IEC 62386-207:2018 specifies a bus system for control by digital signals of electronic ligthing equipment which is in line with the requirements of IEC 61347 (all parts), with the addition of DC supplies.
This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:

1. fast fade time has been redefined;
2. short circuit and open circuit have been deleted;
3. physical selection has been deleted;
4. dimming curve selection has been moved to a separate part;
5. load increase, load decrease and reference measurement have been moved to a separate part;
6. thermal gear and lamp protection have been moved to separate parts;
7. LED module integrated has been moved to a separate part;
8. link to IEC 62386-102 error bits has been clarified;
9. the following commands have been deleted:

• ENABLE CURRENT PROTECTOR
• DISABLE CURRENT PROTECTOR
• QUERY POSSIBLE OPERATING MODES
• QUERY SHORT CIRCUIT
• QUERY OPEN CIRCUIT
• QUERY CURRENT PROTECTOR ACTIVE
• QUERY CURRENT PROTECTOR ENABLED
• QUERY OPERATING MODE