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Diagnosing With the LEDs
Table 5-1 shows the LED patterns you will see if the bridge or network has a fault during
self-test. Table 5-2 shows the LED patterns for a bridge or network fault during operation.
Table 5-1. LED Patterns Showing Self-test Failures
Fault
Line On
(front and
(on front)
back)
OFF
*
*
*
*
ON
*
ON
* This LED is not important for the diagnosis.
5-2 Troubleshooting
LEDs
Pwr
Self-test Net Fail
(on back)
*
*
OFF
*
*
ON
*
ON
Suggested Actions
Check power cord and power source.
If OK, bridge +5 V power has failed.
*
Replace the bridge.
Check power cord and power source.
If OK, bridge +12 V power has
*
failed. Replace the bridge.
Bridge hardware failure detected
OFF
during self-test. Replace the bridge.
Port fault detected on the indicated
port during self-test. Check cables,
connections, transceivers (if used),
etc.
ON
For the bridge to pass self-test, a
viable network or an HP loopback
connector must be attached to one of
the port 1 connectors and to the port
2 connector.
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