (6P) DATA3 (7P)
GPS receiver GP-310B/320B,
NMEA equipment
Heading sensor
(ex. SC-60/120)
RS-232C OUT, NMEA 0183 IN,
External buzzer OUT
Note: No sensor can be directly connected to the DATA3 port.
This equipment can receive the following NMEA 0183 format sentences from other
equipment.
• Own ship’s position: GGA>RMC>RMA>GLL
• Ship’s speed: RMC>RMA>VTG>VHW
• Destination waypoint: RMB
• Heading (True): HDT>HDG>HDM
• Course: RMC>RMA>VTG
• Depth: DPT>DBT
• Temperature: MTW
• Time: ZDA
• Other ship’s information: TTM
• Insight satellite information: GSV
• Wind speed and angle: MWV>VWT>VWR
NETWORK port
This port connects other NavNet equipment, with the optional NavNet cable. Available
equipment are shown in the table below.
Radar Plotter Network sounder Other
MODEL1724C/1734C GD-1720C
ETR-6/10
ETR-30N
HUB (used when more
than two NavNet units
are connected.)