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1. Introduction
The industrial 10/100BASE-TX to 100BASE-FX media converter series provides industrial strength Ethernet
copper-to-fiber media conversion, allowing for 10Base-T-100Base-FX or 100Base-TX-100Base-FX over
multi-mode or optional single-mode fiber optical media.
In addition to the basic media conversion functions, the converters also provide some special functions to
enhance the flexibility for wide application needs as follows:
AUTO-NEGO FUNCTION
The copper port is featured this function which performs a negotiation process for the speed and duplex
configuration with the connected device automatically when each time a link is being established.
AUTO-CROSS FUNCTION
The copper port is featured this function that allows to auto-detect the twisted-pair signals and adapts itself to
form a valid MDI to MDI-X connection with the remote connected device automatically.
FAR END FAULT FUNCTION
The fiber port is facilitated with this function, which conforms to IEEE 802.3u 100BASE-FX specifications.
When the 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.
SMART-FORWARDING FUNCTION
The converter uses store-and-forward mechanism for packet forwarding normally when both media ends
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