Kontron ETX-LX2, Manual

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13 Appendix F: Limitations
Kontron User's Guide ETX®-LX2 67
13.3 Workaround for drop in supply voltage in AT/single supply mode
In some error case were the level of the power supply breaks down for shorter than 100ms, the module
will not wake up again.
If the power supply on the baseboard is not able to avoid this error case, the module can be waken up
after the supply voltage is valid again by generating a pulse on the power button signal (pin X4.7). This
pulse has to be low active generated by an open drain circuit with a duration of at least 1ms.