{"product_id":"1756-rm2xt-allen-bradley-controllogix-enhanced-redundancy-module","title":"1756-RM2XT | Allen-Bradley | ControlLogix Enhanced Redundancy Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2XT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-speed data synchronization between primary and secondary chassis in a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eControlLogix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eredundancy system. As an \"XT\" (Extended Temperature) module, it features specialized components to withstand harsher environmental conditions than standard automation hardware. This module ensures bumpless switchover during a controller or chassis failure, maintaining continuous process operation in mission-critical applications. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal hardware, ensuring your high-availability architecture operates with factory-certified precision and thermal resilience.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-RM2XT utilizes advanced fiber optic technology to maintain real-time chassis synchronization:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEnhanced Redundancy Module (XT Series)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFiber Optic Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle-channel (1)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Cable Length\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Kilometers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1300 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTransmission Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1000 Mbps (1 Gbps)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25°C to +70°C (-13°F to +158°F)*\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5.51 x 4.41 x 5.71 inches\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\u003e0.29 kg (0.64 lb)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWire Size\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 AWG (for grounding)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cem\u003eNote: While standard specs list 0-60°C, the XT designation officially supports expanded ranges up to 70°C when installed in appropriate XT chassis.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Distance Synchronization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1300 nm fiber optic interface supports cable runs up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 kilometers\u003c\/strong\u003e. This allows engineers to physically separate redundant chassis in different fire zones or remote control rooms to protect against localized disasters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBumpless Switchover Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1000 Mbps (1 Gbps) transmission speed ensures near-instantaneous data mirroring. During a fault, the 1756-RM2XT facilitates a switchover so fast that the field actuators and remote I\/O perceive no interruption in the control logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtended Thermal Durability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe XT-series construction utilizes robust internal components and superior heat dissipation designs. This solves the pain point of hardware failure in non-climate-controlled cabinets or extreme outdoor environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFiber Optic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy using fiber optics for chassis synchronization, the module provides total electrical isolation between redundant pairs. This eliminates ground loops and protects the control system from high-voltage surges or electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Redundancy Setup:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module handles complex synchronization tasks automatically. Once connected via fiber, it manages the scan list and data table mirroring without requiring manual code-heavy synchronization routines from the programmer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the 1756-RM2XT with a standard 1756-RM2 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. For a redundant pair to function correctly, both modules must share the same hardware series and firmware revision. We recommend using two 1756-RM2XT modules to ensure consistent thermal performance and synchronization timing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of fiber optic cable does this module require?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-RM2XT requires 62.5\/125 micron multi-mode fiber optic cable. Ensure you use high-quality LC-style connectors to maintain the 1000 Mbps transmission integrity over long distances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this module require a separate power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The 1756-RM2XT draws its power directly from the ControlLogix backplane. However, you must ensure the chassis power supply (such as a 1756-PA75R) provides sufficient current for the entire redundancy set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I choose the \"XT\" version over the standard 1756-RM2?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eChoose the 1756-RM2XT if your installation site experiences temperatures outside the standard 0-60°C range. The XT version specifically targets applications in oil and gas, mining, and remote pumping stations where environmental control is limited.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52800892240181,"sku":"1756-RM2XT","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1756-RM2XT.png?v=1777449426","url":"https:\/\/www.5gplc.com\/products\/1756-rm2xt-allen-bradley-controllogix-enhanced-redundancy-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}