Garmin GPSMAP 421 Technical Reference - Page 16

Browse online or download pdf Technical Reference for Marine GPS System Garmin GPSMAP 421. Garmin GPSMAP 421 42 pages. Marine navigation equipment
Also for Garmin GPSMAP 421: Installation Instructions Manual (12 pages), Reference Manual (2 pages), Important Safety Information (48 pages), Installation Instructions Manual (28 pages), Template Manual (2 pages), Declaration Of Conformity (1 pages)

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Garmin GPSMAP 421 Technical Reference
General NMEA 2000 Data Type Requirements
Category
Data Type
Water
Depth
Temperature
Speed
Set
Drift
System
Time Of Day
Date
Timer
Unit Voltage
2
PGN Data Required
128267 - Water Depth
130312 - Temp, 130310 - Envir Param Old, or
130311 - Envir Param
128259 - Water Speed
129026 - COG/SOG, 129029 - GNSS Position,
128259 - Water Speed, and 127250 - Vessel Heading
129026 - COG/SOG, 129029 - GNSS Position,
128259 - Water Speed, and 127250 - Vessel Heading
129026 - COG/SOG and 129029 - GNSS Position
129026 - COG/SOG and 129029 - GNSS Position
None
None
Typical Sender
Depth Transducer
Water Temperature Sensor
Water Speed Sensor
GPS Antenna, Water Speed Sensor, and
Heading Sensor
GPS Antenna, Water Speed Sensor, and
Heading Sensor
GPS Antenna
GPS Antenna
None
None
Technical Reference for Garmin NMEA 2000 Products