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Connect Tech COM Express Type 2 Carrier Board - User Manual
Revision 0.03 29
J4 Miscellaneous Power Control Jumpers
Function Miscellaneous Power Control Jumpers
Location J4
Type 2x6 2 mm
Pinout
Position Description
A Force PS_ON
B Power Good when using +12V
Supply
C Reset input to module
D Power Button input to module
E External Battery
F No Connect
Notes:

Position A: If ATX power supplies are used, this signal can be used to override the PS_ON signal from the
Carrier board and simply force the PS_ON signal to 0V. The ATX supply should switch on as soon as it is
powered.

Position B: Used when operating with a +12V power input. This jumper will route 5V to the POWER_OK
pin on the COM Express module.

Position C: SYSTEM RESET input to the COM Express Module

Position D: POWER_BUTTON input to the COM Express Module

Position E: An External Battery could be wired here if the one on the carrier not needed.