Chapter 1 Cisco XR 12404 Router Overview
Consolidated Switch Fabric Card
•LEDs
–LEDs alert you to a condition in the router. The determination of a critical, major, or minor alarm condition is designed into Cisco IOS XR software running on your route processor.
•CSF MBus Status
–Drivers are provided for MBus OK and Fail indication.
•The 5V MBus power supply
–Consists of a 100 W
•Alarm Status
–The Alarm output function consists of a group of LEDs and their associated drivers connected to an output port on the alarm MBus module. As directed by the software on the route processor, the alarm MBus module on the CSF card activates specific LEDs. The software which drives these LEDs divides them into three levels, Critical, Major, and Minor. The classification of a critical, major, or minor alarm is determined by Cisco IOS XR software running on the route processor. Each of the three LEDs is a dual LED (for failure redundancy).
–The OK/Fail pair of LEDs indicate the status of the alarm MBus: Green indicates that the alarm MBus module is operating properly.
Amber Fail indicates that the alarm MBus has detected an error in itself or with the MBus module.
Power Source Monitoring
The alarm MBus monitors the power supply and signals when there is a condition outside the normal range of operation.
•Power source voltage is not being provided to a component
•A fault exist in the power source or PEM
•A voltage monitor signal is outside the allowable range
•The current monitor signal is outside the allowable range
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