Acrosser Technology AR-V6002FL, User Manual, Page: 33 / 84

Revision: 1.23
33
2.3 Power Subsystem
The AR-V6002 power subsystem converts the external DC input from vehicle to stable
power rails for internal mother board, peripherals, and external I/O. The power subsystem
can be configured by either an onboard switch SW1 or software to support various power
off delay time. There are 9 power modes available for your application.
2.3.1 Definition:
1. Ignition: Ignition is a voltage input to command the power subsystem start a power on
and off cycle. It is treated as ON when voltage is above 1.1 Volts and OFF as voltage
is below 1.1 Volts. The maximum voltage input shall below 32 volts.
2. Remote Switch: Remote switch input is a Open/Close latch switch. It is an optional
function when the power mode is set as Mode 2, 3 and 4. When you set the power
mode as 5, 6 or 7, it works with ignition to power on or off the system. It will be treated
as ON when the switch is CLOSED. It will be treated as OFF when the switch is
OPEN.
3. Soft Off Delay: This is the delay time after ignition or remote switch is OFF till power
subsystem sends a turn off command to the motherboard. If ignition or remote switch
is turned ON again during this period, the power subsystem will cancel the OFF
procedure and back to operating condition.
4. Hard Off Delay: This is the delay time after power subsystem detects the OS has been
shut down till the standby power is turned off.
2.3.2 Power Mode Description

Mode0: ATX function. System will be turned on and off by the remote switch. It
operates as standard PC power button.

Mode1: AT mode, Auto PWRBTN function. The power will be ON immediately
when external power present. The power will be OFF immediately when external
power is disconnected.

Mode2: Smart mode.
A. Power on is controlled by ignition (remote switch does not make any action to
power on) .
B. Power subsystem sends “ON” command to motherboard when ignition is on for
more than 2 seconds.
C. Power subsystem will ignore the status change of ignition after ON command is
sent to motherboard for 3 minutes. After this period, the Power Module will start to
check its status. This can avoid an improper “OFF” process before the OS is