Cisco 7401ASR Installation And Configuration Manual page 66

Functional Overview
If the environmental status is not normal, the system reports the worst-case status level. Following is a
sample overvoltage warning:
Router# show environment
Warning:+3.45 V measured at +3.27 V
The show environment last command retrieves and displays the NVRAM log, which shows the reason
for the last system shutdown (if the shutdown was related to voltage or temperature) and the
environmental status at that time. Air temperature is measured and displayed, and the DC voltage
supplied by the power supply is also displayed.
Following is sample output of the show environment last command:
Router# show environment last
chassis inlet
chassis outlet 1
chassis outlet 2
chassis outlet 3
+3.45 V
+5.15 V
+12.15 V
-11.95 V
last shutdown reason - power supply shutdown
The show environment table command displays the temperature and voltage thresholds for each
temperature sensor and for each monitored status level. These thresholds are related to those listed in
Table 3-1
Following is sample output of the show environment table command for a Cisco 7401ASR router:
Router# show environment table
Sample Point
chassis inlet
chassis outlet 1
chassis outlet 2
chassis outlet 3
+3.45 V
+5.15 V
+12.15 V
-11.95 V
System shutdown for chassis outlet 1 58C/136F
System shutdown for chassis outlet 3 65C/149F
Note Temperature ranges and values are subject to change.
The show environment all command displays an extended report that includes temperature readings and
voltage readings. The show environment all command also displays a report showing which power
supply slots are occupied and which are empty.
Following is sample output of the show environment all command.
With AC power supply installed:
Router# show environment all
Power Supplies:
Cisco 7401ASR Installation and Configuration Guide
3-6
previously measured at 30C/86F
previously measured at 28C/82F
previously measured at -1C/31F
previously measured at -1C/31F
previously measured at +3.27
previously measured at +5.01
previously measured at +12.34
previously measured at -12.41
and Table 3-2. The display also lists the shutdown threshold for the system.
LowCritical
+3.26
+4.86
+11.39
-9.52
Power supply 1 is Internal AC Power Supply. Unit is on.
Power supply 2 is unmeasured.
LowWarning HighWarning
40C/104F
43C/109F
75C/167F
50C/122F
+3.34 +3.55
+4.99 +5.31
+11.67 +12.62
-10.73 -13.16
Chapter 3 Starting and Configuring
HighCritical
50C/122F
53C/127F
75C/167F
60C/140F
+3.63
+5.43
+12.91
-14.38
OL-5419-01 B0