This European Telecommunication Standard (ETS) specifies the transmission of MPEG2 Transport Streams (TS) between two DVB interfaces as defined in EN 50083-9 [11] within SDH networks working at the ITU-T Recommendation G.707 [15] hierarchical bit rate of 155 520 kbit/s or at a bit rate of 51 840 kbit/s. The use of any of these bit rates is optional@ if however one or more rates are selected the complete specification applies. The definition of the network aspects of the transmission of MPEG2-TSs is based to the maximum extent on existing international and European standards. The equipment considered in this ETS is the Network Adapter (NA) performing the adaptation between MPEG2-TSs and the interfaces of SDH networks.