{"product_id":"1769-ecr-terminator-module-allen-bradley-right-bus-cap-new","title":"1769-ECR Terminator Module Allen-Bradley Right Bus Cap New","description":"\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e\u003c\/strong\u003e is a functional electronic terminator for the 1769 Compact I\/O chassis.\u003c\/li\u003e\n  \u003cli\u003eIn Allen-Bradley architecture, it completes the FlexBus communication loop for the CPU.\u003c\/li\u003e\n  \u003cli\u003eWithout the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e\u003c\/strong\u003e, the controller cannot recognize any modules on the backplane.\u003c\/li\u003e\n  \u003cli\u003eIt prevents signal reflection on high-speed data lines, ensuring clean and synchronized logic signals.\u003c\/li\u003e\n  \u003cli\u003eThis component is the definitive requirement for a qualified and operational CompactLogix assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInfrastructure Architecture: Bus Termination\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e\u003c\/strong\u003e functions as the electrical \"period\" at the end of your PLC configuration.\u003c\/li\u003e\n  \u003cli\u003eIt terminates the internal FlexBus circuitry to stabilize high-frequency signaling.\u003c\/li\u003e\n  \u003cli\u003eThe unit is constructed for 19-inch rack or panel mounting with high shock resistance.\u003c\/li\u003e\n  \u003cli\u003eEngineered with a specific 5 mA draw to power the active termination resistors within the cap.\u003c\/li\u003e\n  \u003cli\u003eIts presence is a mandatory hardware requirement for all 1769-series modular controllers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Performance Matrix\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cstrong\u003eAllen-Bradley \/ Rockwell Automation\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e Right End Cap Module \/ Bus Terminator.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBus Current Draw:\u003c\/strong\u003e 5 mA at 5.1V DC (Max).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Altitude:\u003c\/strong\u003e 2000 meters (6562 feet) for high-altitude industrial sites.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0 to 60 °C (32 to 140 °F) ambient.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Rating:\u003c\/strong\u003e 5 g operating vibration at 10–500 Hz.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock Rating:\u003c\/strong\u003e 20 g (DIN rail mount) or 30 g (Panel mount).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Open style (Requires IP54 enclosure for Zone 2 environments).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 130 g (0.286 lb).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eEquipment Integration \u0026amp; Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompactLogix Controllers:\u003c\/strong\u003e Essential for L30, L31, L32, and L35 modular CPUs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1769 Expansion Racks:\u003c\/strong\u003e Must be installed on the last module of any expansion bank.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote I\/O Adapters:\u003c\/strong\u003e Required for 1769-ADN or 1769-AENT distributed systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHazardous Locations:\u003c\/strong\u003e T3C temperature code rated for North American industrial standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Security:\u003c\/strong\u003e Protects the exposed FlexBus pins from dust and physical damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDiagnostic \u0026amp; Installation Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexBus Termination:\u003c\/strong\u003e Closes the signal loop to prevent data packet corruption.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBus Lever Logic:\u003c\/strong\u003e Features a mechanical locking lever to ensure electrical contact stability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlignment Slots:\u003c\/strong\u003e Integrated guide rails prevent pin misalignment during assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eController Feedback:\u003c\/strong\u003e The PLC logic identifies the terminator to confirm I\/O rack integrity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Power must be removed during installation; RIUP is strictly not supported.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eLogistics, Warranty, and Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty Policy:\u003c\/strong\u003e 12-month comprehensive professional technical warranty included.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDispatch Window:\u003c\/strong\u003e Ready for global shipment within 24 to 48 hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpress Delivery:\u003c\/strong\u003e Priority transit available via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, or \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Original manufacturer standard, current product status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eProfessional FAQ \u0026amp; Procurement Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eCan I use a standard cover instead of a 1769-ECR?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eNo. A standard cover lacks the termination resistors required to close the electrical circuit.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eIs the \u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e compatible with both Series A and B modules?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eYes, it is designed to be universally compatible with all 1769 Compact I\/O hardware versions.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWhy does the PLC show an I\/O fault even with the cap installed?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eEnsure the bus lever is fully engaged; even a slight misalignment will prevent the bus from closing.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eDoes this module consume a slot on the backplane?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eNo, the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e1769-ECR\u003c\/span\u003e\u003c\/strong\u003e attaches to the side of the last module and does not count against your I\/O slot limit.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWhat are the storage requirements for spares?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eStore in a non-condensing environment between -40 to 85 °C to preserve the termination circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45014041657526,"sku":"1769-ECR","price":158.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1769-ECR_56d78af0-e34f-413c-962d-339990b95c9a.jpg?v=1777025938","url":"https:\/\/www.plcsparehub.com\/products\/1769-ecr-terminator-module-allen-bradley-right-bus-cap-new","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}