{"product_id":"allen-bradley-1786-rpfrxl-controlnet-fiber-optic-ring-repeater-module","title":"Allen-Bradley 1786-RPFRXL ControlNet Fiber Optic Ring Repeater Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1786-RPFRXL\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1786-RPFRXL\u003c\/strong\u003e ControlNet Fiber Optic Ring Repeater Module, operates as a dedicated hardware component for optical signal conversion and long-distance media propagation within ControlNet communication networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1786-RPFRXL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.40 lbs (0.18 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard ControlNet repeater footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive bus backplane load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eControlNet (5 Mbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Optic Channels\u003c\/td\u003e\n\u003ctd\u003eDual fiber optic channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Compatibility\u003c\/td\u003e\n\u003ctd\u003e62.5\/125 um multi-mode \/ 9\/125 um single-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 20000 m (20 km)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eOpen-Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Format\u003c\/td\u003e\n\u003ctd\u003eDIN-rail mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Fiber Optic Signal Conversion\u003c\/h3\u003e\n\u003cp\u003eThe 1786-RPFRXL repeater module converts electrical ControlNet signals into high-speed optical pulses, maintaining deterministic backplane bus communication velocity across extended network topologies. Supporting transmission distances up to 20000 m via 62.5\/125 um multi-mode or 9\/125 um single-mode fiber optic cabling, the dual-channel optical architecture allows ring network fault tolerance. Internal signal regeneration and re-timing circuits prevent jitter accumulation and optical attenuation from degrading frame delivery across cascaded repeater links.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does removing or replacing a fiber cable on the 1786-RPFRXL interrupt active ControlNet communications on the main ring network?\u003c\/p\u003e\n\u003cp\u003eA: In a redundant ring topology, the 1786-RPFRXL reroutes signal traffic along the secondary fiber pathway upon link disconnection, maintaining continuous communication without dropping active controller nodes.\u003c\/p\u003e\n\u003cp\u003eQ: Can 62.5\/125 um multi-mode and 9\/125 um single-mode fiber cables be mixed directly on the same 1786-RPFRXL module channels?\u003c\/p\u003e\n\u003cp\u003eA: No. Transceiver optics must match the specific fiber cable core profile (multi-mode or single-mode) connected to each optic channel pair to prevent optical power mismatch and signal loss.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the repeater module onto a 35 mm DIN rail inside a protective metal enclosure, ensuring the DIN-rail grounding clip secures tightly.\u003c\/li\u003e\n\u003cli\u003eConnect primary and secondary fiber optic cable pairs to the dual fiber ports, observing transmit (TX) and receive (RX) polarity standards.\u003c\/li\u003e\n\u003cli\u003eClean all fiber optic ST\/SC connectors using lint-free optic wipes before seating them into the module optical transceivers.\u003c\/li\u003e\n\u003cli\u003eVerify that total optical link attenuation stays within the module's decibel power budget across the 20000 m maximum distance run.\u003c\/li\u003e\n\u003cli\u003eKeep fiber cable bend radii above the manufacturer's minimum specification to prevent macro-bending optical losses.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48761562103998,"sku":"1786-RPFRXL","price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1794-ACNR15.png?v=1787197703","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1786-rpfrxl-controlnet-fiber-optic-ring-repeater-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}