Environmental Monitoring And Alarms - Cisco 12404 Installation And Configuration Manual

Chapter 1 Product Overview

Environmental Monitoring and Alarms

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The MBus module on each component monitors that component's environment as
follows.
Line cards and the RP are monitored for temperature by two temperature
•
sensors mounted on each card. The MBus module makes voltage monitoring
through software; for example the +2.5 VDC, +3.3 VDC, and +5 VDC
DC–to–DC converters.
The CSF card is monitored for temperature by two temperature sensors
•
mounted on the card. The MBus module performs voltage monitoring through
software (for example, the +2.5 VDC and +3.3 VDC).
Voltage monitoring the for +5 VDC, for example; is made by the alarm MBus
•
module on the CSF card.
Environmental monitoring includes voltage and current monitoring,
•
temperature monitoring, and sensing for fan power and RPM.
Cisco 12404 Internet Router Installation and Configuration Guide
Maintenance Bus
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