SeaLevel 12009-001-KT, User Manual

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© Sealevel Systems, Inc. 12009-001-KT Manual | SL9679 10/2022
System Operation
Power States
The 12009-001-KT is designed to operate in four Power States as defined by ACPI.
S0 – Fully powered and operational
S3 – Suspended to memory (known as sleep in Windows)
S4 – Suspended to disk (known as Hibernate in Windows)
S5 – Powered down in standby (Windows Shutdown)
The system can transition from S0 to any of the three listed standby states (S3, S4, or S5) by either software
command or an external Power Button (connected to Header P4). The system can then be awoken from
either listed sleep/standby state by holding the Power Button for >3 seconds. The system can also be
awoken from S3 or S4 with a USB input device such as a HID compliant keyboard or mouse.
The fan will remain on after the shutdown of the 12009-001-KT. You may safely
disconnect the fan when the 12009-001-KT is powered down and reconnect it when
ready to use the 12009-001-KT.
For a USB device to be used to wake the computer, it must be present when the computer
enters the sleep state and must remain connected for the duration of the sleep state.
External Power Button
An external power button (connected to Header P5, pins 1 & 2) can be used to turn the system on, shut the
system down or place the computer in sleep states S3 or S4 (depending on OS support and configuration).
The power button can also wake the system up from sleep states S3 or S4.
The power button has a one-second hardware debounce/delay built in to prevent an accidental shutdown. This
delay is always present so the power button must be held for >1 second before system power up, power down,
sleep or wake occurs.
Reset Button (BP1)
Centered below the SSD, the dual stage reset button provides two functions.
1) Holding the switch for at least 1 second and releasing within 5 seconds will perform a hard reset
of the COM Express module only.
2) Holding the switch for at least 5 seconds and releasing will perform a full hardware reset of the
entire system (CPU included).
Any momentary press of the switch for less than 1 second will be ignored.