Allied Telesis AT-MC102XLPCI - Manual (Page 35)

35
Chapter 3
Troubleshooting
Follow the guidelines below to test and troubleshoot the installation in the
event a problem occurs.
Twisted-Pair
LED
If the LINK LED for the twisted-pair port is OFF, do the following:
1. Verify that the PC is powered ON and has booted up successfully.
2. Check that the end-node connected to the port is powered ON and is
operating properly.
3. Check that the twisted-pair cable is securely connected to the twisted-
pair port on the media converter and on the remote end-node.
4. Make sure that the twisted-pair cable does not exceed 100 meters
(328 feet) and that you are using Category 5 or better Ethernet cable.
5. Verify that both end-nodes connected to the media converter are
operating at 100 Mbps and Auto-Negotiation.
6. If you are still experiencing problems , refer to “Contacting Allied
Telesis” on page 13 or visit our web site at alliedtelesis.com for
support information.
Fiber Port LED
If the LINK LED for the fiber optic port is OFF, do the following:
1. Verify that the PC is powered ON and has booted up successfully.
2. Verify that the end-node connected to the port is powered ON and is
operating properly.
3. Check that the fiber optic cable is securely connected to the fiber optic
port on the media converter and on the end-node.
4. Verify that the end-nodes connected to the media converter are
operating at the same speed. Both must be operating at 100 Mbps.
5. Make sure that the cable connected to the media converter’s receiver
port (RX) is connected to the end-node’s transmitter port (TX) and that
the media converter’s transmitter port (TX) is connected to the end-
node’s receiver port (RX).