ISO 22671:2021
Current
The latest, up-to-date edition.
Space data and information transfer systems — Space link extension (SLE) — Forward communications link transmission unit (CLTU) service specification
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English
30-06-2021
This document defines the Communications Link Transmission Unit (CLTU) service in conformance with the transfer services specified in reference [1], Cross Support Reference Model—Part 1: SLE Services. The Forward CLTU service is a Space Link Extension (SLE) transfer service that enables a mission to send Communications Link Transmission Units (CLTUs) to a spacecraft.
This document defines, in an abstract manner, the Forward CLTU service in terms of:
- the operations necessary to provide the transfer service;
- the parameter data associated with each operation;
- the behaviors that result from the invocation of each operation; and
- the relationship between, and the valid sequence of, the operations and resulting behaviors.
It does not specify:
- individual implementations or products;
- the implementation of entities or interfaces within real systems;
- the methods or technologies required to radiate data to a spacecraft and to acquire telemetry frames from the signals received from that spacecraft for extraction of the Operational Control Field;
- the methods or technologies required for communications; or
- the management activities necessary to schedule, configure, and control the Forward CLTU service.
| Committee |
ISO/TC 20/SC 13
|
| DocumentType |
Standard
|
| Pages |
143
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN-ISO 22671:2021 | Identical |
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