{"product_id":"beckhoff-ep9128-0021-ethercat-box-junction","title":"BECKHOFF EP9128-0021 EtherCAT Box Junction","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF EP9128-0021\u003c\/strong\u003e is an 8-port EtherCAT junction module designed for branching EtherCAT topologies in demanding industrial environments. This EtherCAT Box enables the configuration of flexible line, star, or tree topologies directly in the field, reducing cabling overhead and eliminating the need for protective control cabinets. It distributes the EtherCAT signal to up to eight separate junctions using standard shielded M8 connections.\u003c\/p\u003e\n\u003cp\u003eHoused in a compact, polyamide enclosure, the \u003cstrong\u003eBECKHOFF EP9128-0021\u003c\/strong\u003e offers excellent environmental resistance with an IP65\/66\/67 rating. Its decentralized design supports high-speed industrial data transfer up to 100 Mbit\/s with a minimal propagation delay of approximately 1 microsecond per port. This makes it suitable for complex machine configurations where fieldbus nodes are widely distributed.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e8-port EtherCAT junction for flexible star, tree, or line topology distribution.\u003c\/li\u003e\n  \u003cli\u003eShielded M8 connection technology providing reliable signal transmission under mechanical stress.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed data transfer rates of 100 Mbit\/s conforming to Fast Ethernet standards.\u003c\/li\u003e\n  \u003cli\u003eLow propagation delay of approximately 1 microsecond per port.\u003c\/li\u003e\n  \u003cli\u003eHigh protection class (IP65, IP66, and IP67) for direct machine mounting without control cabinets.\u003c\/li\u003e\n  \u003cli\u003eCompact, space-saving PA6 polyamide housing with pre-drilled mounting holes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDecentralized fieldbus topology design for modular production machinery.\u003c\/li\u003e\n  \u003cli\u003eStar-branching of EtherCAT networks in packaging, assembly, and material handling systems.\u003c\/li\u003e\n  \u003cli\u003eField-level sensor\/actuator integration in high-vibration or washdown environments.\u003c\/li\u003e\n  \u003cli\u003eDistributed network routing over long distances of up to 100 meters between communication stations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"width: 50%;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"width: 50%;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSystem and Communication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtocol\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTask within System\u003c\/td\u003e\n      \u003ctd\u003eCoupling of EtherCAT junctions\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eData Transfer Rate\u003c\/td\u003e\n      \u003ctd\u003e100 Mbit\/s\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDelay Time\u003c\/td\u003e\n      \u003ctd\u003eApprox. 1 microsecond per port\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eData Transfer Medium\u003c\/td\u003e\n      \u003ctd\u003eEthernet\/EtherCAT cable (minimum Category 5), shielded\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDistance Between Stations\u003c\/td\u003e\n      \u003ctd\u003eMaximum 100 meters (100BASE-TX)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd colspan=\"2\"\u003e\u003cstrong\u003eElectrical Requirements\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNominal Power Supply\u003c\/td\u003e\n      \u003ctd\u003e24 V DC (-15% \/ +20%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption (24 V DC)\u003c\/td\u003e\n      \u003ctd\u003eApprox. 150 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePhysical and Connection Details\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBus Interface\u003c\/td\u003e\n      \u003ctd\u003e8 x M8 sockets, shielded, screw type\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Method\u003c\/td\u003e\n      \u003ctd\u003eM8, screw type, 4-pin\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n      \u003ctd\u003e60 mm x 126 mm x 26.5 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEnclosure Material\u003c\/td\u003e\n      \u003ctd\u003ePA6 (polyamide)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eApprox. 300 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd colspan=\"2\"\u003e\u003cstrong\u003eEnvironmental and Compliance\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n      \u003ctd\u003e-25 to +60 Celsius\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n      \u003ctd\u003e-40 to +85 Celsius\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Rating\u003c\/td\u003e\n      \u003ctd\u003eIP65, IP66, IP67 (conforms to EN 60529)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVibration \/ Shock Resistance\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEMC Immunity \/ Emission\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals and Markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"width: 50%;\"\u003eInterface Type\u003c\/th\u003e\n      \u003cth style=\"width: 50%;\"\u003eFunction\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e8 x M8 Sockets (Screw-type, 4-pin)\u003c\/td\u003e\n      \u003ctd\u003eShielded EtherCAT junction ports for incoming and outgoing communication paths\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Supply Connections\u003c\/td\u003e\n      \u003ctd\u003eFieldside feed-in for logic and sensor power supply\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eVerify that the system power supply is completely de-energized before mounting or wiring the device.\u003c\/li\u003e\n  \u003cli\u003eSecurely mount the module directly to the machine frame or mounting plate using the integrated fixing holes (2 x 3.5 mm holes for M3 screws or 2 x 4.5 mm holes for M4 screws).\u003c\/li\u003e\n  \u003cli\u003eUse only shielded, Category 5 (or higher) Ethernet\/EtherCAT cabling suitable for industrial M8 screw connectors to prevent electromagnetic interference.\u003c\/li\u003e\n  \u003cli\u003eEnsure that all M8 connectors are tightened to their rated torque to maintain the IP65\/66\/67 environmental protection standard.\u003c\/li\u003e\n  \u003cli\u003eConnect the supply voltage to the designated power pins, verifying correct polarity (24 V DC) before energizing the system.\u003c\/li\u003e\n  \u003cli\u003eVerify communication status using the integrated diagnostic LED indicators during initial system startup.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106469863787,"sku":"EP9128-0021","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ep9128-0021-xlhy43w5mtd.png?v=1776244692","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-ep9128-0021-ethercat-box-junction","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}