Enter the show environment command at the router admin prompt to display temperature and voltage
information for each installed card, fan tray, and power module as shown in this example:
RP/0/RSP0/CPU0:router(admin)#show environment
Sat Apr 15 04:57:35.185 UTC
Temperature Information
---------------------------------------------
R/S/I Modules Sensor (deg C)
0/RSP0/*
host Inlet0 31.1
host Inlet1 30.3
host Hotspot0 45.8
host Hotspot1 38.3
host Hotspot2 45.5
host Hotspot3 46.0
0/0/*
ep0 Inlet0 33.1
ep0 Hotspot0 38.5
ep1 Inlet0 33.6
ep1 Hotspot0 37.5
host Hotspot0 43.5
host Hotspot1 37.8
host Hotspot2 45.7
host Hotspot3 41.6
host Hotspot4 45.9
host Inlet0 36.0
Voltage Information
---------------------------------------------
R/S/I Modules Sensor (mV) Margin
0/RSP0/*
host 5.0V 5000 n/a
host VP3P3_CAN 3299 n/a
host 0.75V 750 n/a
host 3.3V_RSP 3299 n/a
host 2.5V_RSP 2499 n/a
Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
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Troubleshooting the Installation
Additional Power Subsystem Troubleshooting Information