Chapter 9 Specification 9-8
9.8 Data format
9.8.1 Output data
Protocol
IEC61162-1(NMEA0183)
Bit rate : 4800
Data bit : 8 bit
Parity : none
Start bit : 1
Stop bit : 1
interval : 1 sec
version : NMEA0183 ver1.5, 2.1, 2.3, 4.0, IEC61162-1
version is selected by installation setting menu. Default value
iNMEA0183 ver4.0.
Data Sentences
Note: The length of each sentence is variable. Make sure that sentences of any length
can be received.
IEC61162-1 No.1 four ports
IEC61162-1 No.2 four ports
VBW :
Dual ground/water speed (JLN-720 outputs ground speed only)
VLW :
Dual ground/water distance（JLN-720 outputs ground distance only）
VTG :
Course over ground and ground speed
Serial Alarm 1 one port
Serial Alarm 2 one port
ALR :
Set alarm state
ALF : Alert sentence
ALC : Cyclic alert list
ARC : Alert command refused
HBT : Monitoring communication enabled/disabled
Dimmer Serial one port
DDC :
Display dimming control
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