Allen Bradley ControlNet Fiber Ring Medium Repeater 1786-RPFM


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  • Manufacturer: Allen Bradley – PLC
  • Product Type: PLC/Programmable Logic Controller
  • Part Number: 1786-RPFM
  • Series: 1786 Repeaters
  • UPC: 10612598171108
SKU: 1786-RPFM Category:


The 1786-RPFM is a medium-distance repeater fiber module that has a 0-3 Kilometer repeater distance. It is mainly used to create a star topology, ring topology, and to extend the length of the network.

  • Operating Temperature: EC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0…60 o C (32…140 o F)
  • RX responsivity, min: 32.8 dBm @ 25 °C (77 °F)
  • TX power, min: (-16 dBm) @ 25 °C (77 °F) into 62.5/125 ?m Micron multimode fiber (-19.5 dBm) @ 25 °C (77 °F) into 50/125 ?m Micron multimode fiber
  • Fiber termination type ST: Plastic or ceramic
  • Communication rate: 5 Mbps
  • Power Consumption, max: 2 W, max
  • Voltage and current ratings: Backplane: 400 mA @ 5V DC max
  • Supported Topologies: Star, Linear, Ring, Point to Point
  • Mounting orientation: Vertical / Horizontal
  • Mounting: Panel Mount / DIN Rail
  • Product Type: ControlNet Modular Repeater Medium-distance Fiber Module
  • Part Number/Catalog: No. 1786-RPFM
  • Fiber Type: 62.5/125 Micron multimode OM-1 fiber
  • Product Line: ControlNet Repeater
  • Repeater Type: Repeater Medium-Distance Fiber Module
  • Fiber Operating Wavelength: 1300 nm
  • Attenuation Levels: 13.3 dB
  • Input Power: 5V DC
  • Typical Repeater Distance: 0-3km
  • Backplane Current Draw: 400 mA

The 1786-RPFM unit is a product of the Allen-Bradley/Rockwell Automation 1786 ControlNet Repeater series. This module is a repeater medium-distance fiber module that has a 0-3 kilometer repeater distance and is used with 62.5/125 micron multimode OM1 fiber with 5 Volts of DC power, a current draw of 400 milliamperes, an operating wavelength of 1300 nanometers, and a level of attenuation of 13.3 decibels. Designed to solve medium distance applications, this unit only requires less than 3000 meters per segment between the two ControlNet Fiber repeaters; however, the maximum length of the section depends upon the quality of fiber, a number of connectors, and a number of splices. When it comes to the installation of this repeater series, a trained specialist is recommended for this purpose as its installation requires a proper verification test. Moreover, this Allen Bradley 1786-RPFM unit should be mounted within a suitable system to prevent injuries. In addition, make sure that the interior of this enclosure is accessible by a tool, such as a screwdriver, so that no harm is done by the live parts.

This 1786-RPFM ControlNet unit is mainly used to create a star topology, ring topology, to extend the length of the network, and for conversion of copper coaxial cable to fiber media. The Allen-Bradley 1786-RPFM unit provides exceptional isolation between nodes and is also less susceptible to the noisy environment than other copper media. It is also used to power various repeater modules. They both come with a status indicator that is interpreted by the user to communicate the faulty conditions and to check if there are errors in the data or not.

Additional information

Weight 0.25 kg


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