Allied Telesis AT-MC14 - Manual (Page 26)

16
If the LNK LED for the fiber optic port is OFF, do the following:
q
Verify that the end-node connected to the port is ON and is operating
properly.
q
Check that the fiber optic cable is securely connected to the fiber optic
port on the media converter and on the end-node.
q
Check to be sure that the end-node connected to the port is operating
at 10 Mbps.
q
Make sure that the fiber optic port on the end-node is operating in
either half- or full-duplex mode.
q
Make sure that the cable connected to the media converter’s
transmitter port (TX) is connected to the end-node’s receiver port (RX)
and that the media converter’s receiver port (RX) is connected to the
end-node’s transmitter port (TX).
q
Test the attenuation on the fiber cable to ensure that it does not
exceed acceptable values.
q
Verify that you are using the appropriate type of fiber optic cable and
that you have not exceeded the maximum operating distance. For
cable types and operating distances, refer to Table 4 on page 10 and
Table 5 on page 10.
q
Check that the operating specifications (e.g., loss budget and
maximum operating distance) of the fiber optic port on the end-node
are compatible with the operating specifications of the fiber optic port
on the media converter. See Table 4 on page 10 for fiber optic port
specifications.