Datasheet | Switches
AT-FS238
2 Port Fast Ethernet Single Strand Speed/Media Converting Switch
TM
AT-FS238
Smart MissingLink (SML)
Key Features
TM
2 port single strand fiber media
converter,10/100TX (RJ-45) to 100FX (SC),
(1310nmTX/1550nm RX) or (1550nm
TX/1310nm RX) with distances up to 40km
The MissingLink feature allows the ports on
• LEDs for unit and port status
• Auto MDI/MDI-X
the media converter to pass the ‘Link’ status of
their connections to each other. When the
media converter detects a problem with one of
the ports, such as the loss of connection to a
node, it shuts down the connection to the other
port, thus notifying the node that the
connection has been lost.The AT-FS238 also
features Smart MissingLink (SML). This feature
monitors network connections and provides
notification if a network segment fails. This
allows network managers to quickly identify the
source and location of a failed segment and
minimize downtime.
• Mode selection button that toggles between
Link Test, MissingLink, and Smart MissingLink
Overview
The AT-FS238 media converter is a 10/100Mbps
copper to single-mode fiber media converter
which can send and receive on single strand
fiber (1310nmTX/1550nm RX) or (1550nm
TX/1310nm RX).These units are designed to be
used in pairs in a network topology to provide
point-to-point access.The AT-FS238 converts
10/100TX (RJ-45) to 100FX (SC) and will
transmit up to 40km on high quality fiber optic
cable. Both ports feature full and half-duplex
operation.The AT-FS238 is easy to install and
does not require software configuration or
management. Additionally, it can be used almost
anywhere due to its small physical size, choice of
external power supplies and options to be rack-
mounted.
• DIP switches for port configuration
• Supports half and full-duplex operation
• Data packet forwarding and filtering at full
wirespeed (10Mbps to 100Mbps, 100Mbps to
100Mbps, and 10Mbps to 10Mbps)
• Store and forward switching mode
• Automatic address learning and aging
• IEEE 802.3u compliant auto-negotiation
• External AC/DC power adapter (North
America, Continental Europe or United
Kingdom)
• Rack-mountable using optional AT-MCR12,
AT-TRAY4 or AT-TRAY1 chassis
Auto MDI/MDI-X
The AT-FS238 media converter features
automatic MDI/MDI-X.The 10/100TX (RJ-45)
port automatically determines the configuration
of the port on the device to which it is
connected and then configures itself
appropriately.This feature allows you to use
either crossover cables or straight-through cable
when connecting a device to the copper port.
Allied Telesis
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