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COMe-bIP6 / Product Specification

3.7 Power Control

Power Supply

The COMe-bIP6 supports a power input from 8.5V - 20V. The supply voltage is applied through the VCC pins (VCC) of the

module connector.

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).

Power Good (PWR_OK)

The COMe-bIP6 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.

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”.

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

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”.

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