Home / Standards / YD/T 1247-2002 YD/T 1247-2002 Abolished 光纤模拟传输用光发射组件技术条件 Standard Type YD ICS N/A CCS N/A Status Abolished Issue Date 2002-12-10 Implementation 2002-12-10 Centralized Committee 信息产业部 Issuing Authority 信息产业部