DIN EN 300417-5-1-2002 傳輸和多路復用(TM).設備傳輸功能性的一般要求.第5-1部分:準同步數字系列(SDH)級路徑分層功能 (英文版本核準本 EN 300417-5-1 V 1.2.1 (2001-10) 作為德國標準)
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 5-1: Plesiochronous Digital Hierarchy (PDH) path layer functions (Endorsement of the English version EN 300417-5-1 V 1.2.1 (2001-10) as German Standar