Far End Fault Function; Link Fault Pass Through Function; Remote Tp Port Monitoring Function - KTI Networks KC-300DM Series Installation Manual

1.4.3 Far End Fault Function

The FX port is facilitated with this function, which conforms to IEEE 802.3u 100BASE-FX specifications.
When the FX port detects a link failure on its receiving circuitry, it will send out an FEFI (Far End Fault
Indication) signal to the remote connected device to indicate a remote fault is detected. It also is capable to
receive FEFI signal sent from the remote link partner. Upon receiving an FEFI signal, it indicates a link failure
occurred on the transmitting path. This function allows the converter to report a fiber link fault even when a
link failure occurred on transmitting fiber cable.

1.4.4 Link Fault Pass Through Function

When this function is enabled, a link fault detected on the TP port will force a link down on the FX port.
Similarly, a link fault detected on the FX port will also force a link down on the TP port. As illustrated in the
following figure, this function allows to pass TP link fault to the remote link partner and makes the converter
like a TP cable extender.

1.4.5 Remote TP Port Monitoring Function

The converter provides LED indicators labeled RTP LINK/100M/FDX to display the TP port status of its
remote link partner on FX port. As illustrated in the following figure, the remote MC must be enabled for
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