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Power LED
The Power LED is located beside the power button.
Power LED Behavior System State
Off (no light) Off and not powered
Green flash very slow Off but powered
Green on Operating normally
Green flashing slow Suspend
Green flashing fast Black-out Screen
Red on Over voltage shutdown
Red flashing Over temperature
UPS Mode LED
The UPS Mode LED is located between the brightness control buttons.
UPS LED Behavior UPS Battery State
Green flashing fast UPS battery powered
Green on or flashing slow UPS battery charging
Off (no light) UPS battery charged
COM Port LEDs
There is an LED next to both the COM1 and COM2 serial ports
COM Port LED behavior COM Port State
Off (dark) No power applied to COM port
+5V power is applied to pin 9 of COM1 Green
+12V power is applied to pin 9 of COM2 Amber
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