{"product_id":"yokogawa-interface-card-rs81-b","title":"Yokogawa Interface Card RS81-B","description":"\u003cp\u003eConfigured for signal routing and communication management in process automation networks, the \u003cstrong\u003eYokogawa RS81-B\u003c\/strong\u003e (\u003cstrong\u003eRS81\u003c\/strong\u003e Interface Card) provides direct physical and electrical execution of data transmission between field instrumentation and control controllers.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe RS81-B represents the standard interface configuration for this hardware series. No additional modular suffix variations are applicable to the primary physical architecture of this specific interface unit.\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\u003eRS81-B\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 cm x 25.4 cm x 38.1 cm\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\u003e5 W (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eMulti-port serial\/parallel bridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe RS81-B supports 4-20 mA HART loop protocol integration to ensure seamless data exchange across the control backbone. The architecture utilizes channel-to-channel isolation to prevent ground loops and common-mode interference. Cold junction compensation (CJC) circuitry is embedded within the terminal assembly to ensure precise temperature reference for analog thermocouple inputs, maintaining signal integrity within the field bus environment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the RS81-B interface card be configured for redundant bus communication?\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided the host chassis and control software support dual-bus redundancy. The card handles physical layer data switching based on the primary controller status.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support hot-swapping during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: No. Disconnect all external field wiring and ensure the backplane power supply is terminated before attempting to remove or install the module to prevent electrical surges.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Insertion\u003c\/strong\u003e: Align the card guides with the chassis rails and apply steady pressure to engage the backplane connector. Ensure the locking tabs are fully engaged to prevent vibration-induced disconnections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding\u003c\/strong\u003e: Terminate cable shields to the dedicated ground bus provided on the chassis. Do not connect shields to the local enclosure ground unless specified by the site grounding diagram.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Practices\u003c\/strong\u003e: Maintain a minimum separation of 15 cm from high-voltage power cables to mitigate electromagnetic interference. Use shielded twisted-pair cabling for all signal connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: Install the module in a ventilated cabinet to ensure convective cooling. Maintain at least 5 cm of clearance above and below the module to allow for proper airflow.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49165116801276,"sku":"RS81-B","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/RS81-B1.jpg?v=1780624895","url":"https:\/\/www.electronicplc.com\/ar\/products\/yokogawa-interface-card-rs81-b","provider":"Electronic PLC","version":"1.0","type":"link"}