{"product_id":"1771-af1-allen-bradley-fiber-optic-converter","title":"1771-AF1 Allen-Bradley Fiber Optic Converter","description":"\u003ch2\u003eAllen-Bradley 1771-AF1 Fiber-Optic Converter Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-AF1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-AF1\u003c\/strong\u003e Fiber-Optic Converter Module, operates as a dedicated hardware component for Data Highway Plus (DH+) and Remote I\/O (RIO) optical signal conversion within PLC-5 communication networks. This stand-alone converter provides two fiber-optic channels, coaxial network interfaces, and external 5 VDC power operation for long-distance industrial communication links.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e1771-AF1\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.70 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 cm x 25.4 cm x 15.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eFiber-Optic Converter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eStand-alone mounting via mounting slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Ports\u003c\/td\u003e\n\u003ctd\u003e2 fiber-optic channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eData Highway Plus (DH+), Remote I\/O (RIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Conversion Distance\u003c\/td\u003e\n\u003ctd\u003e30,000 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e5 VDC external supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e600 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e1.0 A at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Chassis Slot\u003c\/td\u003e\n\u003ctd\u003e1 slot of 1771 I\/O chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Cable\u003c\/td\u003e\n\u003ctd\u003eBelden 9463, 1770-CD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoaxial Cable Type\u003c\/td\u003e\n\u003ctd\u003eRG-6 quad-shield coaxial cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA Type 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and PLC-5 Communication Interface Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-AF1 performs optical conversion between fiber channels and DH+\/RIO communication interfaces. The module supports two DH+\/RIO ports and two fiber-optic ports for extending communication distances beyond standard copper network limitations. Communication signal integrity is maintained through optical transmission paths, reducing susceptibility to electrical noise coupling in industrial environments.\u003c\/p\u003e\n\u003cp\u003eThe module integrates with PLC-5 system architectures through defined communication protocols and operates with external 5 VDC power. The stand-alone enclosure design allows installation independently from the main I\/O chassis while maintaining compatibility with PLC-5 communication infrastructure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What communication protocols are supported by the Allen-Bradley 1771-AF1?\u003cbr\u003eA: The 1771-AF1 supports Data Highway Plus (DH+) and Remote I\/O (RIO) communication protocols through its converter interfaces.\u003c\/p\u003e\n\u003cp\u003eQ: What is the power requirement of the 1771-AF1 module?\u003cbr\u003eA: The module requires a 5 VDC power supply with an input current of 600 mA. The specified power dissipation is 5 W.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1771-AF1 be installed inside a 1771 I\/O chassis?\u003cbr\u003eA: The module is specified as a stand-alone unit installed through mounting slots. It is not a standard plug-in I\/O module, although it interfaces with PLC-5 communication systems.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-AF1 in a controlled industrial enclosure environment according to the specified NEMA Type 12 enclosure requirements. Mount the converter using the provided mounting slots and maintain sufficient clearance for cable routing and service access.\u003c\/p\u003e\n\u003cp\u003eUse the specified DH+\/RIO communication cables and fiber-optic connections according to network installation practices. Separate communication wiring from high-voltage power conductors and high-current switching equipment to reduce electromagnetic interference.\u003c\/p\u003e\n\u003cp\u003eTerminate cable shields according to the plant grounding standard. Avoid sharp bends or excessive mechanical stress on fiber-optic cables during installation. Verify power polarity and 5 VDC supply stability before connecting communication interfaces.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43668131971162,"sku":"1771-AF1","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-AF12.jpg?v=1784260532","url":"https:\/\/www.plcmasters.com\/products\/1771-af1-allen-bradley-fiber-optic-converter","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}