IEC 62386-333:2018(E) specifies a bus system for control by digital signals of electronic lighting equipment which is in line with the requirements of IEC 61347 (all parts).
ICS
29.140.50 Lighting. Including supply track systems / Системы осветительных электроустановок. Включая системы подачи питания
29.140.99 Other standards related to lamps / Лампы, прочие аспекты