ABB i-bus ® KNXProduct OverviewAC/S 1.x.1 | 2CDC508198D0211 Rev. A 253.4.3 Operating and display elementsButton/LED Description LED indicatorAssignment of the physical KNXaddressOn: Device is in KNX programming modeON Off: No supply voltage (24 V or PoE) availableOn: System initializedFlashing slowly (1 Hz): System starting upFlashing quickly (4 Hz): ErrorLAN/LINK On: Supply voltage and Ethernet connectionavailableFlickering: Data traffic via LANKNX telegram On: Supply voltage and KNX connection availableFlickering: Data traffic via LANReset (behind label carrier) Press for less than 2 seconds: no reaction.Press for 2 to 10 seconds: device restart. Retainsconfiguration and last states.Press for more than 10 seconds: factory reset.Deletes configuration and all states.Table 8: Operating and display elementsNoteDevice restart and factory reset are only possible if the bus voltage and supply voltage are applied.NoteA firmware update cannot be undone using the factory reset.
