Chapter 3 Troubleshooting - Allied Telesis AT-FS705L Installation Manual

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;
Make sure that the power cord is securely connected to the wall outlet
and the power connector is securely connected to the back of the
switch.
Verify that the power outlet has power by connecting another device
to it.
Try using another power cord of the same type that came with your
switch.
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 port on
the switch and to the port on the end-node.
Verify that the end-node connected to the port and the switch are
operating at the same speed. Both must be operating at either 10
Mbps or 100 Mbps.
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.
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