SPC X-Bus RS485 to Fiber Converters

The FDX60 multimode fiber units allow the X-Bus transmission to be converted from 485 protocol to optical and back to 485. This allow the data between the SPC expanders to travel further distances. (max 4.5Km)

SPC X-Bus RS485 to Fiber Converters

The ComNet FDX60(M,S)[-M] data transceivers provide point-to-point transmission of simplex or duplex EIA RS232/RS422/RS485 (2W/4W) data signals over one or two optical fibers. The transceivers are transparent to data encoding allowing for broad-range compatibility. Models within this series are available for use with multimode or single mode optical fiber.


  • Robust design assures extremely high reliability in unconditioned out-of-plant/roadside environments
  • NTCIP compatible
  • Wide optical dynamic range: optical attenuators are never required
  • Status indicating LEDs provide rapid indication of critical operating parameters.
  • Meets EIA RS232C/D and RS422/RS485 (2 or 4-wire) specifications
  • Fiberlink Fiber Link Tester
  • Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events.

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