Galvanic isolation for the I2C Bus

I2C Fiber Adapter

  • Optical data transmission
  • Glass fiber or POF
  • Optimal galvanic isolation
  • Up to 350kHz
  • Up to 50m
  • No software or drivers required
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The I2C Fiber Adapter is bidirectional externally powered I2C to Single Mode Fiber Optic converter. It allows the communication between I2C devices using fiber cables over long distances. The adapter comes with 2-Way Terminal Block for power supply, 3-Way Terminal Block for I2C-Bus and 4 VLink type connectors for fiber optic links.


The adapter is hot-pluggable (plug-and-play) and requires no software or drivers.

Part number: #980103
Price: 140,- EUR plus VAT & shipping



  • 10 MBD VLINK Transmitter / Receiver
  • Wavelength 650nm
  • I2C Clock up to 350kHz
  • Max. Distance 50m @25°C @100kHz I2C Clock
  • Power Supply:
    Hardware version 1.x: 8 – 12 VDC
    Hardware version 2.x: 4.1 – 6.0 VDC
  • Power Consumption:
    Hardware version 1.x: typ. 130mA
    Hardware version 2.x: typ. 90mA
  • Single Mode 1mm POF Fiber optic cable
  • Connections:
    1x 2-Way Terminal Block for Power Supply
    1x 3-Way Terminal Block for I2C-Bus
    4x VLINK Connectors
  • Dim. 65×35 mm2


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I2C Fiber Adapter – Datasheet