Troubleshooting The System; Diagnosing Problems; Power Failures; Abnormal Led Activity - 3Com CoreBuilder 2500 Getting Started Manual

T
ROUBLESHOOTING THE
7
This chapter explains how to troubleshoot certain
problems within the CoreBuilder
how to:
Identify and correct system problems
Perform related maintenance tasks, such as
replacing fuses or cleaning fiber optic ports and
connectors
If you experience system problems that are not
addressed in this chapter, contact 3Com Technical
Support or your service representative. Before you
call, gather the following information and have it
available:
Chassis type and serial number
Maintenance agreement or purchase
date/warranty information
Software revision number
Brief description of the problem
For additional information, see
Support.
™
system. It covers
Appendix E: Technical
S
YSTEM

Diagnosing Problems

By observing system diagnostics, you can identify
and correct problems that might occur at system
power up.

Power Failures

If the system does not respond during power up,
see the troubleshooting suggestions in

Abnormal LED Activity

The system processor contains several status LEDs
that indicate system problems. Also, each module
has status LEDs that alert you to problems with a
module or port. See
troubleshooting suggestions in the event of
abnormal LED activity on the system processor or a
module.
CAUTION: When handling a module, always use a
wrist strap that is connected to a proper ground.
This precaution prevents the module from being
damaged by electrostatic discharge.
Table 7-1.
Table 7-2 or Table 7-3 for