IEC 62386-220:2019 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), with the addition of DC supplies.
This document is applicable to control gear supporting centrally supplied emergency operation as described in EN 50171.
This document does not apply to self-contained emergency lighting control gear. These types of control gear are specified in IEC 62386-202.
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