328 Time-Triggered Communication
14.2.3.4 TTEthernet in Orion
In the U.S. under President G.W. Bush, Orion has been planned and started to be
developed under the leadership of NASA as the next-generation Crew Exploration
Vehicle (CEV) replacing the Space Shuttle. Orion is part of the NASA Constellation
program, which comprises several projects, among others the Ares programs, which
are the rockets for lifting Orion and other space vehicles into low earth orbit to go,
e.g., to the international space station, to our moon, and to Mars – at least this has
been the plan. The Orion vehicle consists of two parts, the crew module (CM) and
the service module (SM). The crew module provides all the facilities for housing up
to six astronauts for about two weeks ...