Table
8.
Status
indicators
Indicator
Meaning
1
Wireless
LAN
status
Green:
The
wireless
LAN
feature
is
on,
and
the
radio
link
is
ready
for
use.
Blinking
green:
Data
is
being
transmitted.
2
Wireless
PAN
status
R
or
Green:
Wireless
PAN
(
Bluetooth
wireless
or
Wireless
USB)
is
operational.
This
indicator
is
on
when
Wireless
PAN
is
on
and
not
in
suspend
mode.
3
Wireless
WAN
status
Green:
The
wireless
WAN
is
on,
and
the
radio
link
is
ready
for
use.
Blinking
green:
Data
is
being
transmitted.
4
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.
6
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.
7
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.
8
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.
9
AC
power
status
Green:
The
computer
is
connected
to
the
ac
power
supply.
10
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.
ThinkPad
T400
and
R400
(14.1-inch
widescreen)
51
Summary of Contents for XT904UT
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