2 shutdown, Figure 3-29: acc on: at mode, Figure 3-30: acc on: atx mode – IEI Integration TANK-820-H61 v1.00 User Manual

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TANK-820 Em b e d d e d S ys te m

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low to high. The system will detect the Power1 and Power2 voltages and prior to use the

corresponding power supply which with higher voltage. The user can choose to use AT

power mode or ATX power mode to control the system. The following flow diagrams show

the boot-up process and the LED status in AT and ATX power modes.

Figure 3-29: ACC On: AT Mode

Figure 3-30: ACC On: ATX Mode

3.9.1.2 S h u td o wn

The system will shutdown in the following situations:

 Power 1 < 9 V and Power 2 < 9 V

 ACC ON signal jump from high to low

 Press Power button for 6 seconds

The following flow diagram shows the system shutdown process and the LED statuses.