Troubleshooting; Troubleshooting Using The Module Status Led - 3Com CoreBuilder 5000 User Manual

5

Troubleshooting

Using the Module
Status LED
T
ROUBLESHOOTING
This chapter describes troubleshooting procedures for the 3Com
™
CoreBuilder 5000 12-Port 100BASE-TX Workgroup FastModule.
Information on troubleshooting can assist you in verifying the module
operation.
This chapter contains the following sections:

Troubleshooting Using the Module Status LED

Troubleshooting Using the Port Status LEDs
Obtaining Technical Assistance
In certain situations, the module status LED may not light.
outlines possible causes and some solutions for troubleshooting the
Module Status LED.
Table 5-1 Module Status LED Troubleshooting
LED State Possible Cause
Off No power to hub
The hub does not have
enough available power for a
new module installation
The 12-port 100BASE-TX
module is faulty
Blinks Failed module diagnostics
Corrective Action
Check the controller module power
LEDs.
Add another power supply to the
hub.
Use the SHOW POWER BUDGET
management command to ascertain
available power in the hub. See the
CoreBuilder 5000 Distributed
Management Module Commands
Guide for details.
Try a different 12-Port 100BASE-TX
module.
Replace the failed module.
Table 5-1