{"product_id":"allen-bradley-1756-rmc1-controllogix-redundancy-fiber-cable","title":"Allen-Bradley 1756-RMC1 ControlLogix Redundancy Fiber Cable","description":"\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe \u003cstrong\u003eAllen-Bradley 1756-RMC1\u003c\/strong\u003e functions as a dedicated, high-speed physical interface assembly engineered to interconnect synchronization channels across redundant hardware platforms. This 1-meter \u003cstrong\u003eControlLogix redundancy fiber cable\u003c\/strong\u003e establishes direct, low-latency inter-module communication between separate 1756-RM or 1756-RM2 redundancy modules mounted in independent chassis. By facilitating continuous hardware state replication and synchronization signals, the assembly allows the backup controller to shadow the primary processor's control tasks, preventing operational disruption during a master unit switchover event.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eDedicated High-Availability Interface\u003c\/strong\u003e: Purpose-built for 1756-RM series modules to maintain uninterrupted data synchronization across high-availability controller pairings.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eOptimized Medium Length\u003c\/strong\u003e: Features a fixed 1-meter physical runtime to minimize optical path attenuation while providing sufficient routing tolerance between adjacent racks.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eFiber-Optic Core Isolation\u003c\/strong\u003e: Employs optical medium paths to deliver superior noise immunity against electromagnetic and radio frequency interference in harsh industrial plant configurations.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eRobust Connector Retention\u003c\/strong\u003e: Equipped with heavy-duty termination housings that interlock securely into the redundancy module interface ports to avoid accidental disconnections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eInterconnecting 1756-RM redundancy modules in synchronized dual-chassis Large PLC Systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eHigh-availability process backup controls within water treatment, power generation, and automotive assembly lines.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eCritical infrastructure control loops requiring seamless master-to-backup processor transitions with zero state loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCatalogue Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1756-RMC1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eComponent Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003ePLC \u0026amp; I\/O Accessory Cable\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProduct Line Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eControlLogix Redundancy\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eSpecific Function\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eConnector cable to 1756 Redundancy Modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCable Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1 Meter (1mt)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eTransmission Medium\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eFiber-Optic Core Assembly\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe 1756-RMC1 assembly is specifically dedicated to the ControlLogix redundancy module ecosystem. It is natively compatible with standard 1756-RM modules and 1756-RM2 high-availability hardware platforms. For installations requiring extended distances between control enclosures or across adjacent cabinets, alternative length variants within the same functional family—such as the 3-meter 1756-RMC3 or 10-meter 1756-RMC10 assemblies—must be used instead of splicing or altering this fiber runtime.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nA major engineering pitfall during deployment involves violating the physical bend radius parameters of the fiber-optic core inside wire duct channels. Forcing sharp 90-degree creases or crimping the cable bundle with overtightened plastic ties induces micro-bending losses, which degrade signal attenuation levels at the transceiver junctions and lead to synchronization dropouts or unrecoverable partner-loss faults. Additionally, ensure both fiber connector ferrule tips are carefully inspected and cleared of dust and grease prior to mating; using fouled interconnect paths can corrupt data validation packets, blocking the primary and backup systems from establishing a qualified synchronized state.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Never look directly into the transceivers of the redundancy modules or the uncoupled ends of the fiber cable terminations while the system is powered. Invisible laser or LED radiation may be present, posing a severe risk of permanent optical or eye tissue damage.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eLocate the primary and secondary 1756-RM redundancy modules seated in their corresponding master and backup ControlLogix chassis.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRemove the protective clean-room dust caps from the fiber connector ports on both redundancy modules.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eAlign the keying layout of the 1756-RMC1 cable connector with the matching receptor channel on the primary chassis redundancy unit.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInsert the interface connector firmly until it clicks and locks into place, ensuring the latch mechanism engages completely.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e5\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRoute the remaining 1-meter span through open wiring ducts, keeping smooth, loose turns, and connect the opposite side to the partner redundancy module.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695180640619,"sku":"1756-RMC1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-rmc1-controllogix-1-m-rm-fiber-optic-cable-zwekayxlvff_3c539e96-3343-4c82-9cae-bdb3488cec7d.jpg?v=1766114273","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1756-rmc1-controllogix-redundancy-fiber-cable","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}