Lenovo ThinkPad T450 Hardware Maintenance Manual page 48

Table 7. Status indicators (continued)
Indicator
4 6
System status indicator
5
Fn Lock indicator
42
Hardware Maintenance Manual
Meaning
Blinks fast: The computer is entering sleep or hibernation mode.
Blinks for three times: The computer is initially connected to power.
Blinks slowly: The computer is in sleep mode.
On: The computer is on (in normal mode).
Off: The computer is off or in hibernation mode.
Off: The Fn Lock function is disabled. To initiate the special function of each key,
press the corresponding function key directly. To input F1- F12, press the Fn key
and the corresponding function key.
On: The Fn Lock function is enabled. To input F1- F12, press the corresponding
function key directly. To initiate the special function of each key, press the Fn key
and the corresponding function key.