Home / Standards / GB/T 15118-1994 GB/T 15118-1994 Abolished Technical requirement for digital line systems on optical fibre cables at 4×139264 kbit/s 4×139264 kbit/s 光缆数字线路系统技术要求 Standard Type GBT ICS 33.180.30 CCS M33 Status 废止 Issue Date 1994-07-13 Implementation 1995-03-01 Responsible Dept 工业和信息化部（通信） Drafting Unit N/A