Full Description ADOPTED_FROM:EN 16603-50-11:2020 The scope of the SpaceFibre standard is the detailed specification a very high-speed serial link protocol stack reaching from link level Quality layer down to the Physical layer. The higher layers like packet, network and higher level protocols are the same as for SpaceWire and specified in the respective standards ECSS-E-ST-50-12C and ECSS-E-ST-50-51C to 53C.