IEI Integration TANK-720-Q67 - Manual (Page 58)

TANK-720 Em b e d d e d S ys te m
P a g e 46
3.11.2.2 S witc h to Ba c ku p P o we r
During the operation, the system power will switch from Power 2 to Power 1 automatically
when the following situations occur:
 Power 2 < 10.5V and Power 1 > 9V
 Power 2 is unplugged and Power 1 > 9V
The following flow diagram shows how the power is switched between Power 2 and
Power 1 and their LED statuses.
Figure 3-42: ACC Off: Switch Between PWR1 and PWR2
3.11.2.3 S h u td o wn
The system will shutdown in the following situations:
 Power 2 < 10.5V and Power 1 < 9V
 Press Power button for 6 seconds
The following flow diagram shows the system shutdown process and the LED statuses.
Figure 3-43: ACC Off: Shutdown