Allied Telesis X8106 User Manual
SwitchBlade x8106 Chassis Switch Installation Guide
199
Fiber Optic Transceivers
The L/A LEDs on the AT-SBx81GS24a and AT-SBx81XS6 Line Cards are
solid or flashing green when ports on fiber optic transceivers have links to
end nodes. If a transceiver is cabled to an end node but the L/A LED is off,
try the following:
solid or flashing green when ports on fiber optic transceivers have links to
end nodes. If a transceiver is cabled to an end node but the L/A LED is off,
try the following:
If all of the L/A LEDs on the line cards in the chassis are off, try
pressing the eco-friendly button on the active master controller
card to turn on the LEDs.
pressing the eco-friendly button on the active master controller
card to turn on the LEDs.
Check that the fiber optic transceiver is firmly inserted into the slot
on the line card.
on the line card.
Check that both ends of the fiber optic cable are securely
connected to the ports on the transceiver and end node.
connected to the ports on the transceiver and end node.
Verify that the end node is powered on and operating properly.
Review the operating specifications of the fiber optic transceiver
and end node to verify that the devices have the same speed and
duplex mode.
and end node to verify that the devices have the same speed and
duplex mode.
Check that the operating specifications, including wavelength and
maximum operating distance, of the transceiver are compatible
with the fiber optic port on the end node.
maximum operating distance, of the transceiver are compatible
with the fiber optic port on the end node.
Make sure that you are using the appropriate type of fiber optic
cable and that the cable length does not exceed the allowed
maximum distance. The cable specifications for the transceivers
are provided in the installation instructions that ship with the
modules.
cable and that the cable length does not exceed the allowed
maximum distance. The cable specifications for the transceivers
are provided in the installation instructions that ship with the
modules.
Use a fiber optic tester to test the whether the optical signal is too
weak (i.e., sensitivity) or too strong (i.e., maximum input power).
The operating specifications of the fiber optic transceivers are
shipped with the units.
weak (i.e., sensitivity) or too strong (i.e., maximum input power).
The operating specifications of the fiber optic transceivers are
shipped with the units.
Try replacing the fiber optic cable.
Check the two strands of the fiber optic cable to be sure that the
receive fiber connector is connected to the transmit connector on
the remote end node, and that the transmit fiber connector is
connected to the receive connector on the end node.
receive fiber connector is connected to the transmit connector on
the remote end node, and that the transmit fiber connector is
connected to the receive connector on the end node.