{"product_id":"allen-bradley-1757-src1-controllogix-system-redundancy-fiber-optic-cable","title":"Allen Bradley 1757-SRC1 ControlLogix System Redundancy Fiber Optic Cable","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1757-SRC1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the critical high-speed data link for ControlLogix redundancy systems. This 1-meter (3.28 ft) fiber optic cable facilitates the synchronization of data between primary and secondary 1757-SRM (System Redundancy Modules). By providing a dedicated path for state-tracking and memory mirroring, this cable ensures the secondary controller remains ready to assume control without process interruption. We provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Factory Original\u003c\/strong\u003e, offering a \"zero-hour\" solution for mission-critical infrastructure despite its discontinued status.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1757-SRC1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 Meter (3.28 Feet)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eST-Style Fiber Optic\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Hardware\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1757-SRM System Redundancy Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMedia Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMulti-mode Fiber\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.44 lbs (0.20 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eController Redundancy Synchronization\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEMI\/RFI Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1757-SRC1 utilizes fiber optic media rather than copper, which completely eliminates risks associated with electromagnetic interference. This ensures stable data synchronization even when routing the cable near high-voltage motor leads or variable frequency drives (VFDs).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Synchronization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe multi-mode fiber architecture supports the rapid transfer rates required to mirror controller memory. This speed allows the secondary 1757-SRM to track the primary CPU's scan cycle with microsecond precision, preventing \"bump\" transfers during a failover event.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandardized ST-Connectors:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe ST-style bayonet mount provides a secure, vibration-resistant connection. The \"twist-and-lock\" mechanism prevents accidental disconnection in industrial environments subject to high mechanical resonance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Length for Swing-Arm Racks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1-meter length provides sufficient slack for cross-chassis mounting in standard 19-inch enclosures while minimizing signal attenuation and excessive cable clutter within the wire management duct.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use a standard off-the-shelf fiber cable instead of the 1757-SRC1?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the connectors are standard ST-type, the 1757-SRC1 features specific attenuation characteristics and industrial jacketing tested by Rockwell Automation for use with the 1757-SRM. Using non-specified cables can introduce synchronization jitter or \"Partner Disconnected\" errors in the redundancy log.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I handle the cable during installation to avoid damage?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFiber optic cores are fragile. You must strictly observe the minimum bend radius (typically 1 inch or 25mm). Avoid sharp 90-degree bends and do not use plastic zip-ties with excessive force, as crushing the jacket will degrade the light signal and cause redundancy failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSince the 1757-SRC1 is discontinued, what is the condition of this stock?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe guarantee this item is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand remains in its original factory-sealed Allen Bradley packaging. We do not sell used or \"pulled\" cables, ensuring that the fiber tips are free from scratches or contaminants that compromise data integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable compatible with the newer 1756-RM2 modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1757-SRC1 specifically services the legacy 1757-SRM series. The newer 1756-RM2 modules utilize small form-factor pluggable (SFP) transceivers and LC-style fiber connectors (such as the 1756-RMC series cables). Always verify your module part number before purchase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53446928793784,"sku":"1757-SRC1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1757-SRC1.jpg?v=1778227962","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1757-src1-controllogix-system-redundancy-fiber-optic-cable","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}