Home / Standards / GB/T 14138-1993 GB/T 14138-1993 Active Requirements for aerial optical fiber cable systems joined to national public telecommunication network 架空光缆通信系统进网要求 Standard Type GBT ICS 33.180.30 CCS M33 Status 现行 Issue Date 1993-02-04 Implementation 1993-08-01 Responsible Dept 工业和信息化部（通信） Drafting Unit N/A