Appendix 8: Digital Interface
A8.1 Data Sentences
A8.1.1
Input sentences
ACK, ALR, DBT, DPT, DTM, GGA, GLL, GNS, HDT, MTW, MWV, NRX, OSD, RMC, ROT, THS, TTM,
VBW, !AIVDM, !AIVDO, VHW, VTG, ZDA
A8.1.2
Output sentences
ABM, BBM, DTM, GLL, MWV, RTE, SSD, VSD, WPL
A8.1.3
Data reception
Data is received in serial asynchronous form in accordance with the standard referenced in IEC 61162-2.
The following parameters are used:
Baud rate: 38,400 bps: HDT, THS, !AIVDM, !AIVDO and $AIALR. All other sentences: 4800 bps
Data bits: 8 (D7 = 0), Parity: none, Stop bits: 1
D0
D1
Start
bit
D2
D3
D4
D5
Data bits
D6
D7
Stop
bit
AP-97