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Unformatted text preview: er Layer Interface N(R) The Next Expected Frame Sequence Number in a CLCW NN(R) Expected_Acknowledgement_Frame_Sequence_Number (the value of N(R)
from the previous CLCW on the same Virtual Channel) N(S) The Frame Sequence Number in the Transfer Frame Primary Header NW FARM_Negative_Window_Width OSI Open Systems Interconnection PW FARM_Positive_Window_Width SS Suspend_State TC Telecommand CCSDS 232.1-B-2 Page A-1 September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 TT Timeout_Type T1_Initial The initial value to which the countdown Timer is set VC Virtual Channel VCID Virtual Channel Identifier V(R) Receiver_Frame_Sequence_Number (the value of N(S) expected to be seen
by FARM-1 in the next Type-AD Transfer Frame on the Virtual Channel) V(S) Transmitter_Frame_Sequence_Number (the value of the Frame_Sequence_
Number, N(S), to be assigned by FOP-1 to the next Type-AD Transfer Frame
to be transmitted) W FARM_Sliding_Window_Width CCSDS 232.1-B-2 Page A-2 September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 ANNEX B
[B1] Procedures Manual for the Consultative Committee for Space Data Systems. CCSDS
A00.0-Y-9. Yellow Book. Issue 9. Washington, D.C.: CCSDS, November 2003.
[B2] Telecommand Part 2.1—Command Operation Procedures. Recommendation for Space
Data System Standards, CCSDS 202.1-B-2-S. Historical Recommendation. Issue 2-S.
Washington, D.C.: CCSDS, (June 2001) August 2005.
[B3] Telecommand Part 2.1—Command Operation Procedures. Recommendation for Space
Data System Standards, CCSDS 202.1-B-1-S. Historical Recommendation. Issue 1-S.
Washington, D.C.: CCSDS, (October 1991) June 2001.
NOTE – Normative references are listed in 1.7. CCSDS 232.1-B-2 Page B-1 September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 ANNEX C
STATE TABLE FORMAT
This annex describes the format used for the FOP-1 and FARM-1 State Tables (tables 5-1
For FOP-1 (table 5-1) or FARM-1 (table 6-1), the State Table shows the various ‘States’
(columns) in which the process might be at a given time, and the ‘Events’ (rows) which
cause ‘Actions’ and/or state changes. The Actions and/or state change appropriate to the
occurrence of a particular Event, when the process is in a particular State, are show...
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