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Chapter 3
Troubleshooting
Follow the guidelines below to test and troubleshoot the installation in the
event a problem occurs.
If the POWER LED is OFF, do the following:
Check to be sure that the power cord is securely connected to a power
outlet and that the other end of the power cord is securely connected
to the back of the switch.
Check that the voltage from the power source is within the required
levels for your region.
Verify that the power outlet has power by connecting another device
to it.
Try connecting the unit to another power source.
Try using another power cord.
If a LINK/ACT LED is OFF, do the following:
Check that the end-node connected to the port is powered ON and is
operating properly.
Check that the twisted pair cable is securely connected to the twisted
pair port on the switch and to the port on the end-node.
Make sure that the twisted pair cable does not exceed 100 meters (328
feet) and that you are using Category 3 or better cable for 10Base-T
operation or Category 5 or better cable for 100Base-TX operation.
Verify that the end-node is operating at 10 Mbps or 100 Mbps.
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