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Transition Fast Ethernet 100BASE-TX to 100BASE-FX Stand-Alone Media Converters - 220 KM - E-100BTX-FX-05-E

Using one media converter, a switch with a copper port can be connected to a switch with an existing fiber interface.   Learn more about the product
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eCOST Part#: 331111
Mfr Part#: E-100BTX-FX-05-E
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Transition Networks offers networking connectivity solutions that make the conversion between disparate media types possible. The company designs and markets these media conversion technologies across a broad spectrum of networking protocols including Ethernet, Fast Ethernet, FDDI, ATM, Gigabit and Token Ring. The company works alongside leading networking vendors - Nortel Networks, Hewlett Packard, 3COM, Cisco, Cabletron, Lucent and others - to provide conversion technology solutions that offer the necessary adaptations without affecting the performance, nature or appearance of the network to the users or the network devices.

Extend Network Distance
Used in pairs, this media converter can extend distances between two twisted pair switches or a switch and a server up to 2 km over multimode fiber, or up to 120 km over single mode fiber.


– Operates under heavy traffic loads without excess heat, so there is no need for a failure-prone internal fan.

– Round trip delay of only 40 bit times—far below the Class II rating of 92 bit times.

– Auto-Negotiation (802.3u)
Allows devices to perform automatic configuration to achieve the best possible mode of operation over a link.

– AutoCross™
Automatically detects and configures the twisted pair port on the converter to the correct MDI or MDI-X configuration.

– Link Pass Through
Link Pass Through is a troubleshooting feature that allows the media converter to monitor both the fiber and copper RX ports for loss of signal.

– Far End Fault (FEF)
A troubleshooting feature that is generally used in conjunction with Link Pass Through to notify both end devices of a loss of link.

– Automatic Link Restoration
Transition Networks's converters will automatically re-establish link in all network conditions.

– Pause (IEEE 802.3xy)
Pause signaling is an IEEE feature that temporarily suspends data transmission between two devices in the event that one of the devices becomes overwhelmed.

– The converters will also automatically re-establish link when connected to two 10/100 auto-negotiating switches if link is lost. With other manufacturers' converters the user must intervene to re-establish link.


– SW1: Auto-Negotiation On/Off
– SW2: Pause TX On/Off
– SW3: Link Pass Through On/Off
– SW4: Far End Fault On/Off

– J3: AutoCross™ enable/disable

Status LEDs
– Power: On = connection to external AC power
– SDF or LKF (Signal Detect Fiber or Link Fiber): On = Fiber link detected
– SDC or LKC (Signal Detect Copper or Link Copper): On = Copper link detected
– RXF (Receive Fiber): Flashing = Signal being received on fiber link
– RXC (Receive Copper): Flashing = Signal being received on copper link

– Width: 3.0” (76 mm)
– Depth: 4.7” (119 mm)
– Height: 1.0" (25mm)
Additional Details
Additional details IEEE Std. 802.3™ 100BASE-FX, 100BASE-TX Standards
Manufacturer Information
Parts Warranty Lifetime
Labor Warranty Lifetime
Warranty Details Limited Warranty
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Transition Fast Ethernet 100BASE-TX to 100BASE-FX Stand-Alone Media Converters - 220 KM (E-100BTX-FX-05-E )

Using one media converter, a switch with a copper port can be connected to a switch with an existing fiber interface.

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