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Comnet : FDX51M2


  • Meets EIA RS232/422 specifications
  • Distances up to 4.5km (2.5 miles)
  • Transparent to data encoding/compatible with major data protocols
  • Point-to-Point topology
  • 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.
  • Data rates up to 115 Kbps (NRZ)
  • Voltage translent protection on all power and signal input/output lines provides unconditional protection from power surges and other voltage translent events.
  • Bi-Color (Red/Green) Transmit and Received LED’s
  • NTCIP compatible
  • Automatic Resettable solid-state current limiters
  • FDX50 is a compact size module for surface mounting
  • FDX51 is a hot-swappable rack module
  • FDX51 is interchangeable between stand-alone or rack mount use – Comfit
  • Five year warranty
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Product Description

The ComNet FDX50M2 and FDX51M2 data transceivers are interchangeable by application and provide point-to-point transmission of simplex or duplex EIA RS232/RS422 data signals over two multimode optical fibers. The transceivers are transparent to data encoding allowing for broad-range compatibility. 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 FDX50 has a small footprint and is designed for surface mounting. The FDX51 can be rack or surface mounted.

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