{"product_id":"allen-bradley-1769-cll3-bus-expansion-cable","title":"Allen-Bradley 1769-CLL3 Bus Expansion Cable","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-CLL3\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-CLL3\u003c\/strong\u003e Bus Expansion Cable, operates as a dedicated hardware component for left-to-left rack interconnection within Allen-Bradley CompactLogix platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-CLL3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.38 kg (0.84 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1 m cable length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive bus extension (0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eCompact I\/O bus expansion (Left-to-Left)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1 m (3.28 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003e1769 backplane expansion connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and Deterministic Networks\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1769-CLL3 expansion cable maintains high-speed backplane bus communication velocity when bridging adjacent CompactLogix I\/O banks. Designed for EtherNet\/IP deterministic networks, the shielded physical layer prevents signal degradation across extended backplane distances. This link supports seamless I\/O density scaling and firmware flash compatibility between connected expansion racks, ensuring consistent data timing without introducing packet transmission latency.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can multiple 1769-CLL3 expansion cables be connected in series to extend bus reach?\u003c\/p\u003e\n\u003cp\u003eA: No, only one expansion cable is permitted per CompactLogix bank, and overall backplane distance and power supply limits must be observed.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1769-CLL3 cable pass backplane power between interconnected 1769 sub-racks?\u003c\/p\u003e\n\u003cp\u003eA: No, the expansion cable transmits system communication signals and logic data only; an additional 1769 expansion power supply is required on the secondary bank.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eTurn off all system power before plugging or unplugging the 1769-CLL3 cable from the backplane expansion ports.\u003c\/li\u003e\n\u003cli\u003eAlign the cable connectors straight with the 1769 bus expansion headers to avoid bending internal contact pins.\u003c\/li\u003e\n\u003cli\u003eTighten the integral connector locking screws to secure the cable end housings firmly to the module chassis.\u003c\/li\u003e\n\u003cli\u003eRoute the 1 m expansion cable away from high-voltage AC lines, variable frequency drives, and heavy inductive loads to prevent electromagnetic noise interference.\u003c\/li\u003e\n\u003cli\u003eEnsure the minimum bending radius of the cable jacket is maintained to avoid stress on the internal signal conductors.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52637829890328,"sku":"1769-CLL3","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1769-CLL3_Cocoai.jpg?v=1788920836","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1769-cll3-bus-expansion-cable","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}