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Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
OL-5916-01
Chapter 6 Maintenance
Environmental Monitoring and Reporting Functions
Note If the system reports temperatures in the critical range, you must manually shut down the router. The
processor does not shut down the router automatically.
Displaying Environmental Status Reports
Cisco uBR7100 series routers display warning messages on the console if chassis interface-monitored
parameters exceed a desired threshold. You can also retrieve and display environmental status reports
with the show environment, show environment all, show environment last, and show environment
table commands. Parameters are measured and reporting functions are updated every 60 seconds. A brief
description of each of these commands follows.
Caution To prevent overheating the chassis, ensure that your system is drawing cool inlet air. Overtemperature
conditions can occur if the system is drawing in the exhaust air of other equipment. Ensure adequate
clearance around the sides of the chassis so that cooling air can flow through the chassis interior
unimpeded and exhaust air exits the chassis and is not drawn into the inlet vent of other device.
The show environment command displays the current environmental status of the system. The report
displays parameters that are out of the normal values. No parameters are displayed if the system status
is normal. The example that follows shows the display for a system in which all monitored parameters
are within normal range:
Router# show environment
All measured values are normal
Table 6-1 Typical Processor-Monitored Temperature Thresholds
Parameter High Warning High Critical
Core 120°F (49°C) 129°F (54°C)
Chassis inlet 109°F (43°C) 118°F (48°C)
Chassis outlet 1 114°F (46°C) 123°F (51°C)
Chassis outlet 2 116°F (47°C) 125°F (52°C)
Table 6-2 Typical Power Supply-Monitored Voltage Thresholds
Parameter Low Critical Low Warning High Warning High Critical
+2.5 V +2.35 V +2.39 V +2.69 V +2.72 V
+3.3 V +3.11 V +3.19 V +3.39 V +3.47 V
+5.15 V +4.88 V +5.00 V +5.23 V +5.39 V
+12.3 V +11.53 V +11.77 V +12.76 V +13.05 V
+12.3 V +11.53 V +11.77 V +12.76 V +13.05 V
–12.5 V –10.20 V –11.24 V –13.71 V –14.33 V