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Allied Telesis AT-GS950-8 Manual

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AT-GS950/8, AT-GS950/16 and AT-GS950/24 Switches Installation Guide
43
Chapter 3
Troubleshooting
This chapter contains information on how to troubleshoot the switch if a
problem occurs.
Note
For further assistance, please contact Allied Telesis Technical
Support at www.alliedtelesis.com/support.
Problem 1: The POWER LED on the front of the switch is off.
Solutions: The unit is not receiving power. Try the following:
Verify that the power cord is securely connected to the
power source and to the AC connector on the back
panel of the switch.
Verify that the power outlet has power by connecting
another device
to it.
Try connecting the unit to another power source.
Try a different power cord.
Verify that the voltage from the power source is within
the required levels for your region.
Problem 2: All of the port LEDs are off even though the ports are
connected to active network devices.
Solution: The switch is probably operating in low power mode. To toggle
on the LEDs, press the eco-friendly button on the front panel.
Problem 3: A twisted pair port on the switch is connected to a network
device but the port’s LINK/ACT LED is off.
Solutions: The port is unable to establish a link to a network device. Try
the following:
Verify that the network device connected to the twisted
pair port is powered on and is operating properly.
Verify that the twisted pair cable is securely connected
to the port on the media converter channel and to the
port on the remote network device.
… 43 …


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