Gefen Gefen 3GSDI Fiber Optic Extender 12 miles (12km) EXT-3GSDI-FO-141

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3GSDI Digital Video Transport System over Fiber Optic

The Gefen 3GSDI Fiber Optic Extender is a miniature digital video transport system over fiber optic cable for 3G/HD-SDI. It transports a one-channel SMPTE-424M 3G-SDI, SMPTE-292M HD, or SMPTE-259M serial digital video signal over extended distances up to 12 miles (20 km) by using either single-mode or multi-mode fiber optic cable.

How It Works

A digital video source is connected to the 3GSDI Fiber Optic Extender sender. Next, connect the sender and receiver via fiber optic cable. Apply power to both sender and receiver units. Finally, connect the receiver unit to the 3G-SDI digital output destination.


  • Supports SMPTE-424M, SMPTE-292M HD, or SMPTE-259M 3G HD-SDI
  • Extends up to 12 miles (20Km) including clock recovery
  • Transports Multi-rate HD-SDI Digital Video over 1 Fiber
  • Latch-Locking Power Connector
  • HD-SDI BNC input connector and ST terminated fiber optical connector
  • Robust metal die-casting enclosure for harsh environment
  • Automatic Input Equalization
  • Automatic Output Reclocking


  • Signal Format: SMPTE-424M 3G HD-SDI, SMPTE-292M HD-SDI, SMPTE-259M SDI
  • Input Impedance: 75 Ohm
  • Data Rate: up to 3 Gbps
  • Signal Level: 800mVp-p +/- 50mV
  • Optical Fiber Types: ST (Multi mode and Single mode)
  • Number of Fibers: 1
  • Output Connector: BNC Female
  • Distance: Up to 12 miles (20km) using single-mode fiber
  • Propagation Delay (Sender): 1.5 ns
  • Propagation Delay (Receiver): 40 ns
  • Dimension: Dimensions: 0.77"W x 0.77"H x 1.97"D
  • Power Supply: 5V DC @ 0.5 A
  • Power Budget: 16dB
  • Operating Temperature: -20 to + 80C

Package Includes:

  • (1) EXT-3GSDI-FO-141S Sender
  • (1) EXT-3GSDI-FO-141R Receiver
  • (1) Users manual
  • (2) 5V DC Power Supplies

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