Cisco XR 12404 - Manual (Page 36)

Chapter 1 Cisco XR 12404 Router Overview
Consolidated Switch Fabric Card
1-22
Cisco XR 12404 Router Installation Guide
OL-13830-02
• 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 DC-DC converter.
• 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
todd.book Page 22 Monday, March 16, 2009 2:47 PM