Lars Thrane Iridium Certus 200, User & Installation Manual

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LT-4200 User & Installation Manual Rev. 1.00 Serial Interface (RS-422)
Lars Thrane A/S www.thrane.eu Page 75 of 128
Serial Interface (RS-422)
GNSS sentences
The LT-4200 system supports outputting of GNSS sentences encoded as NMEA 0183 via an RS-422 interface
from the LT-4200 system, as illustrated in Figure 90. The LT-4200 system has a built-in GNSS receiver in the
LT-4230 Antenna Unit.
Table 20 presents the supported GNSS sentences by the LT-4200 system. The configuration of the GNSS
sentences are illustrated and described in
GNSS and BAM on page 99.
IMPORTANT : The GNSS receiver of the LT-4200 system is not certified according to IMO performance
standards for GNSS receivers. The LT-4200 system shall not be connected to equipment
where the GNSS receiver interface must be certified.
The GNSS sentences and decoding of these are further documented in App. D GNSS sentences on page 113.
GNSS Sentences
Sentence Baud Rate
4.800 9.600 38.400
DTM X X X
GBS - - X
GGA X X X
GLL X X X
GNS - - X
GRS - - X
GSA X X X
GST - - X
GSV - - X
RMC X X X
VTG X X X
ZDA X X X
Table 20: GNSS sentences
Figure 90: GNSS sentences