1-16 PCWS 2015 Setup Guide - 2nd Edition
What is the PCWS 2015
Power Management States
Power Management States
Introduction
This section introduces the PCWS 2015 power management states.
References to power management states are specified in bold capital letters,
e.g., NOPOWER, and ON. See chapter 3 for more information about operating
the PCWS 2015.
UNPLUGGED
• The AC power cord is not connected to a wall outlet. This state is also
referred to as “ACPI G3 Mechanical Off.”
• The Operator LED is Off.
• The Operator LCD is blank.
The workstation can be safely disassembled when in this state.
NOPOWER
• The AC power cable is attached, but the operating system and applications
are not running. RAM contents are undefined.
• The Operator LED is Off.
• The Operator LCD is Blank.
This is the ACPI S5 ‘soft-off’ state where the power supply remains active,
delivering minimal power to several key circuits in order to detect the
power-button, recovery button or Wake-On-Lan event.
It is not safe to disassemble the workstation when in this state. Power supply
components remain energized, presenting a shock hazard. Always remove the AC
power cord from the IO Panel before disassembling the PCWS 2015.
ON
• The Operating System and POS application are operating. RAM contents
are maintained.
• The Operator LED is solid Green.
Standby and Hibernate
Standby is available with POSReady and the more advanced Hibernate is
available with Windows 7 Professional. Both power saving modes are
supported at the hardware level, but may not be supported in some POS
applications.
Last Power State Retention
The PCWS 2015 retains the last power state (ON or NOPOWER) in non-volatile
memory. In BIOS Setup, the Power Failure Restoration field in the Advanced -
Special Configuration menu determines how the unit behaves when AC power
to the workstation fails and then returns.
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