Operation Manual

Note: Some models may not have the status indicators
described below.
Indicator Meaning
1 Wireless
status
Green:
The wireless feature (the IEEE 802.11
standard) is on, and the radio link is ready
for use.
Blinking green:
Data is being transmitted.
2 Bluetooth
wireless
status
R
Green:
Bluetooth wireless feature is operational.
This indicator is on when Bluetooth
wireless feature is on and not in suspend
mode.
3 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.
5 Caps lock Green:
Caps Lock mode is enabled. To enable or
disable Caps Lock mode, press the Caps
Lock key.
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 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.
6 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.
(continued)
Product overview
ThinkPad R50e, R51e and R52 Series 55