Universal RS232/422/485 Data Point-to-Point Transceiver

FDX70E Series

Example of Universal RS232/422/485 Data Point-to-Point Transceiver

Availability: Worldwide
The FDX70E Series is being eliminated. Please contact ComNet Customer Care for last time buy information and elimination date.

PDF Datasheet: en  




-40 º to +75 ºC




Made in the USA



The ComNet FDX70 data transceivers provide point-to-point transmission of simplex or duplex EIA RS232/RS422/RS485 (2W/4W) data signals over one single mode or multimode optical fiber. 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.

Features for FDX70E Series

  • Meets EIA RS232C/D and RS422/RS485 (2 or 4-wire) specifications
  • Robust design assures extremely high reliability in unconditioned out-of-plant/roadside environments
  • NTCIP compatible
  • Remote Fault Indication allows the user to determine when a fiber break or loss of prime operating power has occurred, or a transceiver in the field has failed
  • Wide optical dynamic range: optical attenuators are never required
  • Status indicating LEDs provide rapid indication of critical operating parameters.
  • Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events.
  • Designed to meet 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.
  • Standard ComFit models are hot-swappable.
  • Lifetime Warranty
  • ComFit standard form factor is designed for wall, surface, rack, or DIN rail mount installations (using optional card cage or DIN mounting bracket).

FDX70E Series Application Diagram(s) (1)

Application Diagram(s) for FDX70E Series

FDX70E Series Ordering Information

Part NumberDescription
FDX70EAM1Universal Data Point To Point “A” End, 1 Fiber, MM. Lifetime Warranty.
FDX70EBM1Universal Data Point To Point “B” End, 1 Fiber, MM. Lifetime Warranty.
FDX70EAS1Universal Data Point To Point “A” End, 1 Fiber, SM. Lifetime Warranty.
FDX70EBS1Universal Data Point To Point “B” End, 1 Fiber, SM. Lifetime Warranty.