BS ISO 18442:2016 pdf free.Space data and information transfer systems一Space link extension一Application program interface for return all frames service.
The Recommended Practice Space Link Extension—Application Program Interface for
Transfrr Services—Core Specca:ion (reference [3]) specifies a C++ API for CCSDS Space
Link Extension Transfer Services. The API is intended for use by application programs
implementing SI_E transfer services.
Reference [3] defines the architecture of the API and the functionality on a generic level, which is independent of specific SLE services and communication technologies. It is thus necessary to add service type-specific specifications in supplemental Recommended Practices. The purpose of this document is to specify extensions to the API needed for support of the Return All Frames (RAF) service defined in reference [2].
1.2 SCOPE
This Recommended Practice defines extensions to the SLE API in terms of:
a) the RAF-specific functionality provided by API components;
b) the RAF-specific interfaces provided by API components. and
c) the externally visible behavior associated with the RAF interfaces exported by the
components.
It does not specify
a) individual implementations or products;
b) the internal design of the components; and
c) the technology used fur communications.
This Recommended Practice defines only interfaces and behavior that must be provided by implementations supporting the Return All Frames service in addition to the specification in reference [3].
The Application Program Interface specified in this document supports three versions of the Return All Frames service, namely:
a) Generation 1 identified by the version number I in the BIND operation. as specified by reference [C2];
b) Generation 2 identified by the version number 2 in the BIND operation. as specified by reference [C3];
c) Generation 3 identified by the version number 4 in the BIND operation, as specified by reference [2].
NOTE — The use of the term Generation’ follows the definition in the API Core Specification (reference [3]) where it is used to c1assi1y all SLE Transfer Services.
Support for Generation I and Generation 2 of this service is included for backward compatibility purposes for a limited time and may not be continued in future versions of this specification. Support for Generation I (i.e., version 1 of the RAF service) implies that SLE API implementations of this specification arc able to interoperate with peer SLE systems that comply with the specification of the Transport Mapping Layer (TML) in ‘Specification of a SIE API Proxy for TCP/IP and ASN. I’, ESOC, SLES-SW-API-0002-TOS-GCI, Issue I . I, February 2001. For Generation 2 and 3 of these services. SLE API implementations of this specification are able to interoperate with peer SLE systems that comply with the specification of the Transport Mapping Layer (TML) in reference [C5].BS ISO 18442 pdf free download.
Tags: Space data and information transfer systems
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