NCR RealPOS 40 - Page 23

Chapter 1: Product Overview 1-15
Peripherals:ACPIdefinespowerstatesforperipheralswhichareseparatefromthe
systempowerstate.ThedevicepowerstatesrangefromD0(fully‐on)toD3(off)Itis
theresponsibilityofthedriverdeveloperforeachperipheraltodefineandsupport
theavailablepowerstates.
Power State
S0
Working
S1
Standby
S2
**S3
Suspend to
RAM
S4
Hibernate
**S5
Soft Off
Supported: Y / N
Y Y
N
Y Y Y
Description
Fully
Functional
-Video back
light off
-HDD off
-Cache Flush
- CPU halted
-Video back
light off
-HDD off
-Cache Flush
-Memory in
slow refresh
-CPU halted
-Video back
light off
-HDD off
-Cache Flush
-Memory data
to HDD
- CPU halted
OFF
Note:Some devices
remain powered by
standby voltage
(LAN, USB) to
allow wake-up
Power Supply Status
On On
Powered
Down*
Powered
Down*
Powered Down*
Power Consumption*
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Wake Options:
Power Switch
N/A Y
Y Y Y
PS/2 Keyboard
N/A Y
Y Y Y
PS/2 Mouse
N/A Y
N N N
USB Keyboard
N/A Y
Per O/S N N
USB Mouse
N/A Y
Per O/S N N
LAN (magic packet)
N/A Y
Y Y Y
RTC Alarm
N/A Y
Y Y Y
Serial Port (RI)
N/A Y
Y Y Y
Note: Power consumption based on the following configuration with no peripherals Intel Atom 270 ,512MB DIMM, HDD
*Maintains small voltage to support wake circuits)
**The external power supply is ON while in S3-S5. The motherboard shuts down all power circuits except for a small voltage to
support wake circuits. Power to the 24V USB printer port and the Cash drawer is also disconnected while in S3-S5