DL/Z 634.14-2005
远动设备及系统.第1-4部分:总则.远动数据传输的基本方面及IEC 60870-5与IEC 60870-6标准的结构
Telecontrol equipment and systems - Part 1-4: General considerations - Section 4: Basic aspects of telecontrol data transmission and organization of standards IEC 60870-5 and IEC 60870-6