Home / Standards / GB/T 33779.2-2017 GB/T 33779.2-2017 Active Guidance for special characteristic of optical fibre—Part 2: Interpretation of OTDR backscattering traces 光纤特性测试导则 第2部分:OTDR后向散射曲线解析 Standard Type GBT ICS 33.180.10 CCS M33 Status 现行 Issue Date 2017-05-31 Implementation 2017-12-01 Responsible Dept 工业和信息化部(通信) Drafting Unit N/A