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APPENDIX 4 DIGITAL INTERFACE
AP-15
Output sentences
ABK-UAIS addressed and binary broadcast acknowledgement
ACA-AIS channel assignment message
ACS-Channel management information source
$--ABK,xxxxxxxxx,a,x.x,x,x*hh<CR><LF>
| | | | | |
| | | | | +--- 6
| | | | +----- 5
| | | +------- 4
| | +---------- 3
| +------------- 2
+------------------- 1
1. MMSI of the addressed AIS unit
2. AIS channel of reception
3. Message type
4. Message sequence number
5. Type of acknowledgement
6. Checksum
$--ACA,x,IIII.I, a,yyyyy.y,a,IIII.I,a,yyyyy.y,a,x,xxxx,x,xxxx,x,x,x,a,x,hhmmss.s*hh<CR><LF>
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1. Sequence number, 0 to 9
2. Region Northeast corner latitude
- N/S
3. Region Northeast corner longitude
- E/W
4. Region Southwest corner latitude
- N/S
5. Region Southwest corner longitude
- E/W
6. Transition Zone Size
7. Channel A
8. Channel A bandwidth
9. Channel B
10. Channel B bandwidth
11. Tx/Rx mode control
12. Power level control
13. Not used
14. In-use flag
15. Time of in-used change
$--ACS,x,xxxxxxxxx,hhmmss.ss,xx,xx,xxxx*hh<CR><LF>
6
5
4
3
2
1
1. Sequence number, 0 to 9
2. MMSI of originator
3. UTC at receipt of regional operating settings
4. UTC day, 01- to 31
5. UTC month, 01 to 12
6. UTC year