Unformatted text preview: oes not change the basic technical contents defined in
reference [B2], but the name of the procedure and the presentation of the specification have
been changed so that:
a) COP-1 can be used to transfer any data over any space link in either direction;
b) the specification matches the Open Systems Interconnection (OSI) Basic Reference
Model (references  and ).
The most notable change in presentation is that COP-1 is defined as a procedure in the Data
Link Layer of the OSI Model in this Recommended Standard, whereas it is defined as a
procedure in the Transfer Layer (a sublayer of the Data Link Layer) in reference [B2].
Together with the change in presentation, a few technical details in reference [B2] have been
changed based upon experience in using this procedure. Also, some technical terms in
reference [B2] have been changed in order to unify the terminology used in all CCSDS
Recommended Standards that define space link protocols. These changes are listed in
annex D of this Recommended Standard.
Through the process of normal evolution, it is expected that expansion, deletion, or
modification of this document may occur. This Recommended Standard is therefore subject
to CCSDS document management and change control procedures, which are defined in the
Procedures Manual for the Consultative Committee for Space Data Systems. Current
versions of CCSDS documents are maintained at the CCSDS Web site:
Questions relating to the contents or status of this document should be addressed to the
CCSDS Secretariat at the address indicated on page i. CCSDS 232.1-B-2 Page iii September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 At time of publication, the active Member and Observer Agencies of the CCSDS were:
– Agenzia Spaziale Italiana (ASI)/Italy.
Canadian Space Agency (CSA)/Canada.
Centre National d’Etudes Spatiales (CNES)/France.
China National Space Administration (CNSA)/People’s Republic of C...
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- Spring '14
- Space Exploration, ........., European Space Agency, CCSDS