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Chapter 5, Troubleshooting, Diagnosing switch indicators – Allied Telesis AT-8324SX User Manual

Page 51

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Chapter 5

Troubleshooting

This chapter contains troubleshooting information.

Diagnosing Switch Indicators

Table 6 Troubleshooting Chart

Symptom

Action

Power LED is OFF

- Internal or redundant power supply has failed or

is disconnected.

- Check connectors between the switch, the

power cord, the wall outlet, and the RPU, if you
are using one.

- If the switch is installed in a rack, check the

connections to the punch-down block and patch
panel.

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.

- 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.