IEC 62386-104:2019+AMD:2023规定了由电子照明设备的数字信号控制的总线系统。IEC 62386的这一部分适用于其单元之间具有无线或替代有线通信的系统，而不是有线总线系统，其中“无线或替代有线通信”或简称“电信”的含义是不同于IEC 62386-101中描述的有线系统的任何类型的通信网络。 如果电子照明设备属于IEC 61347（所有部分）的范围，则符合IEC 61347（所有部分）的要求，但增加了直流电源。

IEC 62386-104:2019+AMD:2023 specifies a bus system for control by digital signals of electronic lighting equipment. This part of IEC 62386 applies to a system with wireless or alternative wired communication between its units, instead of a wired bus system, where the meaning of “wireless or alternative wired communication”, or in short “telecommunication”, is any type of communication network different from the wired system described in IEC 62386-101.
Where the electronic lighting equipment is covered by the scope of IEC 61347 (all parts), it is in line with the requirements of IEC 61347 (all parts), with the addition of DC supplies.