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Unformatted text preview: COP-1
MULTIPLEXER ACCESS POINT
MOST SIGNIFICANT BIT
THE OBSERVED VALUE OF V(R) CONTAINED IN ONE CLCW
TRANSMITTED FRAME SEQUENCE NUMBER
QUALITY OF SERVICE
RECEIVER_FRAME_SEQUENCE_NUMBER CCSDS 202.0-B-2 Page A-2 CCSDS HISTORICAL DOCUMENT November 1992 CCSDS HISTORICAL DOCUMENT
CCSDS RECOMMENDATION FOR TELECOMMAND: DATA ROUTING SERVICE TERMINOLOGY
The top layer of the Channel Service, specified in Reference . This is the layer
immediately below the Transfer layer.
COMMAND LINK CONTROL WORD (CLCW):
The CLCW is the protocol data unit for TC reporting via telemetry from the FARM back to
the FOP. The CLCW resides wholly within the Transfer layer, though it does include a few
parameters describing the readiness state of lower layers, which aid the efficient operation of
the COP. The CLCW does not perform any reporting service for the Segmentation layer.
COMMAND OPERATION PROCEDURE (COP):
A sequence of procedural activities designed to assure the reliable, error-controlled delivery
of a TC Transfer Frame across the Transfer layer. The COP consists of a Frame Operation
Procedure (FOP) operating within the sending end of the layer and a Frame Acceptance and
Reporting Mechanism (FARM) operating within the receiving end of the layer.
COP-1 = Sequential acceptance and retransmission with frame sequence numbering.
A special Type-B TC Frame which carries control instructions in its Data Field to set up the
internal operating parameters of the FARM.
Information that is required to set up a TC System layer to support the handling of
A signal from the Coding layer which becomes “true” to notify the Transfer layer that valid
decoded data octets are being transferred.
A signal from the Coding layer corresponding to Data Start becoming “false”, which notifies
the Transfer layer that no more valid data octets are being transferre...
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