User's Manual

92
A.5.3 ACK – Acknowledge Alarm
This sentence is used to acknowledge an alarm condition reported by a device.
$--ACK,xxx*hh<CR><LF>
Field No.
Format
Description
Remark
1
xxx
Unique alarm number (identifier) at alarm source
A.5.4 AIQ - Query Sentence
This sentence is used to inquire AIS sentence information.
$--AIQ,c—c*hh<CR><LF>
Field No.
Format
Description
Remark
1
c—c
Support query sentence of ACA, EPV, SSD, VSD, TXT.
A.5.5 AIR – AIS Interrogation Request
This sentence supports ITU-R M.1371 messages 15 and 10. It provides an external application with
the means to initiate requests for specific ITU-R M.1371 messages from AIS unit.
$--AIR,xxxxxxxxx,x.x,x,x.x,x,xxxxxxxxx,x.x,x*hh<CR><LF>
Field No.
Format
Description
Remark
1
xxxxxxxxx
MMSI of interrogated station 1
2
x.x
ITU-R M.1371 message requested from station-1
3
x
Message sub-section
ignored
4
x.x
Number of second message requested from station-
1
5
x
Message sub-section
ignored
6
xxxxxxxxx
MMSI of interrogated station-2
7
x.x
Number of messages requested from station-2
8
x
Message sub-section
ignored
A.5.6 BBM – AIS Broadcast Binary Message
This sentence supports generation of ITU-R M.1371 binary messages 8, 14, 25, and 26. This provides
the application with a means to broadcast data, as defined by the application only.
!--BBM,x,x,x,x,x.x,s—s,x*hh<CR><LF>
Field No.
Format
Description
Remark
1
x
Total number of sentences needed to transfer the message
2
x
Sentence number
3
x
Sequential message identifier
4
x
AIS channel for broadcast of the radio message
5
x.x
ITU-R M.1371 Message ID
6
s—s
Encapsulated data
7
x
Number of fill-bits