Juniper M120 Hardware Manual page 131

Copyright © 2010, Juniper Networks, Inc.
of the remaining fans to maintain proper cooling. A red alarm is triggered when a fan
fails, and a yellow alarm is triggered when a fan tray is removed.
To display the status of the cooling system, issue the
command. The output is similar to the following:
user@host> show chassis environment
Class Item
Temp PEM 0
PEM 1
Routing Engine 0
Routing Engine 1
CB 0 Intake
CB 0 Exhaust A
CB 0 Exhaust B
CB 1 Intake
CB 1 Exhaust A
CB 1 Exhaust B
FEB 2 Intake
FEB 2 Exhaust A
FEB 2 Exhaust B
FEB 3 Intake
FEB 3 Exhaust A
FEB 3 Exhaust B
FEB 4 Intake
FEB 4 Exhaust A
FEB 4 Exhaust B
FEB 5 Intake
FEB 5 Exhaust A
FEB 5 Exhaust B
FPC 2 Exhaust A
FPC 2 Exhaust B
FPC 3 Exhaust A
FPC 3 Exhaust B
FPC 4 Exhaust A
FPC 4 Exhaust B
FPC 5 Exhaust A
FPC 5 Exhaust B
Fans Front Top Tray Fan 1
Front Top Tray Fan 2
Front Top Tray Fan 3
Front Top Tray Fan 4
Front Top Tray Fan 5
Front Top Tray Fan 6
Front Top Tray Fan 7
Front Top Tray Fan 8
Front Bottom Tray Fan 1 OK
Front Bottom Tray Fan 2 OK
Front Bottom Tray Fan 3 OK
Front Bottom Tray Fan 4 OK
Front Bottom Tray Fan 5 OK
Front Bottom Tray Fan 6 OK
Front Bottom Tray Fan 7 OK
Front Bottom Tray Fan 8 OK
Rear Top Tray Fan 1
Rear Top Tray Fan 2
Rear Top Tray Fan 3
Rear Top Tray Fan 4
Rear Top Tray Fan 5
Rear Top Tray Fan 6
Chapter 12: Maintaining M120 Router Hardware Components
show chassis environment
Status Measurement
OK
OK
OK 56 degrees C / 132 degrees F
Absent
OK 52 degrees C / 125 degrees F
OK 47 degrees C / 116 degrees F
OK 44 degrees C / 111 degrees F
OK 41 degrees C / 105 degrees F
OK 40 degrees C / 104 degrees F
OK 42 degrees C / 107 degrees F
OK 44 degrees C / 111 degrees F
OK 44 degrees C / 111 degrees F
OK 48 degrees C / 118 degrees F
OK 46 degrees C / 114 degrees F
OK 46 degrees C / 114 degrees F
OK 52 degrees C / 125 degrees F
OK 45 degrees C / 113 degrees F
OK 46 degrees C / 114 degrees F
OK 49 degrees C / 120 degrees F
OK 42 degrees C / 107 degrees F
OK 41 degrees C / 105 degrees F
OK 53 degrees C / 127 degrees F
OK 39 degrees C / 102 degrees F
OK 40 degrees C / 104 degrees F
OK 41 degrees C / 105 degrees F
OK 42 degrees C / 107 degrees F
OK 43 degrees C / 109 degrees F
OK 41 degrees C / 105 degrees F
OK 39 degrees C / 102 degrees F
OK 39 degrees C / 102 degrees F
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
OK Spinning at high speed
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