Furuno INMARSAT-C FELCOM 18 Operator's Manual page 169

HBT: Heartbeat
$**HBT,x.x,A,x*hh<CR><LF>
1 2 3
1. Configured repeat interval (1 to 999)
2. Equipment status (A=Normal V=System fail)
3. Sequential sequence identifier (0 to 9)
SM1: SafetyNet Message, All Ships/NavArea
$**SM1,A,x.x,xxxxxx,xxx,x,x,xx,xx,xxxx,xx,xx,xx,xx,xx*hh<CR><LF>
1 2 3 4 5 6 7 8
1. MSI status field
2. Unique message number
3. Unique message sequence number assigned by LES originating the message
4. 3-digit numeric ID of LES originating the MSI message
5. Ocean region code
6. Priority code of the MSI message
7. 2-digit service code (fixed)
8. 2-digit presentation code (fixed)
9. Year of message reception (UTC)
10. Month of message reception (UTC)
11. Day of message reception (UTC)
12. Hour of message reception (UTC)
13. Minute of message reception (UTC)
14. 2-digit address code (fixed)
SM2: SafetyNet Message, Coastal Warning Area
$**SM2,A,x.x,xxxxxx,xxx,x,x,xx,xx,xxxx,xx,xx,xx,xx,xx,a.a*hh<CR><LF>
1 2 3 4 5 6 7 8
1. MSI status field
2. Unique message number generated by the receiving EGC terminal
3. Unique message sequence number assigned by LES originating the message
4. 3-digit numeric ID of LES originating the MSI message
5. Ocean region code
6. Priority code of the MSI message
7. 2-digit service code (fixed)
8. 2-digit presentation code (fixed)
9. Year of message reception (UTC)
10. Month of message reception (UTC)
11. Day of message reception (UTC)
12. Hour of message reception (UTC)
13. Minute of message reception (UTC)
14. 2-digit address code (fixed)
15. Coastal warning area
16. Coastal warning subject indicator
9 10 1112 13 14
9 10 1112 13141516
APPX. 6 DIGITAL INTERFACE
AP-35