Home / Standards / GB/T 13503-1992 GB/T 13503-1992 Active Generic specification for digital microwave radio relay communication equipment 数字微波接力通信设备通用技术条件 Standard Type GBT ICS 33.040.40 CCS M34 Status 现行 Issue Date 1992-06-20 Implementation 1993-05-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A