Product Features - Transition Networks SBFTF10 1 Series User Manual

Transition Networks SBFTF10xx-10x User Guide

Product Features

Rate Conversion
The media converter allows connection of 10Mb/s terminal devices on a 10Base-T legacy Ethernet
copper network to 100Mb/s terminal devices on a 100Base-TX Fast Ethernet copper network and/or to
100Mb/s terminal devices on a 100Base-FX Fast Ethernet fiber network.
Auto-Negotiation
The Auto-Negotiation feature allows the SBFTF10xx-10x media converter to automatically configure
itself to achieve the best possible mode of operation over a link. The media converter broadcasts its
speed (10 Mb/s or 100 Mb/s) and duplex capabilities (full or half) to the other devices and negotiates
the best mode of operation. Auto-Negotiation allows quick and easy installation because the optimal
link is established automatically.
In a scenario where the media converter is linked to a non-negotiating device, the user may want to
disable Auto-Negotiation. In this instance, the mode of operation will drop to the least common
denominator between the two devices (e.g.: 10 Mb/s, half-duplex). Disabling this feature lets you force
the connection to the desired speed and duplex mode of operation.
AutoCross
When the AutoCross feature is activated, it allows either straight-through (MDI) or crossover (MDI-X)
copper cables to be used when connecting to 10Base-T or 100Base-TX devices. AutoCross determines
the characteristics of the connection and automatically configures the unit to link up, regardless if the
copper cable is MDI or MDI-X configuration.
Link Pass-Through
The Link Pass-Through feature allows the media converter to monitor both the fiber and copper RX
(receive) ports for loss of signal. In the event of a loss of an RX signal (1), the media converter will
automatically disable the TX (transmit) signal (2), thus, "passing through" the link loss (3). The far-end
device is automatically notified of the link loss (4), which prevents the loss of valuable data unknowingly
transmitted over an invalid link.
Far-end Fault
When a fault occurs on an incoming fiber link (1), the media converter transmits a Far-End Fault signal
on the outgoing fiber link (2). In addition, the Far-End Fault signal also activates Link Pass-Through,
which, in turn, disables the link on the copper portion of the network (3) and (4).
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