Iec 61162-1, Ed. 2, Sentences - Kongsberg Seatex AIS 100 Instruction Manual

Seatex AIS 100 Instruction Manual, rev. 5
NOTE 8

6.6 IEC 61162-1, Ed. 2, sentences

10 = reserved for Wing In Ground
11 to 14 = reserved for future use
15 = not defined (default)
Definition of values 1 to 15 provided by a competent regional
authority. Value shall be set to zero (0), if not used for any regional
application. Regional applications shall not use zero. A null field
indicates that this is unchanged (ref. ITU-R M.1371, Message 1,
Reserved for regional applications parameter).
ACK – Acknowledge alarm
Acknowledge device alarm. This sentence is used to acknowledge an
alarm condition reported by a device.
ALR – Set alarm state
Local alarm condition and status. This sentence is used to report an
alarm condition on a device and its current state of acknowledgement.
DTM - Datum reference
Local geodetic datum and datum offsets from a reference datum. This
sentence is used to define the datum to which a position location, and
geographic locations in subsequent sentences, are referenced.
Latitude, longitude and altitude offsets from the reference datum, and
the selection of the reference datum, are also provided.
Cautionary notes: The datum sentence should be transmitted
immediately prior to every positional sentence (e.g. GLL, BWC, WPL)
which is referenced to a datum other than WGS84, the datum
recommended by IMO.
For all datums the DTM sentence should be transmitted prior to any
datum change and periodically at intervals of not greater than 30 s.
70
External interfaces