Miniature Ethernet-to-Fiber Optic Converters 

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RAD M-EFC/U Miniature Ethernet-to-Fiber Optic Converters 


  • M-EFC/U Miniature Ethernet UTP to Fiber Optic Converter for Ethernet LANs, converts between UTP (10BaseT) electrical signals and 10BaseFL optical signals for transmission over fiber optic cable.
  • M-EFC/U is used to connect PCs with a UTP interface card to a fiber optic-based network.
  • Supporting full/half duplex links, M-EFC/U takes full advantage of the unlimited range available on full duplex links (limited only by media attenuation and not by collision domain).
  • Using fiber optic cable M-EFC/U increases range, improves network performance and achieves greater reliability. M-EFC/U also reduces susceptibility to electrical noise and radio interference, and increases communication security by providing immunity to tapping and eavesdropping along exposed cable segments.


  • Extends Ethernet LANs up to 20 km
  • Supports 10BaseFL and 10BaseT IEEE 802.3 standards
  • Supports half/full duplex Ethernet
  • Multimode or single mode
  • Powered from external power source
  • Supports workstations, routers, hubs and switches


Miniature Ethernet UTP to Fiber Optic Converter

* Specify optical interface:
ST85 for 850 nm multimode ST connector
ST13 for 1300 nm single mode ST connector
FC85 for 850 nm multimode FC connector
FC13 for 1300 nm single mode FC connector

$ Specify AC for 90-264 VAC switching power supply with integral AC connector (may be ordered seperately as P/S-AC/12/800)

Note: While M-EFC/U can operate with any 12 VDC, 150 mA power supply, the CE approval requires use of the RAD power supply listed above.





RAD Products

For discount pricing on RAD Data Communications  
email us at sales@data-connect.com
or call 301-924-7400