Embedded Controller; Embedded Controller Leds; Power And Battery Indicators - Kontron Revolution plus User Manual

Embedded Controller

The Embedded Controller (EC) in the ReVolution supervises its "power state" by monitoring incoming power levels
and temperature, making decisions for safe operation. The EC also interacts with the system BIOS and informs the
APM manager with power-related messages. When a fault condition occurs, the EC will change the power state and
indicate the fault by flashing a series of codes on the power LED:

Embedded Controller LEDs

Refer to the "ReVolution at a Glance" section for LED locations.
Symbol
You must clear the active fault before the EC will continue operation. The EC is continuously on when power is
applied to the ReVolution. It is field-upgradeable.
The EC will perform a power-down override, which forces the ReVolution to turn off, when a user presses the power
on/off button continually for 4 seconds.
Note: The Embedded Controller is active whenever there is a DC power source (external or battery) present, even
with ReVolution power off. If the ReVolution is stored with one battery installed, the EC will discharge a fully charged
battery in approximately 27 days. Kontron recommends that the ReVolution be stored for extended periods with no
battery installed.

Power and Battery Indicators

Power State
OFF
On, Charging
Low Battery
Running on battery
Running on AC not charging
Battery Malfunction
Sleep mode battery
Sleep mode AC
Slow blink is defined as - 0.5 Hz, 50% duty cycle, i.e. ON for one second, OFF for one second
Fast blink is defined as - 1 Hz, 50 % duty cycle, i.e. On for 500 ms, OFF for 500 ms
ReVolution User Manual 1.00
Name
NumLock
Caps Lock
Battery Indicator
Power
Hard Disk Drive Activity
LAN Activity
Wireless Activity
Mail
Power LED
OFF
ON
OFF
OFF
ON
Fast Blink
Slow Blink
OFF
Purpose
Indicates NumLock state. LED is on when NumLock
is active.
Indicates capital letter state. LED is on when Caps
Lock is active.
Indicates battery status
Indicates AC power attached
Indicates when hard drive is accessed.
Indicates embedded LAN activity.
Future Use
Future Use
Battery Indicator LED
OFF
Slow Blink
Fast Blink
ON
OFF
Fast Blink
OFF
Slow Blink
02/18/05 57