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Fuse
Power Management Modes
The Thor VM2 has four power modes: Full On, Standby/Sleep, Hibernate and Off.
Full On Mode
When the Thor VM2 is attached to either vehicle power or an external power supply or is operating from the UPS bat-
tery and the power button is pressed, the Thor VM2 is in the On mode. In this mode, the keypad, touch screen and any
attached peripherals such as a scanner function normally. The display remains on until the display, standby or hiber-
nate timer (if enabled) expires.
When in Full On mode, the status LED is solid green.
If the Thor VM2 is Full On, a press of the power button can be configured to put the unit in Standby. See the Advanced
(page 5-34) tab of the Power control panel.
Standby/Sleep Mode
This mode is called Standby in Windows Embedded Standard 2009. This mode is called Sleep in Windows Embedded
Standard 7 and Windows 7 Professional.
When the standby/sleep timer expires without a primary event occurring, the Thor VM2 transitions to Standby/Sleep
mode. Pressing the Power button exits Standby/Sleep mode and transitions the Thor VM2 to Full On.
When in Standby/Sleep mode, the status LED:
• blinks green very slowly if external power is attached.
• is off if external power is not attached.
By default, power is turned off to the USB port when the Thor VM2 is in Standby/Sleep mode.
The Thor VM2 can be configured to provide power to the USB port in Standby/Sleep using the Options (page 5-21)
control panel.
Note: Because the Thor VM2 with Windows Embedded Standard 7 or Windows 7 Professional cannot transition from
Sleep to Hibernate due to an operating system limitation, Sleep is disabled by default in the predefined power
plans. Power savings are significantly greater using Hibernate.
System Standby/Sleep Wakeup Events
The following events transition the Thor VM2 from Standby/Sleep to Full On Mode:
• Pressing and releasing the Power button
• Pressing or releasing any key on the integrated keypad
• Tapping the touch screen.
Hibernate Mode
When the Thor VM2 enters hibernate mode, all LEDs are off. Pressing the Power button returns the Thor VM2 to Full
On.
The Thor VM2 uses an 8A time delay (slow blow), fuse that is externally accessible and user
replaceable. The fuse is located on the back of the Quick Mount Smart Dock. The fuse is accessed
by unscrewing the cap as indicated.
Should it need replacement, replace with same size, rating and type of fuse:
• Littelfuse 0215008.MXP
• Cooper Bussmann BK1/S506-8-R
• Bel Fuse 5HT 8-R
or equivalent.
Fuse has voltage on it even when power is off. Always disconnect input power before changing the
fuse.