IEI Integration TANK-820-H61 v2.00 - Manual (Page 51)

TANK-820 Em b e d d e d S ys te m
P a g e 38
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.