Oracle MICROS 820 - Power Management States; Power Management State Changes

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Power Management States
The following power management states are available for the Workstation 820:
• Unplugged
The Advanced Configuration and Power Interface (ACPI) specification refers to the
unplugged state as mechanical off.
In this state:
– The AC power cord is not connected to a wall outlet.
– The power button LED is off.
– The LCD is blank.
• NOPOWER
The ACPI specification refers to the NOPOWER state as S5, or a soft-off state in which
the power supply remains active but delivers minimal power to key circuits to detect a
power button or wake-on-LAN event.
In this state:
– The AC power cord is connected to a wall outlet.
– The operating system and applications are not running.
– The RAM contents are undefined.
– The power button LED is white and fades in and out.
– The LCD is off.
• ON
In this state:
– The operating system and POS application are in operation.
– The RAM contents are maintained.
– The power button LED is white.
• ON, in BIOS utility
In this state:
– The BIOS configuration utility is in operation.
– The power button LED is white and blinks off and on.
Power Management State Changes
The following table describes the scenarios in which the power management state changes
for the Workstation 820.
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