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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 PWR LED is OFF, do the following:
q
Make sure that the power cord is securely connected to the wall outlet
and the power connector on the back of the switch.
q
Verify that the power outlet has power by connecting another device
to it.
q
Try connecting the switch to another power source.
q
Try using another power cord.
If a LNK/ACT LED for a twisted pair port is OFF, do the following:
q
Check that the end-node connected to the port is powered ON and is
operating properly.
q
Check that the twisted pair cable is securely connected to the port on
the switch and to the port on the end-node.
q
Verify that the end-node is operating at 10 or 100 Mbps and half-
duplex mode.
q
Make sure that the twisted pair cable does not exceed 100 meters (328
feet) and that you are using a Category 3 or better cable for 10Base-T
operation or a Category 5 or better cable for 100Base-TX operation.
19
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