{"product_id":"1769-crl3-allen-bradley-compactlogix-expansion-cable","title":"1769-CRL3 Allen-Bradley CompactLogix Expansion Cable","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Allen-Bradley \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e is a high-performance bus expansion cable designed to extend the connectivity of CompactLogix and MicroLogix 1500 controller systems. This 1-meter (3.28 ft) cable facilitates the connection between two separate banks of I\/O modules, specifically linking the right side of one bank to the left side of the next. By maintaining backplane communication integrity over extended distances, the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e allows for flexible enclosure layouts and complex system architectures.\u003c\/p\u003e\n\u003ch2\u003eTechnical Configuration \u0026amp; Hardware Architecture\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e acts as a physical extension of the internal 1769 backplane. It is engineered to carry both the logic signals and the power distribution necessary for remote I\/O banks to function as a single, cohesive system.\u003c\/p\u003e\n\u003ch3\u003eRight-to-Left Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe cable features specialized connectors: one end attaches to the right-side bus interface of an existing I\/O bank, while the other connects to the left-side bus interface of the expansion bank. This specific orientation ensures that the data flow remains synchronized across modular boundaries.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Grade Shielding\u003c\/h3\u003e\n\u003cp\u003eTo combat the noise typical of motor drives and heavy machinery, the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e is constructed with multi-layered insulation. This robust hardware architecture prevents signal degradation, even when the cable is routed near high-voltage components in a crowded control panel.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; background-color: #f2f2f2; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 8px; background-color: #f2f2f2; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eCable Length\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1 Meter (3.28 Feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eConnection Type\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eRight Bank to Left Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eBackplane Current\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1.4 Amps @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e33.6 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e7.5 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.35 kg (0.77 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eInstallation \u0026amp; Engineering Guide\u003c\/h2\u003e\n\u003cp\u003eProper cable management is essential when deploying the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e to ensure long-term system reliability.\u003c\/p\u003e\n\u003ch3\u003eMechanical Routing\u003c\/h3\u003e\n\u003cp\u003eWhen installing the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e, avoid sharp bends that exceed the minimum bend radius of the cable. Secure the connectors using the integrated locking screws to prevent accidental disconnection caused by machine vibration.\u003c\/p\u003e\n\u003ch3\u003ePower Distribution Requirements\u003c\/h3\u003e\n\u003cp\u003eEach I\/O bank connected via the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e must have its own 1769-PA2, -PB2, -PA4, or -PB4 power supply if the total current draw exceeds the limit of the primary supply. Always calculate the backplane current budget before finalizing the installation.\u003c\/p\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Layouts:\u003c\/strong\u003e Enables the distribution of I\/O modules across multiple DIN rails or separate enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Connectivity:\u003c\/strong\u003e Provides low-impedance pathways for reliable high-speed data transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable Power Delivery:\u003c\/strong\u003e Maintains consistent voltage levels, ensuring connected devices operate within their specified parameters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Can I use the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e to connect two controllers?\u003c\/strong\u003e\u003cbr\u003eA1: No. The \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e is strictly for expanding I\/O banks. It connects the backplane of one bank to another within a single controller system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Is this cable \"Hot-Swappable\"?\u003c\/strong\u003e\u003cbr\u003eA2: No. You must remove all system power before connecting or disconnecting the \u003cstrong style=\"color: #003366;\"\u003e1769-CRL3\u003c\/strong\u003e. Failure to do so can result in electrical damage to the bus connectors or the controller.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: How many expansion cables can I use in one system?\u003c\/strong\u003e\u003cbr\u003eA3: CompactLogix systems generally support up to 3 banks of I\/O (using 2 cables), provided the distance and power supply requirements are met. Check your specific controller's maximum I\/O bank limit.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51047658782852,"sku":"1769-CRL3","price":127.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1769-CRL3.jpg?v=1776585662","url":"https:\/\/www.etowonauto.com\/tk\/products\/1769-crl3-allen-bradley-compactlogix-expansion-cable","provider":"Etowon Auto","version":"1.0","type":"link"}