Perle 10/100/1000 Media Converter Module – Installation Guide
7
If the remote Media Converter is set up for Fiber Fault Alert (FFA)
and the local Media Converter is set up with Link Pass-Through, a
loss of fiber link on either the transmit or receive line will be
passed through to the local copper connection thus notifying the
connected device.
If the Media Converter has been set to Smart Link Pass-Through
mode, the effect will be the same as FFA, since the link loss on
the fiber receiver will result in bringing down the copper link, which
will in turn cause the transmit fiber link to be brought down.
Note: This feature only takes effect if Fiber Negotiation has been
turned off.
Disabled: The Media Converter Module will not monitor for or
generate Fiber Fault Alert.
The following diagram is an illustration of the operation of this
feature.
(A) – Remote Media Converter setup for Fiber Fault Alert
Enabled, Fiber Negotiation – OFF and Link Mode – Standard.
(B) – Local Media Converter setup for Fiber Fault Alert -Enabled,
Smart Link Pass-Through - Enabled and Fiber Negotiation - OFF
1 – (A) Loses fiber connection on its receiver.
2 – (A) disables fiber transmitter.
3 – (B) Detects loss of link on its fiber receiver.
4 – (B) Drops link on copper connection because Smart Link
Pass-Through is configured.
5 – (A) Link on copper connection is not affected because Smart
Link Mode is set to Standard.
