YD/T 1418-2008.Technical Requirements for Access Network - Multi-Service Access Node(MSAN). 1范围 YD/T...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 1418-2005 接入网技术要求 —— 综合接入系统
YD/T 1418-2005.Technical Requirements for Access Network - Multi-Service Access Node(MSAN). 1范围 YD/T...