Wake up activities, Table 3-22, Wake up activities and conditions – ADLINK ReadyBoard 910 User Manual
Page 45
Chapter 3
Hardware
ReadyBoard 910
Reference Manual
39
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state is a hibernate or suspend-to-disk state (S4).
In this state, no internal operations take place, except for the internal RTC. This includes no activity for
the CPU, CD-ROM, or hard disk drives. The ReadyBoard 910 appears to be off, including the external
Power-On LED if connected. Your system will take longer to wake-up in this sleep state, however, since
your data is saved to the disk, it is more secure and should not be lost in the event of a power failure.
To enter a hibernate or suspend-to-disk state, the ReadyBoard 910 must be fully powered on while
the OS transitions the ReadyBoard 910 into this sleep state (S4) under user control.
To exit this sleep state, typically pressing the power switch for less than 4 seconds (default) will
restore full operation.
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state is the normal power off or shutdown (S5).
All activity stops, except the internal clock, if there is a backup battery installed. Removing the power
cord from the power source ensures all activity is stopped, except the internal clock.
To go to a fully powered down state, the ReadyBoard 910 must either be powered on, or in a
sleep state, and then the Power On/Off switch is pressed for more than 4 seconds.
To go to a fully powered up state, press the power switch for less than 4 seconds (default) and
full operation is restored.
The OS may provide additional programming features to change the activation time for each state, and to
shutdown or transition the ReadyBoard 910 at certain times, depending on the way the OS interface is
programmed. Refer to the OS vender’s documentation for power management under the ACPI standard.
Wake Up Activities
The wake up events listed in
can be used to wake up the ReadyBoard 910 from any of the
supported sleep states mentioned above.
NOTE
Some operating systems use the keyboard, mouse, Wake-on-Ring (serial port),
and Wake-on-LAN (Ethernet port) as an activity to wake up the system from a
sleep state. Refer to
for the wake up activity conditions supported by
the ReadyBoard 910.
Table 3-22. Wake Up Activities and Conditions
Signal/Device
Condition
Power-On Button
If the Power-On button is pressed, the system will wake up from any of the
sleep states.
Ethernet Ports (2)
(LAN Ports)
The system will wake from one of the sleep states through direct addressing
or magic packets.
PS/2 Keyboard &
Mouse
If you use a PS/2 keyboard or mouse, any activity from the keyboard or
mouse could wake the system.
USB Devices
If you use a USB keyboard or mouse instead of a PS/2 device, the USB
device could wake the system.
Serial Ports (2)
If Wake On Ring is [Enabled], then Serial Ports 1 and 2 can be used to wake
the system.