WBXML1853|2153|238311AccessoriesEU Power Cord UK Power Cord VGA Cable Audio CablePower Indicator / Modes of OperationLED IndicatorLED is off when power is off; LED glows green when power is on. The power management feature ofthe monitor is designed for security surveillance applications. When there is no video, the monitorremains ON to be instantly ready to display video when the source is changed or if a PC changesstate from sleep/standby to active mode. A floating “No Signal” box moves slowly across thescreen until video is restored.