Konsberg AIS 200, Руководство по установке

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Kongsberg AIS 200 Installation Manual, rev. 2 Appendix B - Digital interface IEC 61162-1
NOTE 5 This is the content of the "binary data" parameter for ITU-R M.1371 message 6,
or the "Safety related Text" parameter for message 12. The first sentence may
contain up to 48 "6-bit" symbols (288 bits). Following sentences may contain up
to 60 valid "6-bit" symbols (360 bits), if fields 4, 5, and 6 are unchanged from the
first sentence and set to null. The actual number of "6-bit" symbols in a sentence
must be adjusted so that the total number of characters in a sentence does not
NOTE 6
e number of bits that
were added to the last 6-bit coded character. This value shall be set to zero when
no "fill bits" have been added. This cannot be a null field.
1
-
nel
n AIS
nit is "using" channel management information when the information is being used to
information contained in this sentence directly relates to the "Initialisation Phase" and "Dual
exceed the "82-character" limit.
To encapsulate, the number of binary bits must be a multiple of six. If it is not,
one to five "fill bits" are added. This parameter indicates th
10.3.3 ACA – AIS regional channel assignment message
An AIS unit can receive regional channel management information four ways: ITU-R M.137
message 22, DSC telecommand received on channel 70, manual operator input, and an ACA
sentence. The AIS unit may store channel management information for future use. Chan
management information is applied based upon the actual location of the AIS unit. A
u
manage the operation of the VHF receivers and/or transmitter inside the AIS unit.
This sentence is used to both enter and obtain channel management information. When sent to
an AIS unit, the ACA-sentence provides regional information that the unit stores and uses to
manage the internal VHF radio. When sent from an AIS unit, the ACA-sentence provides the
current channel management information retained by the AIS unit. The information contained
in this sentence is similar to the information contained in an ITU-R M.1371 message 22. The
Channel operation and Channel management" of the AIS unit as described in ITU-R M.1371.
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