Table 8. Status indicators

Indicator

Meaning

 

 

Wireless LAN

Green: The wireless LAN feature is on, and the radio link is

status

ready for use.

 

Blinking green:

 

Data is being transmitted.

 

 

Wireless PAN

Green: Wireless PAN (Bluetooth wireless or Wireless USB) is

status

operational. This indicator is on when Wireless PAN is

R

on and not in suspend mode.

or

 

 

 

Wireless WAN

Green: The wireless WAN is on, and the radio link is ready for

status

use.

 

Blinking green:

 

Data is being transmitted.

 

 

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.

 

 

Caps lock

Green: Caps Lock mode is enabled. To enable or disable Caps

 

Lock mode, press the Caps Lock key.

 

 

Drive in use

Green: Data is being read from or written to the hard disk

 

drive, the diskette drive, or the drive in the Serial

 

Ultrabay Slim device or Serial Ultrabay Enhanced

 

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.

 

 

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.

 

 

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.

 

 

AC power

Green: The computer is connected to the ac power supply.

status

 

 

 

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.

 

 

52ThinkPad T400 and R400Hardware Maintenance Manual

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Image 60
IBM R400 manual Indicator Meaning, Blinking green, Orange, Blinking orange slow, Blinking orange rapid