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Table 8. Status indicators
Indicator Meaning
1 Power on Green: The computer is on and ready to use. This indicator
stays lit whenever the computer is on and is not in
standby mode.
2 Standby status
Green: The computer is in standby mode.
Blinking green:
The computer is entering standby mode or hibernation
mode, or is resuming normal operation.
3 AC power
status
Green: The computer is connected to the ac power supply.
4 Battery status
Green: The battery is charged between 80% to 100% of the
capacity, and being discharged between 0% to 80% of
the capacity.
Blinking green:
The battery is charged between 20% to 80% of the
capacity, and being charged.
Orange:
The battery is charged between 5% and 20% of the
capacity, and being discharged.
Blinking orange (slow):
The battery is charged between 5% to 20% of the
capacity, and being charged.
Blinking orange (rapid):
The battery is charged between 0% to 5% of the capacity.
5 Drive in use
Green: Data is being read from or written to the hard disk
drive, the diskette drive, or the drive in the Optical bay
device. When this indicator is on, do not put the
computer into standby mode or turn off the computer.
Note:
Do not move the system while the green drive-in-use light
is on. Sudden physical shock could cause drive errors.
6 Num lock
Green: The numeric keypad on the keyboard is enabled. To
enable or disable the keypad, press and hold the Shift
key, and press the NumLk (ScrLk) key.
7 Wireless WAN
status
Green: The wireless WAN is on, and the radio link is ready for
use.
Blinking green:
Data is being transmitted.
8 Wireless PAN
status
Green: Wireless PAN is operational. This indicator is on when
Wireless PAN is on and not in suspend mode.
9 Wireless status
Green: The wireless feature (802.11 standard or 802.11n) is on,
and the radio link is ready for use.
Blinking green:
Data is being transmitted.
10 Caps lock
Green: Caps Lock mode is enabled. To enable or disable Caps
Lock mode, press the Caps Lock key.
50 ThinkPad X301 Hardware Maintenance Manual