A Troubleshooting; Diagnosing Led Indicators; System Self-Diagnostic Test Failure; Table 11: Troubleshooting Chart - Edge-Core ECS4510-12PD Installation Manual

A

Diagnosing LED Indicators

System Self-Diagnostic Test Failure

Troubleshooting

Table 11: Troubleshooting Chart

Symptom Action
Pwr LED is Off If receiving power from an external DC supply to the 3 pin DC input
connector:
◆
◆
◆
If receiving power from a PoE PSE:
◆
◆
◆
◆
Diag LED is Flashing
Amber
◆
◆
Link/Act LED is Off
◆
◆
◆
◆
If the Diag LED indicates a failure of the system power-on-self-test (POST), you can
use a console connection to view the POST results. The POST results may indicate a
failed component or help troubleshoot the problem. For more information on
connecting to the console port and using the CLI, refer to the CLI Reference Guide.
Note a POST failure normally indicates a serious hardware fault that cannot be
rectified or worked around. If you encounter a POST failure, you should contact
your dealer for assistance.
Check the connections between the switch, the DC power
connector. and the DC power supply.
Check the DC power supply is providing 48 VDC.
Contact your dealer for assistance.
Check the connections between the switch RJ-45 port and the PoE
PSE device.
Check the PoE PSE device, providing DC input power over Ethernet,
is operating correctly.
Contact your dealer for assistance.
Power cycle the switch to try and clear the condition.
If the condition does not clear, contact your dealer for assistance.
Verify that the switch and attached device are powered on.
Check the cable connectors are firmly 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 attached device and cable connections for possible
defects. Replace the defective cable if necessary.
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