ETSI ETS 300 337-1997 传输和复用(TM).在ITU-T建议G.702多层速率2,048 kbit/s,34 kbit/s和 139,264 kbit/s上传输的各种信号(包括异步转移模式(ATM)信元和同步数字体系(SDH)单元)的一般框架结构
Transmission and Multiplexing (TM); Generic Frame Structures for the Transport of Various Signals (Including Asynchronous Transfer Mode (ATM) Cells and Synchronous Digital Hierarchy (SDH) Elements) at the ITU-T Recommendation G.702 Hierarchical Rates of 2