I. B. +  M. A.  DE  LANDE  LONG

Spacecraft Packet Telecommand Architecture

Architecture diagram

This shows the telecommand architecture, based on the ESA Packet Telecommand Standard of 1992 that also specifies the ESA Authentication Unit. The Authentication Sublayer is an optional extra in the Segmentation Layer.

Note: In the current telecommand standards, the architecture is slightly different. For example, the Segmentation Layer is now called the Segmentation Sublayer.

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