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Perle 10/100 Media Converter Module – Installation Guide
6
Converter Module will be determined by the Duplex (switch 4) and
Speed (switch 5) dip switch settings.
Link Mode (Switch 2)
Switch Position
Mode
Up (default) Link Pass-Through Mode
Down Standard Mode
Link Pass-Through: In this mode, the link state on one connection is
directly reflected through the Media Converter Module to the other
connection. If the link is lost on one of the connections, then the other
link will be brought down.
With Media Converters on both ends of the fiber link and both setup
for Link Pass-Through, a loss of copper link on the far end device will
propagate through both Converters and will result in a loss of copper
link at the near end device. This would, in effect, resemble a direct
copper connection
Standard Mode: In this mode, the links on the fiber and copper sides
can be brought up and down independently of each other. A loss of
link on either the fiber or copper port can occur without affecting the
other connection.
Far End Fault (Switch 3)
Switch Position
Mode
Up (default) Enabled
Down Disabled
Enabled: If the Media Converter Module detects a loss of receive
fiber signal, it will transmit a FEF signal to the remote Media
Converter. This, in effect, notifies the fiber link partner that an error
condition exists on the fiber connection.
If the remote Media Converter is set up for Far End Fault (FEF) and
the local Media Converter is set up with Link Pass-Through, a loss of