Allied-telesis AT-MC14 Bedienungsanleitung PDF herunterladen (Seite 25)

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 If the unit is installed on a desktop, check to be sure that the power

adapter is securely connected to a power outlet and that the power

adapter cable is securely connected to the back of the media converter.

q If the unit is installed in an AT-MCR12 chassis, check that the unit is

fully seated in the slot.

q Verify that the power outlet has power by connecting another device

to it.

q Try using another power adapter.

If the LNK LED for the 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 twisted

pair port on the media converter and to the end-node.

q Make sure that the twisted pair cable does not exceed 100 meters (328

feet) and that you are using Category 3 or better cable.

q Verify that the end-node is operating at 10 Mbps and half- or

full-duplex mode.

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Allied-telesis AT-MC14 Bedienungsanleitung Seite 25