7External and internal structureFront panelFigure 2-1. Front PanelFront panel LED indicatorsEnclosure power supply LED descriptions are shown in the followingtable .LED State IndicationPower StatusLED(left LED)Yellow(off)No CMM or Not ReadyGreen Power On or Standby PowerGreen(Flashing)Power OverloadRed Power Supply Failure(with AB460 F1 blades included)