ITU-T M.2120-1997 标准详情
- 标准号：ITU-T M.2120-1997
- 中文标题：
- 英文标题：PDH Path, Section and Transmission System and SDH Path and Multiplex Section Fault Detection and Localization Procedures - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased
- 标准类别：国际电信联盟标准
- 发布日期：1997-04-19
