Juniper PTX10008 Hardware Manual page 54

Figure 25: Fan Tray JNP10008-FAN2 and JNP10016 LEDs
1 2 3
1 Fan status LED
—
2 Fan tray controller status
—
Table 10 on page 55 describes the functions of the fan tray LEDs.
Table 10: Fan Tray LEDs on a PTX10000 Router
Name
Fan status
Color State
Green On steadily
Green Blinking
Yellow Blinking
None Off
3 SIB status (SIB 0 through SIB 2 for the left fan tray
—
and SIB 3 through 5 for the right fan tray).
Description
All fans are operating normally. The system
has verified that the fan tray is engaged,
that the airflow is in the correct direction,
and that all fans are operating correctly.
The beacon feature is enabled. This feature
is enabled using the request chassis
beacon command.
An error has been detected in one or more
fans in the fan tray. Replace the fan tray
as soon as possible. Either the fan has
failed or it has become disconnected. To
maintain proper airflow through the
chassis, leave the fan tray installed in the
chassis until you are ready to replace it.
The fan is not receiving power from the
fan tray controller.
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