Black Box LGB6000SC-001, LGB6001C, LGB6000SC-004 Troubleshooting, Diagnosing Switch Indicators

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TROUBLESHOOTING

DIAGNOSING SWITCH INDICATORS

Table 15: Troubleshooting Chart

Symptom	Action
PWR LED is Off	Check connections between the switch, the power cord and
	the wall outlet.
	Contact your dealer for assistance.
Power LED is Amber	Internal power supply has failed. Contact your local dealer
	for assistance.

DIAG LED Flashing Yellow

Power cycle the switch to try and clear the condition.

If the condition does not clear, contact your dealer for assistance.

Stack Master LED is		The stack has not completed its initial configuration. Wait a
Flashing Amber		few minutes for the process to complete.
	Check that all stacking cables are properly connected.
Stack Link LED is		The uplink/downlink has failed.
Flashing Green/Amber
	For the indicated stack link, check that the stacking cables
		are properly connected. Replace the stacking cable if
		necessary (part numbers LGB6000SC-001 or LGB6000SC-004).
	Power cycle the switch to try and clear the condition.
Link LED is Off	Verify that the switch and attached device are powered on.
	Be sure the cable is plugged into both the switch and
		corresponding device.

If the switch is installed in a rack, check the connections to the punch-down block and patch panel.

Verify that the proper cable type is used and its length does not exceed specified limits.

Check the adapter on the attached device and cable connections for possible defects. Replace the defective adapter or cable if necessary.

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