{"product_id":"fc81-a-yokogawa-centum-xl-hf-bus-coupler-module","title":"FC81-A YOKOGAWA CENTUM XL HF Bus Coupler Module","description":"\u003ch2\u003eYOKOGAWA FC81-A HF Bus Coupler Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed data exchange between controllers and HF devices in CENTUM XL and Micro XL networks, the \u003cstrong\u003eYOKOGAWA FC81-A\u003c\/strong\u003e (\u003cstrong\u003eFC81\u003c\/strong\u003e Bus Communication Control Card) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe internal manufacturing designation determines the specific hardware revision and backplane compatibility constraints for this communication block:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFC81: Base model code indicating the High-speed Fieldbus (HF) bus communication control architecture.\u003c\/li\u003e\n\u003cli\u003e-A: Type revision specifier indicating standard high-frequency network physical layer termination.\u003c\/li\u003e\n\u003cli\u003eS9713BM-02: Assigned sub-assembly part code defining the specific component revision and layout optimization of the internal PC board.\u003c\/li\u003e\n\u003c\/ul\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\u003eFC81-A (S9713BM-02)\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\u003e0.70 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25.4 cm x 5.1 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 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSupplied via system rack backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eHigh-speed Fieldbus (HF) network interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eLegacy CENTUM XL and Micro XL control stations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Execution\u003c\/td\u003e\n\u003ctd\u003eCentralized communication control card architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Barrier\u003c\/td\u003e\n\u003ctd\u003eEmbedded transformer-coupled line isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Communication Architecture\u003c\/h3\u003e\n\u003cp\u003eThe hardware executes active signal filtering while enforcing physical channel-to-system isolation barriers, managing deterministic token passing over legacy High-speed Fieldbus (HF) segments to prevent network latency spikes. The integrated instrumentation circuits support the 4-20 mA HART loop protocol layer indirectly through upstream gateway links, while this card directly handles the high-frequency backbone routing between distributed engineering nodes and primary process racks. The physical layer employs dedicated transceiver circuits designed to suppress cross-talk across co-axial field bus paths, maintaining strict packet delivery structures without taxing the main control station memory mapping.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the FC81-A module be deployed within modern CENTUM VP system architectures?\u003c\/p\u003e\n\u003cp\u003eA: No. The FC81-A is a dedicated legacy hardware interface built strictly for the electrical and protocol specifications of CENTUM XL and Micro XL backplanes. It cannot communicate with newer CENTUM VP control stations or modern FIO\/RIO network fabrics.\u003c\/p\u003e\n\u003cp\u003eQ: What indicates a localized physical layer failure on the HF bus control line?\u003c\/p\u003e\n\u003cp\u003eA: Internal hardware check routines monitor signal attenuation levels. A drop in network line voltage below the designated receiver threshold triggers an onboard hardware exception flag, signaling the master controller that data packet parity can no longer be verified.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Slot Alignment\u003c\/strong\u003e: Verify the alignment pins match the legacy rack slot parameters perfectly before seating the card, pressing firmly to lock the gold-plated edge connectors into the system backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoaxial Network Termination\u003c\/strong\u003e: Install matching character impedance coaxial terminators at both physical ends of the HF bus loop, preventing signal reflection from corrupting high-frequency data packets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic Shield Separation\u003c\/strong\u003e: Route all HF network cables through dedicated metal conduits, ensuring the outer shielding links to an isolated instrument ground bar rather than safety earth paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Thermal Balancing\u003c\/strong\u003e: Maintain unblocked ventilation spacing around the communication card array within the enclosure to manage internal heat levels and protect the legacy capacitor networks.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43664916316250,"sku":"FC81-A","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/556_1caa3044-693f-49f7-915f-c4d51edce466.jpg?v=1784170233","url":"https:\/\/www.spareoil.com\/ar\/products\/fc81-a-yokogawa-centum-xl-hf-bus-coupler-module","provider":"SpareOil Automation","version":"1.0","type":"link"}