Juniper MX2020 Hardware Manual page 395

Copyright © 2015, Juniper Networks, Inc.
NOTE: The fan numbers are stamped into the fan tray sheet metal next to
each fan.
For monitoring the temperature of specific items in the MX2020 router, the output for
the show chassis environment monitored
user@host> show chassis environment monitored
Class Item
Temp CB 0 IntakeA-Zone0
CB 0 IntakeB-Zone1
CB 0 IntakeC-Zone0
CB 0 ExhaustA-Zone0
CB 0 ExhaustB-Zone1
CB 0 TCBC-Zone0
CB 1 IntakeA-Zone0
CB 1 IntakeB-Zone1
CB 1 IntakeC-Zone0
CB 1 ExhaustA-Zone0
CB 1 ExhaustB-Zone1
CB 1 TCBC-Zone0
SPMB 0 Intake
SPMB 1 Intake
Routing Engine 0 CPU
Routing Engine 1 CPU
SFB 3 Intake-Zone0
SFB 3 Exhaust-Zone1
SFB 3 IntakeA-Zone0
SFB 3 IntakeB-Zone1
SFB 3 Exhaust-Zone0
SFB 3 SFB-XF2-Zone1
SFB 3 SFB-XF1-Zone0
SFB 3 SFB-XF0-Zone0
SFB 4 Intake-Zone0
SFB 4 Exhaust-Zone1
SFB 4 IntakeA-Zone0
SFB 4 IntakeB-Zone1
SFB 4 Exhaust-Zone0
SFB 4 SFB-XF2-Zone1
SFB 4 SFB-XF1-Zone0
SFB 4 SFB-XF0-Zone0
SFB 5 Intake-Zone0
SFB 5 Exhaust-Zone1
SFB 5 IntakeA-Zone0
SFB 5 IntakeB-Zone1
SFB 5 Exhaust-Zone0
SFB 5 SFB-XF2-Zone1
SFB 5 SFB-XF1-Zone0
SFB 5 SFB-XF0-Zone0
SFB 6 Intake-Zone0
SFB 6 Exhaust-Zone1
SFB 6 IntakeA-Zone0
SFB 6 IntakeB-Zone1
SFB 6 Exhaust-Zone0
SFB 6 SFB-XF2-Zone1
SFB 6 SFB-XF1-Zone0
SFB 6 SFB-XF0-Zone0
SFB 7 Intake-Zone0
Chapter 23: Maintaining Components
command is similar to the following:
Status Measurement
OK 23 degrees C / 73 degrees F
OK 29 degrees C / 84 degrees F
OK 26 degrees C / 78 degrees F
OK 25 degrees C / 77 degrees F
OK 27 degrees C / 80 degrees F
OK 32 degrees C / 89 degrees F
OK 22 degrees C / 71 degrees F
OK 23 degrees C / 73 degrees F
OK 26 degrees C / 78 degrees F
OK 25 degrees C / 77 degrees F
OK 24 degrees C / 75 degrees F
OK 28 degrees C / 82 degrees F
OK 30 degrees C / 86 degrees F
OK 23 degrees C / 73 degrees F
OK 31 degrees C / 87 degrees F
OK 25 degrees C / 77 degrees F
OK 42 degrees C / 107 degrees F
OK 41 degrees C / 105 degrees F
OK 35 degrees C / 95 degrees F
OK 31 degrees C / 87 degrees F
OK 39 degrees C / 102 degrees F
OK 64 degrees C / 147 degrees F
OK 55 degrees C / 131 degrees F
OK 62 degrees C / 143 degrees F
OK 33 degrees C / 91 degrees F
OK 39 degrees C / 102 degrees F
OK 29 degrees C / 84 degrees F
OK 29 degrees C / 84 degrees F
OK 33 degrees C / 91 degrees F
OK 58 degrees C / 136 degrees F
OK 48 degrees C / 118 degrees F
OK 46 degrees C / 114 degrees F
OK 33 degrees C / 91 degrees F
OK 37 degrees C / 98 degrees F
OK 27 degrees C / 80 degrees F
OK 28 degrees C / 82 degrees F
OK 32 degrees C / 89 degrees F
OK 54 degrees C / 129 degrees F
OK 50 degrees C / 122 degrees F
OK 51 degrees C / 123 degrees F
OK 39 degrees C / 102 degrees F
OK 37 degrees C / 98 degrees F
OK 30 degrees C / 86 degrees F
OK 28 degrees C / 82 degrees F
OK 37 degrees C / 98 degrees F
OK 55 degrees C / 131 degrees F
OK 61 degrees C / 141 degrees F
OK 62 degrees C / 143 degrees F
OK 35 degrees C / 95 degrees F
363