Juniper PTX10003-80C Hardware Manual page 48

Figure 15: PTX10003 Fan Module LEDs
1 Fan module LEDs
—
Table 14 on page 49 describes the fan module LED states.
Table 14: PTX10003 Fan Module LED
Color
Green
Yellow
Under normal operating conditions, the fan modules operate at a moderate speed. Temperature sensors
in the chassis monitor the temperature within the chassis.
The system raises an alarm if a fan module fails or if the ambient temperature inside the chassis rises above
the acceptable range. If the temperature inside the chassis rises above the threshold temperature, the
router shuts down automatically.
1
1
State
On steadily
Blinking
Description
The fan module is operating normally. The system has
verified that the module is engaged, and that the fan is
operating correctly.
An error has been detected in the fan module. Replace
the fan module as soon as possible. Either the fan has
failed or it is seated incorrectly. To maintain proper airflow
through the chassis, leave the fan module installed in the
chassis until you are ready to replace it.
49