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Description
Technical Specifications for 1786-RPFM
| Manufacturer | Rockwell Automation |
| Product Family: | ControlNet communication |
| 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 |
| Brand | Allen-Bradley |
| 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 |
| UPC | 10612598171108 |
About 1786-RPFM
This module is used to for conversion of Cox cable to fiber optic medium with a maximum distance of 3000 meters or 9843 feet. The fiber link provides isolation between connected nodes and provides an increased immunity to noise and electrical disturbances. The fiber link of this module requires use of 62.5/125 micron cable, OM1 multi-mode Fiber optic cable.
The 1786-RPFM is used with the 1786-RPA ControlNet Repeater Adapter module. Up to Four (4) 1786-RPFM may be used with One 1786-RPA. Additionally, mixing repeater types is allowed when assembling a ControlNet network. The maximum allowable total power consumption without damaging the module repeater adapter and nearby modules is 1.6 A @ 5V DC.
The 1786-RPFM is ideally used to extend the total length of One (1) ControlNet segment when used with Point-to-Point or Trunk line topology. It may also be used when planning to build Star and Ring topologies, to establish network with multiple direction from a single point. Additionally, these fiber converter and repeater module may be used if the application crosses an industrial location with known high levels of electrical noises and hazardous areas. The maximum attenuation for a fiber cable must not be higher than 13.3 dB. Typically, cable attenuation for a wavelength of 1300 nm is less than 1.5 dB/km.
