NMEA sentences used
B-2 Chapter B: NMEA sentences 98-139768-A
B.1.2 Sentence characteristics and their linkage with port
configuration
The following table lists all the supported sentences. The Encoder/Parser column reflects
the group of sentences which can be configured for a specific port. See Interface settings
on page 4-8.
• Maximum Transmission Interval indicates the time after which a renewed sentence
must be received. Otherwise sentence data will be invalidated.
• Recommended Transmission Interval is the typical value to set up for the sourcing
device.
• Restore Time indicates the time an invalidated sentence shall be received from the same
source with the proper transmission interval until it can be qualified for input.
Encoder/Parser Sentence Maximum
Transmission
Interval
Recommended
Transmission
Interval
Restore
time (s)
ENCODER_NAVTEX output
sentences
NRM, NRX N.A. N.A. N.A.
PARSER_NAVTEX input
sentences
NRM - - -
ENCODER_PROPRIETARY
output sentences
PTHRTSR, PTHRROS,
PTHRNRX
N.A. N.A. N.A.
PARSER_PROPRIETARY
input sentences
PTHRNAR - - -
PTHRMAC - - -
PTHRPRT - - -
PTHRAPT - - -
PTHRTSI - - -
ENCODER_SENSOR output
sentences
ZDA N.A. N.A. N.A.
PARSER_SENSOR input
sentences
RMC 10 min 10 s 10 s
ZDA 10 min 10 s 10 s
ENCODER_ALARM output
sentences
ALR N.A. N.A. N.A.
PARSER_ALARM input
sentences
ACK - - -
Table B-2: Supported sentences and their characteristics
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