Cisco XR 12406 - Manual (Page 157)

4-27
Cisco XR 12406 Router Installation Guide
OL-13831-01
Chapter 4 Troubleshooting the Installation
Troubleshooting the Processor Subsystem
Troubleshooting the Alarm Cards
The Cisco XR 12406 router uses two alarm cards to monitor the status of the
CSCs and SFCs and to indicate various alarm conditions. The alarm cards have
four primary functions:
• Redundant generation of the DC MBus supply voltage for the line cards
• Power system monitoring functions
• OK/FAIL status indication of the CSCs and SFCs
• Hardware implementation of the alarm system relay outputs and indicators
To help isolate a problem, you can visually check the LEDs on the alarm cards.
FABL
RUN
The fabric downloader launch is complete
IOS
DNLD
The Cisco XR IOS software downloads
IOS
STRT
The Cisco XR IOS software launches
IOS
UP
The Cisco XR IOS software runs in DRAM
IOS
RUN
The line card is enabled and ready for use
1. The messages shown do not indicate a specific sequence.
2. Some messages appear only for a fraction of a second; others last several seconds.
Table 4-9 Line Card Alphanumeric LED Display Messages (continued)
LED Display
1
Indications
2