M/E-TX Series

Mini Fast Ethernet Media Converter
100Base-TX to 100Base-FX

M/E-TX Series
  • c-768x768
  • M-E-TX-FX-01
  • M-E-TX-FX-01-SC
  • M-E-TX-FX-01-SFP
  • M-E-TX-FX-01-SM

The M/E-TX Series is a Fast Ethernet stand-alone Mini media converter that provides cost effective media conversion between 100Base-TX ports and 100Base-FX ports. With its fixed configuration, deployments are just plug-and-play, and its small size makes it ideal for locations where space is limited. Operating at Layer 1, the physical layer, data is passed through the converter at line speed, making it ideal for applications where low latency is essential.

M/E-TX Series

Related Products

M/E-TX Series Overview


  • Fiber integration used in pairs or as a single unit, this mini media converter will ease the integration of fiber optic cabling into copper-rich fast Ethernet environments
  • Extend Network Distance as fiber supports the transmission of Fast Ethernet data over much longer distances than possible twisted pair
  • Low-Latency Layer 1 Design, this mini converter will retransmit Fast Ethernet signals without any store-and–forward packet inspection delays found in other Layer 2 devices
  • Small Size is ideal for conversion locations where available space is limited – 65% smaller than standard media converter
  • Unit and port LEDs allow for quick status information
  • Auto-Negotiation
  • Auto-MDI/MDIX

M/E-TX Series Tech Specs


    • IEEE 802.3u
    • 100Base-TX
    • 100Base-FX

    Data Rate

    • 100 Mbps

    Status LEDs

    • PWR (Power) below RJ-45: On = Power
    • FX-Link/Act (Fiber Link / Activity) Upper Left on RJ-45: On = link, Flashing = Activity
    • TX-Link/Act (Copper Link / Activity) Upper Right on RJ-45: On = link, Flashing = Activity


    • Width: 1.8” [46 mm]
    • Depth: 3.3” [85 mm]
    • Height: 0.85 [22 mm]

    Power Consumption

    • 2.6 Watts

    Power Supply

    • External AC/DC required; +12VDC, 0.5A

    Power Input

    • 7.5VDC to 13.9VDC


    • Operating: 0°C to 50°C
    • Storage: -15°C to 65°C
    • Humidity: 5% to 95% (non-condensing)
    • Altitude: 0 – 10,000 ft.


    • 2 lbs. [0.90 kg]


    • 41,680 hours (MIL-HDBK-217F)
    • 114,580 hours (Bellcore7 V5.0)


    • Wall Mount Power Supply, UL Listed, cUL Listed (Canada)


    • Lifetime

M/E-TX Series Resources

Application Spotlights
Press Releases
Case Studies

M/E-TX Series Downloads

Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

M/E-TX Series Part Numbers

M/E-TX-FX-01 M/E-TX Series

100Base-TX (RJ-45) [100m/328 ft.] to 100Base-FX 1300nm multimode (ST)[2km/1.2mi.] Link Budget: 11.0db

M/E-TX-FX-01(SC) M/E-TX Series

100Base-TX (RJ-45) [100m/328 ft.] to 100Base-FX 1300nm multimode (SC) [2km/1.2mi.] Link Budget: 11.0db

M/E-TX-FX-01(SM) M/E-TX Series

100Base-TX (RJ-45) [100m/328 ft.] to 100Base-FX 1310nm single mode (SC)[20km/12.4mi.] Link Budget: 16.0db

M/E-TX-FX-01(SFP) M/E-TX Series

100Base-TX (RJ-45) [100m/328 ft.] to 100Base-X SFP Slot (empty)

Lantronix Part # Name Description Order Now

Compatible Accessories

Lantronix Part # Legacy Part # Name Description Order Now
SFP Modules SFP Modules See Relevant SFP Modules
DRBM DRBM 3.3” DIN Rail Mount Bracket for “Mini” Media Converters
WMBM WMBM 3.3” Wall Mount Bracket for Mini Media Converters
RMBM RMBM Rack mount bracket for mini media converters, used with E-MCR-05 and RMS19-SA4-02
SPS-2460-SA SPS-2460-SA Stand-Alone Power Supply
M-MCR-01 M-MCR-01 18-Slot Mini Media Converter Chassis