{"product_id":"eb401-50-yokogawa-er-bus-interface-module-new-original-stock","title":"EB401-50 Yokogawa ER Bus Interface Module | New \u0026 Original Stock","description":"\u003cp\u003eConfigured for high-speed network management in DCS platforms, the \u003cstrong\u003eYokogawa EB401-50\u003c\/strong\u003e (\u003cstrong\u003eEB401-50\u003c\/strong\u003e ER Bus Interface Master Module) provides direct physical\/electrical execution of ER bus protocol arbitration and node communication.\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\u003eEB401-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa I\/O card form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eConsult system environmental specifications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.7 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.3 10BASE-2 (1 port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e10 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Segment Length\u003c\/td\u003e\n\u003ctd\u003e185 meters (using YCB141 cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eNetwork Communication and Protocol Arbitration\u003c\/h3\u003e\n\u003cp\u003eThe module operates as the primary master device on the ER bus, orchestrating data traffic between local and remote nodes. It utilizes the IEEE 802.3 10BASE-2 physical layer standard to ensure deterministic data exchange at 10 Mbps. By managing the bus arbitration logic, the module maintains strict adherence to the ER bus protocol timing requirements, facilitating coordinated communication across distributed control hardware.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the 185-meter distance limitation absolute for all cable types?\u003c\/p\u003e\n\u003cp\u003eA: The 185-meter limit is specified for the YCB141 coaxial cable, which matches the characteristic impedance and attenuation requirements of the 10BASE-2 standard. Exceeding this length without a repeater may result in signal degradation and packet collision errors.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support auto-negotiation for data speeds?\u003c\/p\u003e\n\u003cp\u003eA: No, the EB401-50 is fixed at a 10 Mbps communication speed as dictated by the 10BASE-2 standard and the requirements of the ER bus protocol.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the BNC connector is fully seated and locked to prevent impedance mismatches or signal intermittent contact.\u003c\/li\u003e\n\u003cli\u003eVerify that the 10BASE-2 segment is correctly terminated at both ends with 50 Ohm resistors to prevent signal reflections on the coaxial bus.\u003c\/li\u003e\n\u003cli\u003eKeep the coaxial cable path clear of electromagnetic interference (EMI) sources, such as large motors or variable frequency drives, to maintain data integrity.\u003c\/li\u003e\n\u003cli\u003eConfirm that the module is correctly configured as the bus master within the control system software to avoid bus contention issues.\u003c\/li\u003e\n\u003cli\u003eAfter physical installation, utilize network diagnostic tools to confirm the link status and ensure that no frame check sequence (FCS) errors are reported at the 10 Mbps data rate.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49174477209852,"sku":"EB401-50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/EB401-10_S1.jpg?v=1780538178","url":"https:\/\/www.electronicplc.com\/ar\/products\/eb401-50-yokogawa-er-bus-interface-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}