Home / Standards / GB/T 13997-1999 GB/T 13997-1999 Active Technical requirement for 2048kbit/s,8448kbit/s,34368kbit/s,139264kbit/s optical line terminals 2048kbit/s、8448kbit/s、34368kbit/s、139264kbit/s光端机技术要求 Standard Type GBT ICS 33.180 CCS M33 Status 现行 Issue Date 1999-08-02 Implementation 2000-03-01 Responsible Dept 工业和信息化部(通信) Drafting Unit N/A