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ISO 22671:2021

Current

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

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

30-06-2021

€206.00
Excluding VAT

This document defines the Communications Link Transmission Unit (CLTU) service in conformance with the transfer services specified in reference [1], Cross Support Reference ModelPart 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:

  1. the operations necessary to provide the transfer service;
  2. the parameter data associated with each operation;
  3. the behaviors that result from the invocation of each operation; and
  4. the relationship between, and the valid sequence of, the operations and resulting behaviors.

It does not specify:

  1. individual implementations or products;
  2. the implementation of entities or interfaces within real systems;
  3. 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;
  4. the methods or technologies required for communications; or
  5. the management activities necessary to schedule, configure, and control the Forward CLTU service.

DocumentType
Standard
Pages
143
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
NEN-ISO 22671:2021 Identical

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