{"product_id":"yokogawa-s9981de-02-backplane-interface-unit","title":"Yokogawa S9981DE-02 | Backplane Interface Unit","description":"\u003ch2\u003eYokogawa S9981DE-02 Backplane Interface Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for inter-module communication and backplane signal distribution in industrial control chassis, the \u003cstrong\u003eYokogawa S9981DE-02\u003c\/strong\u003e (\u003cstrong\u003eS9981DE-02\u003c\/strong\u003e Backplane Interface Unit) provides direct physical\/electrical execution within Yokogawa STARDOM and distributed control architectures. The unit functions as a slot-based mechanical and electrical interconnect structure for I\/O and communication modules.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa S9981DE-02\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\u003eApprox. 1.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482 mm (W) x 210 mm (H) x 220 mm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e10-Slot Backplane \/ Interface Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 10 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Types\u003c\/td\u003e\n\u003ctd\u003eThermocouples, RTDs, voltage, current, digital signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 16 channels (system configuration dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel isolation architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa Process Interface and Backplane Architecture\u003c\/h3\u003e\n\u003cp\u003eThe S9981DE-02 implements a modular backplane structure for deterministic inter-module communication across Yokogawa control platforms. Signal routing is handled through a passive\/active slot interconnect scheme depending on system configuration, supporting mixed-signal I\/O modules within a unified chassis.\u003c\/p\u003e\n\u003cp\u003eWithin Yokogawa distributed control environments, the backplane design aligns with channel isolation requirements for process signal integrity, including suppression of cross-channel coupling and ground loop effects. Integration with analog and digital I\/O modules supports standard industrial signal formats such as 4-20 mA loops and voltage-based measurement inputs. Backplane segmentation ensures controlled signal referencing across module boundaries in multi-channel acquisition systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the S9981DE-02 support hot-swapping of I\/O modules?\u003cbr\u003eA: Hot-swap capability is determined by the installed I\/O modules and system controller. The backplane itself provides physical slot connectivity without enforcing switching logic.\u003c\/p\u003e\n\u003cp\u003eQ: Is channel isolation handled at the backplane level or module level?\u003cbr\u003eA: Isolation is implemented primarily at the I\/O module level, while the backplane supports structural separation and controlled signal routing between slots.\u003c\/p\u003e\n\u003cp\u003eQ: Can mixed signal types be used simultaneously across slots?\u003cbr\u003eA: Yes. The backplane architecture supports simultaneous installation of modules handling thermocouple, RTD, voltage, current, and digital inputs, subject to system configuration rules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall unit only in a grounded industrial control cabinet with proper DIN rail or rack support.\u003c\/li\u003e\n\u003cli\u003eMaintain separation between power cabling and signal wiring to reduce electromagnetic coupling.\u003c\/li\u003e\n\u003cli\u003eEnsure backplane connectors are fully seated without mechanical stress on slot interfaces.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for analog and low-level signal modules, with shield termination at designated grounding points.\u003c\/li\u003e\n\u003cli\u003eVerify enclosure ventilation conditions match system-level thermal requirements before energizing modules.\u003c\/li\u003e\n\u003cli\u003eAvoid contamination of slot connectors; inspect for dust or oxidation prior to module insertion.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44163872096344,"sku":"S9981DE-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/S9981DE-02-3.jpg?v=1780307068","url":"https:\/\/www.industriaxplc.com\/products\/yokogawa-s9981de-02-backplane-interface-unit","provider":"IndustriaX Limited","version":"1.0","type":"link"}