22 Thor VM1A Vehicle-Mounted Computer
Shift LED
Ctrl LED
Alt LED
System LEDs
SYS (System Status) LED
LED Behavior Status
Solid Green
• Indicates the keypad is in Caps Lock mode. Caps Lock mode is
invoked until canceled.
• Pressing the Orange key followed by the Shift key places the
system in Caps Lock mode.
• To exit Caps Lock mode, press the Shift key again.
Off Neither Shift or Caps Lock mode is invoked.
LED Behavior Status
Solid Green
• Indicates the Ctrl modifier key is active. Ctrl mode is invoked for
the next keypress only.
• Pressing the Ctrl key a second time exits this modifier mode and
turns off the LED.
Off Ctrl mode is not invoked.
LED Behavior Status
Solid Green
• Indicates the Alt modifier key is active. Alt mode is invoked for
the next keypress only.
• Pressing the Alt key a second time exits this modifier mode and
turns off the LED.
Off Alt mode is not invoked.
SYS (System Status) LED
UPS (Uninterruptible Power Supply) LED
LED Behavior System State
Solid White
•On
• On, but in Sleep Mode
Blinking White
• CPU temperature is less than -20°C. The unit must be moved to
an environment warmer than -20°C before it will boot up.