{"product_id":"beckhoff-cu1128-1005-8-port-ethercat-junction-module","title":"Beckhoff CU1128-1005 8-Port EtherCAT Junction Module","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe Beckhoff CU1128-1005 is an 8-port EtherCAT junction module designed to expand and organize industrial EtherCAT networks with maximum flexibility. It enables line, tree, and star network topologies while maintaining deterministic real-time communication. Supporting hot-connect functionality and distributed clocks, the module is ideal for complex automation and motion control applications.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 470.251px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eBeckhoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eIndustrial Networking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eCU1128-1005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eEtherCAT Junction Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eTask in System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eCoupling of EtherCAT junctions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eTransmission Medium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eShielded Ethernet\/EtherCAT cable (Cat.5 or higher)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eBus Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e8 × RJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eData Transfer Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e100 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eDelay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eApprox. 1 µs per port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e24 VDC (18–30 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e185 mA (typ.), 140 mA from HW version 08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eDistributed Clocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e35 mm DIN rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e122 × 100 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eApprox. 430 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e-25°C to +60°C (HW08), previously 0°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eUp to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eProtection Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eVibration\/Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eEN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eEMC Standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eEN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.3754%; height: 19.5938px;\"\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.261%; height: 19.5938px;\"\u003eCE, EAC, UKCA, cULus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eCU1128-1005\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"373\" data-end=\"1286\"\u003eThe CU1128-1005 is a Beckhoff EtherCAT junction device that provides eight RJ45 ports for coupling EtherCAT segments in line, tree, or star topologies. It allows multiple EK1100 couplers or EtherCAT Box modules to be connected simultaneously and includes direct LED indicators for link and activity status. Operating at 100 Mbit\/s, it ensures low-latency communication with delays of approximately 1 µs per port. The unit is powered by 24 VDC (18–30 VDC range) and consumes up to 185 mA, with improved efficiency from hardware version 08 onward. Its rugged industrial design includes vibration and shock resistance, EMC compliance to EN 61000-6-2\/-6-4, and an IP20 protection class for installation in control cabinets. With support for distributed clocks and hot-connect functionality, the CU1128-1005 is an essential networking module for large and complex EtherCAT automation systems.\u003c\/p\u003e\n\u003cp data-end=\"150\" data-start=\"131\"\u003e\u003cstrong data-end=\"148\" data-start=\"131\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1167\" data-end=\"2109\"\u003e\n\u003cli data-section-id=\"l2b1u2\" data-start=\"1167\" data-end=\"1292\"\u003eEight RJ45 EtherCAT Ports: Connects up to eight EtherCAT network segments while supporting line, tree, and star topologies.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14k3esh\" data-start=\"1293\" data-end=\"1415\"\u003eHot-Connect Support: Allows EtherCAT branches to be added or removed during operation without shutting down the network.\u003c\/li\u003e\n\u003cli data-section-id=\"77vm4o\" data-start=\"1416\" data-end=\"1541\"\u003eReal-Time Communication: Transfers data at 100 Mbit\/s with approximately 1 µs delay per port for deterministic performance.\u003c\/li\u003e\n\u003cli data-section-id=\"11hj59j\" data-start=\"1542\" data-end=\"1667\"\u003eDistributed Clocks: Maintains precise synchronization between connected EtherCAT devices for motion and automation control.\u003c\/li\u003e\n\u003cli data-section-id=\"409zvh\" data-start=\"1668\" data-end=\"1762\"\u003eWide Power Input: Operates from a 24 VDC supply with an acceptable input range of 18–30 VDC.\u003c\/li\u003e\n\u003cli data-section-id=\"1nv6qt8\" data-start=\"1763\" data-end=\"1891\"\u003eIndustrial-Grade Construction: Designed to withstand vibration, shock, and electromagnetic interference in harsh environments.\u003c\/li\u003e\n\u003cli data-section-id=\"ys4m1b\" data-start=\"1892\" data-end=\"2005\"\u003eCompact DIN Rail Design: Mounts easily on standard 35 mm DIN rails while minimizing cabinet space requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"1ky9sk6\" data-start=\"2006\" data-end=\"2109\"\u003eCertified Reliability: Complies with CE, EAC, UKCA, and cULus standards for industrial installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2111\" data-end=\"2305\"\u003eThe CU1128-1005 delivers the reliability and precision required for expanding EtherCAT networks, synchronizing distributed devices, and supporting high-performance industrial automation systems.\u003c\/p\u003e","brand":"Beckhoff","offers":[{"title":"Default Title","offer_id":50511927247146,"sku":"CU1128-1005","price":569.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_4872b08e-b6ea-4f4b-b11f-2e2edb1e7756.webp?v=1755585355","url":"https:\/\/iqelectro.com\/products\/beckhoff-cu1128-1005-8-port-ethercat-junction-module","provider":"IQElectro","version":"1.0","type":"link"}