Comnet RS232/422/485 2/4W 2-direct Data Transceiver/mm/1 fiber

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  • Data Format RS232, RS422, 2 or 4-wire RS485 w/Tri-State, Manchester, bi-phase, Sensornet
  • Data Rate DC-250 kbps
  • Operating Mode Asynchronous, simplex or full-duplex
  • Bit Error Rate <10-9 @ Maximum Optical Loss Budget

Wavelength: 1310/1550 nm

Number of Fibers:1 In/1 Out

Optical Emitter: Laser

LED Indicators

  • Power
  • Data In
  • Data Out
  • Link
  • Loop Back


  • Power Terminal Block
  • Optical ST
  • Data Terminal Block
  • Relay Terminal Block


  • Operating Voltage Range 8 to 15 VDC (or from C1 Rack, sold separately)
  • Power Consumption 2 W

Electrical & Mechanical

  • Number of Rack Slots 1 (ComFit)
  • Current Protection Automatic Resettable Solid-State Current Limiters
  • Circuit Board Meets IPC Standard
  • Size, Mini 4.1 × 3.7 × 1.1 in (10.4 × 9.4 × 2.8 cm)
  • Size, ComFit 6.1 × 5.3 × 1.1 in (15.5 × 13.5 × 2.8 cm)
  • Shipping Weight <2 lbs./0.9 kg


  • MTBF >100,000 hours
  • Operating Temp -40° C to +75° C
  • Storage Temp -40° C to +85° C
  • Relative Humidity 0% to 95% (non-condensing)

This listing is for FDX60M1B Transceiver only. Use description below as a general reference.

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. Plug-and-play design ensures ease of installation requiring no electrical or optical adjustments. Each transceiver incorporates a bi-color (Red/Green) indicating LED for monitoring proper system operation. The FDX60(M,S)-M has a small footprint and is designed for surface mounting. The FDX60(M,S) can be rack or surface mounted. The FDX60(M,S)[-M] has a built-in fiber link test feature that allows for the testing of the fiber.

Note: The power supplies provided with ComNet products are designed for benign 0 to 50º C applications. Hardened power supplies are available, consult the factory to select the right power supply for your application.


  • Meets EIA RS232C/D and RS422/RS485 (2 or 4-wire) specifications
  • Tested and certified by an independent laboratory for full compliance with the environmental requirements (ambient operating temperature, mechanical shock, vibration, humidity with condensation, high-line/low-line voltage conditions and transient voltage protection) of NEMA TS-1/TS-2 and the Caltrans Specification for Traffic Signal Control Equipment.
  • Robust design assures extremely high reliability in unconditioned out-of-plant/roadside environments
  • NTCIP compatible
  • 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.
  • Wide optical dynamic range: optical attenuators are never required
  • Indicating LEDs display equipment operating status
  • Hot-swappable rack modules
  • Interchangeable between stand-alone or rack mount use – ComFit
  • Standard size FDX60 may be DIN-rail mounted by the addition of ComNet model DINBKT1 or DINBKT4 adaptor plate.
  • FDX60-M has a small footprint and is designed for surface mounting
  • Lifetime Warranty

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