Lenovo 2901AKU, Hardware Maintenance Manual

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Table 7. Status indicators (continued)
Indicator Meaning
3
Wireless LAN,
Wireless WAN, or
WiMAX status
Green: The wireless LAN feature (the IEEE
802.11 b/g standard, 802.11 a/b/g,
or 802.11n), wireless WAN feature, or
WiMax feature is on, and the radio link
is ready for use, or the data is being
transmitted.
Blinking green: Data is being transmitted (for some
models).
Turn off: Wireless network devices are disabled or
the radio is turned off.
4
Bluetooth wireless
or Wireless USB
status
Green: The Bluetooth wireless feature or wireless
USB feature is on, and the radio link
is ready for use, or the data is being
transmitted.
Blinking green: Data is being transmitted (for some
models).
Turn off: The Bluetooth feature is disabled.
5
Device access
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.
When this indicator is on, do not put the
computer into sleep (standby) mode or
turn off the computer.
Note: Do not move the system while the green device access 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 around the
power-on button whenever the computer
is on.
Blinking green: The computer is in sleep (standby) mode.
Turn off: The computer is off.
7
Serial Ultrabay Slim
device status
Green: A Serial Ultrabay Slim device is installed
and in use.
Blinking green: A Serial Ultrabay Slim device is in the
process of being detached.
Turn off: A Serial Ultrabay Slim device is ready to
be attached or detached.
8
Fingerprint reader
status
Green: The fingerprint reader is ready to swipe.
Blinking green: The fingerprint is being authenticated or
has been authenticated.
Blinking orange:
The fingerprint could not be
authenticated.
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Hardware Maintenance Manual