APPENDIX 2 DIGITAL INTERFACE
AP-11
Output sentences
ABK - AIS addressed and binary broadcast acknowledgment
ACA - See “ACA - AIS regional channel assignment message” on page AP-5.
ACS - Channel management information source
ALC - Cyclic alert list
$**ABK,xxxxxxxxx,x,x.x,x,x,*hh<CR><LF>
1 2 3 4 5
1. MMSI of the addressed AIS unit
2. AIS channel of reception
3. Message ID
4. Message sequence number
5. Type of acknowledgement
$**ACS,x,xxxxxxxxx,hhmmss.ss,xx,xx,xxxx,*hh<CR><LF>
1 2 3 4 5 6
1. Sequence number (0 to 9)
2. MMSI of originator (000000000 to 999999999, NULL)
3. UTC at receipt of channel management information (000000 to 235959, NULL)
4. UTC day (01 to 31, NULL)
5. UTC month (01 to 12, NULL)
6. UTC year (2010 to 2060, NULL)
$**ALC,xx,xx,xx,x.x, aaa,x.x,x.x,x.x,·········,*hh<CR><LF>
1 2 3 4 5 6 7 8 9
1. Total number of sentences for this message (01 to 99)
2. Sentence number (01 to 99)
3. Sequential message identifier (00 to 99)
4. Number of alert entries
5. Manufacturer mnemonic code
6. Alert identifier
7. Alert instance
8. Revision counter
9. Additional Alert entries (see Note)
Note: Alert entry 0 - n: Each alert entry consists of
- Manufacturer Identifier (see ALF Manufactuer Identifier)
- Alert Identifier (see ALF Alert identifier)
- Alert instance (see ALF instance)
- Revision counter (see ALF revision counter)
Alert entry 1
See Note
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