{"product_id":"ek1122-0008-beckhoff-2-port-ethercat-junction-m8-connection","title":"EK1122-0008 BECKHOFF 2-Port EtherCAT Junction M8 Connection","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008 (EK 1122-0008)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized 2-port EtherCAT junction terminal engineered for rugged industrial environments where mechanical stability and vibration resistance are paramount. Designed to facilitate the branching of EtherCAT topologies, this module replaces standard RJ45 ports with two M8 shielded, screw-type interfaces. In high-dynamic applications such as robotic arms, mobile assembly platforms, and wind turbine pitch control, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures a gas-tight, secure physical connection. By enabling the creation of star or tree topologies within an EtherCAT segment, it allows for decentralized station coupling with a minimal internal delay of approximately 1 microsecond, maintaining the deterministic performance of the 100 Mbit\/s network.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a transparent junction within the EtherCAT system, requiring no manual software configuration or addressing. It utilizes the E-bus for its internal power supply, consuming typically 220 mA. The module is capable of driving 100BASE-TX signals over distances of up to 100 meters using shielded Cat.5 (or higher) cabling. Its architecture is specifically hardened for extreme conditions, featuring vibration and shock resistance according to EN 60068 standards. Furthermore, it carries extensive hazardous area certifications, including ATEX (Ex nA) and cFMus (Class I, Division 2), permitting deployment in explosive atmospheres where Zone 2 or Division 2 safety protocols are required.\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\u003eAttribute\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\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEK1122-0008\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBECKHOFF\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGermany\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBus Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 x M8 (Shielded, Screw Type)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtocol\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEtherCAT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eData Transfer Rate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100 Mbit\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDelay\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eapprox. 1 microsecond\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDistance between Stations\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMax. 100 m (100BASE-TX)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTyp. 220 mA (from E-bus)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to +60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (W x H x D)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 mm x 100 mm x 52 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e65 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApprovals\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCE, UL, ATEX, IECEx, cFMus\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy would I choose M8 connections over standard RJ45 for a junction?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe M8 screw-type connection on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides significantly higher mechanical security. Unlike RJ45 clips which can snap or vibrate loose, the M8 threaded coupling ensures the shield and data pins remain in constant contact even under high-frequency vibration or repetitive movement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the EK1122-0008 require its own IP address?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. As an EtherCAT junction, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis transparent to the network. The EtherCAT master automatically manages the data flow through the junction to any downstream devices without the need for manual configuration or IP assignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this junction be used to power downstream terminals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edraws its own power from the E-bus to drive the 2-port switch logic, but it is primarily a data coupling device. Ensure that your EtherCAT coupler (e.g., EK1100) has sufficient E-bus power capacity to support the 220 mA consumption of this junction plus all other attached ELxxxx terminals.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eM8 Connector Assembly and Shielding:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo maintain the required EMC immunity (conforming to EN 61000-6-2\/4), use only shielded M8 4-pin D-coded cables. Tighten the M8 screw-type connectors to the manufacturer’s recommended torque to ensure the shield makes a 360-degree connection with the terminal housing. This is critical in preventing data packet loss in high-interference environments typical of motor control centers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Area (Ex) Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor ATEX and cFMus Class I, Div 2 installations, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emust be installed in a tool-secured enclosure that provides at least IP54 protection. Ensure that the M8 cables are also rated for the environment and that the 35 mm DIN rail is connected to a clean functional earth. Under no circumstances should the M8 connectors be disconnected while the circuit is live in a hazardous atmosphere.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTopology Planning and Delay:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith a minimal internal delay of 1 microsecond, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEK1122-0008\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows for deep nesting of EtherCAT branches without significantly impacting the cycle time. When planning the network, keep in mind that the 100-meter distance limit applies to each segment (from the junction to the next station). Use the double slot and key connection to firmly mount the junction alongside other EtherCAT terminals to ensure E-bus continuity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106645500267,"sku":"EK1122-0008","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ek1122-0008-ycuyjmqba5i.png?v=1776244351","url":"https:\/\/www.plcprotech.com\/products\/ek1122-0008-beckhoff-2-port-ethercat-junction-m8-connection","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}