Juniper M10i Hardware Manual page 118

M10i Multiservice Edge Router Hardware Guide
92
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Power Supply 2
Power Supply 3
Temp Intake
F
FPC 0
F
FPC 1
F
Lower Power Supplies
F
Upper Power Supplies
F
Upper Power Supplies
F
CFEB Intake
F
CFEB Exhaust
F
Routing Engine 0
F
Routing Engine 1
Fans Fan Tray 0
Fan Tray 1 Fan 1
Fan Tray 1 Fan 2
Fan Tray 1 Fan 3
Fan Tray 1 Fan 4
Fan Tray 1 Fan 5
Fan Tray 1 Fan 6
Fan Tray 1 Fan 7
Fan Tray 1 Fan 8
For further description of the output from the command, see the Junos OS System
Basics and Services Command Reference.
If you receive a temperature alarm:
3.
Check the temperature of each component by issuing the
command. Temperature sensors on the components detect temperatures above
the acceptable range. Verify that the temperature is
Check the room temperature.
Check the airflow and clearance around the chassis. For the fan tray to function
properly, the clearance around the chassis must be sufficient for unobstructed
airflow. See "Clearance Requirements for Airflow and Hardware Maintenance" on
page 43. For a graphic depiction of the airflow, see Figure 13 on page 28.
Check if a faulty fan is causing the temperature to be elevated for one or more
components.
Check the fan tray:
4.
Check the status of the fans by issuing the
Verify that the status is
Absent
Absent
OK
OK
OK
OK
OK
OK
OK
OK
OK
Absent
Absent
OK
OK
OK
OK
OK
OK
OK
OK
show chassis environment
and that the fans are
OK Spinning at Normal Speed
Copyright © 2010, Juniper Networks, Inc.
25 degrees C / 77 degrees
30 degrees C / 86 degrees
28 degrees C / 82 degrees
28 degrees C / 82 degrees
28 degrees C / 82 degrees
28 degrees C / 82 degrees
27 degrees C / 80 degrees
35 degrees C / 95 degrees
32 degrees C / 89 degrees
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
show chassis environment
for each component.
OK
command.
.