{"product_id":"allen-bradley-1769-ecrk-compactlogix-right-end-cap-terminator","title":"Allen Bradley 1769-ECRK CompactLogix Right End Cap Terminator","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1769-ECRK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the mandatory bus terminator for any\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCompactLogix 1769\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eI\/O assembly. This Right End Cap completes the internal communication bus, enabling the controller to identify the end of the physical rack and maintain signal integrity across all connected modules. Without this component, the system will not initialize or execute logic. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal factory equipment, ensuring your automation rack functions with zero bus communication errors.\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\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\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1769 Compact I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRight End Cap \/ Bus Terminator\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAll 1769-based CompactLogix Controllers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConformal Coated (K-version)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to 60°C (32°F to 140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temp Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40°C to 85°C (-40°F to 185°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\u003e1.7 x 0.9 x 2.0 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\u003e0.05 kg (0.11 lbs)\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\u003eBus Signal Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1769-ECRK terminates the I\/O bus signals to prevent wave reflection. This hardware-level termination ensures the processor accurately scans every module in the local rack, preventing intermittent \"I\/O Fault\" codes caused by open-ended communication loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConformal Coating for Harsh Environments:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \"K\" suffix indicates that this module features a factory-applied conformal coating. This protective layer shields the internal termination resistors from moisture, salt spray, and corrosive atmospheric pollutants typical in wastewater treatment and chemical processing plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eZero-Footprint Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMeasuring only\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0.9 inches in width\u003c\/strong\u003e, this terminator occupies negligible space on the DIN rail. It slides directly into the right-most I\/O module, locking the entire assembly into a rigid, vibration-resistant block.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePassive Hardware Reliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs a passive termination component, the 1769-ECRK requires no external power or software configuration. Once snapped into place, it immediately stabilizes the backplane impedance, solving the common industrial pain point of bus instability in high-vibration machinery.\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\u003eWhy does my CompactLogix controller show a \"Bus Fault\" even with all modules connected?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe system requires a Right End Cap like the 1769-ECRK to complete the circuit. If you leave the right side of the last I\/O module exposed, the communication bus remains open, and the controller will refuse to enter \"Run\" mode.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1769-ECRK with a standard 1769-L32E or L35E controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1769-ECRK is compatible with all 1769 CompactLogix and Compact I\/O systems. It functions as the universal terminator for the right side of the expansion bus regardless of the specific processor model.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 1769-ECR and the 1769-ECRK?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1769-ECRK provides identical electrical termination but adds a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econformal coating\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto the internal circuit board. Use the \"K\" version if your control cabinet resides in an environment with high humidity or corrosive gases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a new or used part?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal part. We ship each 1769-ECRK in its original Allen Bradley factory-sealed box, ensuring the pins and the conformal coating remain in pristine, uncompromised condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52804914741557,"sku":"1769-ECRK","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1769-ECRK.png?v=1777535313","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1769-ecrk-compactlogix-right-end-cap-terminator","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}