Samyung ENC SI-30A, Manual Instruction

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5 2
⑮ time of “in use” change
The ACA sentence is used both to send channel management information to the transponder
and to obtain channel management information from it.
6-3-4 ACK – Acknowledge alarm
This sentence is used to acknowledge an alarm condition.
$--ACK ,xxx *hh<CR><LF>
①
① alarm ID
6-3-5 ACS - AIS channel management information source
This sentence is used in conjunction with the ACA sentence. It identifies the originator of the
information contained in the ACA sentence and the date and time when the transponder
received that information.
$--ACS ,x ,xxxxxxxxx ,hhmmss.ss ,xx ,xx ,xxxx *hh<CR><LF>
① ② ③ ④ ⑤ ⑥
① sequence number ② MMSI of originator
③ UTC of receipt of information ④ day, month, year
6-3-6 AIR – AIS interrogation request
The interrogation request sentence allows an external to request certain M.1371 messages
from other remote devices via the AIS system.
$--AIR ,xxxxxxxxx ,x.x ,x ,x.x ,x ,xxxxxxxxx ,x.x ,x *hh<CR><LF>
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
① MMSI of interrogated station ② M.1371 message requested from station-1
③ message sub-section
④ number of second message requested from station-1
⑤ message sub-section
⑥ MMSI of interrogated station-2
⑦ number of messages requested from station-2
⑧ message sub-section
When the transponder receives an AIR sentence it sends M.1371 interrogation messages
(type 15) to the addressed station(s) and returns an ABK sentence to the requesting device
indicating that the transmission is complete.