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2 - 12 ONline Ethernet Bridge Module Installation and Operation Guide
Note: The loopback connector must be attached to the AUI port
or the self-test will not function properly.
If these alternatives fail to fix the problem, your unit is malfunctioning.
Repack it in the shipping carton and contact your 3Com representative for
corrective action.
5. Once the self-test is successful, remove the loopback connector and
continue with the installation procedure.
Table 2-4. Power-Up Problem Resolution
Problem Possible Solutions
All indicators are off Verify that the concentrator is receiving
power.
Press the LED/Channel Check button on the
ONline Controller Module to check if the
LEDs light.
Pull the Bridge Module out using the
module extractor and re-insert it into the
concentrator.
The Test LED is blinking Your unit failed the power-up self-test.
Write down the LED blink sequence
displayed on the front panel and refer to
Appendix D to identify the error code.
If you cannot correct the error at your site,
contact 3Com Customer Support as
explained in Appendix E.