6 | TROUBLESHOOTING THE SYSTEM |
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This chapter explains how to troubleshoot certain problems with the CoreBuilder® 9400 system. It covers:
■Getting Additional Help
■Diagnosing Problems
■Cleaning Dirty Fiber Optic Ports and Connectors
Getting Additional Help
If you experience system problems that are not addressed in this chapter, contact your network supplier or 3Com Technical Support. Before you call, gather the following information and have it available:
■System serial number
■Maintenance agreement, or date of purchase and warranty information from the last pages of this guide.
■Software revision number
■Brief description of the problem
You can view some of this information in the Administration Console. From the
For additional information and phone numbers, see Appendix D.
Diagnosing Problems
By observing system diagnostics, you can identify and correct problems that might occur when the system powers up.
Power Failures
If the system does not respond when you insert the power cord, see the troubleshooting suggestions in Table 7.
Abnormal LED Activity
The CoreBuilder 9400 system has LEDs that indicate system or port problems. If you see abnormal LED activity, see Table 8 and Table 9 for troubleshooting suggestions.
