COMe-cBT6 / Introduction
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3.6. Power Control
3.6.1. Power Supply
The COMe-cBT6 supports a power input from 4.75 - 20V. The supply voltage is applied through the VCC pins (VCC) of the
module connector.
3.6.2. Power Button (PWRBTN#)
The power button (Pin B12) is available through the module connector described in the pinout list. To start the module via
Power Button the PWRBTN# signal must be at least 50ms (50ms ≤ t < 4s, typical 400ms) at low level (Power Button Event).
Pressing the power button for at least 4seconds will turn off power to the module (Power Button Override).
3.6.3. Power Good (PWR_OK)
The COMe-cBT6 provides an external input for a power-good signal (Pin B24). The implementation of this subsystem
complies with the COM Express® Specification. PWR_OK is internally pulled up to 3.3V and must be high level to power on
the module.
3.6.4. Reset Button (SYS_RESET#)
The reset button (Pin B49) is available through the module connector described in the pinout list. The module will stay in
reset as long as SYS_RESET# is grounded. If available, the BIOS setting for “Reset Behavior” must be set to “Power Cycle”.
3.6.5. SM-Bus Alert (SMB_ALERT#)
With an external battery manager present and SMB_ALERT# (Pin B15) connected the module always powers on even if
BIOS switch “After Power Fail” is set to “Stay Off”.
Modules with Intel® Chipset and active Management Engine do not allow to hold the
module in Reset out of S0 for a long time. At about 10s holding the reset button the ME will
reboot the module automatically
Summary of Contents for COMe-cBT6
Page 1: ...www kontron com COMe cBT6 User Guide COMe cBT6 User Guide Doc Rev 2 0...
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Page 27: ...COMe cBT6 Introduction 25 3 11 Module Dimensions All...
Page 62: ...COMe cBT6 User Guide 60 System Information...
Page 65: ...COMe cBT6 User Guide 63 Platform Information...
Page 78: ...COMe cBT6 User Guide 76 South Cluster Configuration...
Page 86: ...COMe cBT6 User Guide 84 View SMBIOS event log...
Page 90: ...COMe cBT6 User Guide 88 7 5 4 Boot...
