Home / Standards / GB/T 31242-2014 GB/T 31242-2014 Active Specifications for single-mode optical for equipment intraconnection 设备互连用单模光纤特性 Standard Type GBT ICS N/A CCS M33 Status Active Issue Date 2014-12-05 Implementation 2015-04-01 Centralized Committee 工业和信息化部（通信） Issuing Authority 工业和信息化部（通信）