{"product_id":"fio-relay-terminal-board-yokogawa-sarm55d","title":"FIO Relay Terminal Board | Yokogawa SARM55D","description":"\u003ch2\u003eYokogawa SARM55D FIO Relay Terminal Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete relay output interfacing in CENTUM VP and CENTUM CS 3000 FIO subsystem, the \u003cstrong\u003eYokogawa SARM55D\u003c\/strong\u003e (\u003cstrong\u003eSARM55D\u003c\/strong\u003e Relay Board \/ Terminal Board) provides direct physical\/electrical execution of 32-point dry contact switching between DCS output modules and field loads.\u003c\/p\u003e\n\u003cp\u003eThe module implements mechanical relay contact architecture with channel separation for low-level control signal conversion to external switching circuits. It is designed for rack-mounted installation with high-density terminal integration and redundant configuration support.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo suffix variants or extended ordering matrix information is defined for the SARM55D base model in the provided dataset. Configuration is treated as a single-standard 32-point relay terminal board design.\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 SARM55D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482.6 mm x 132.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProductType\u003c\/td\u003e\n\u003ctd\u003eRelay Output Terminal Board (FIO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003e32 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eMechanical relay dry contact (NO a contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Interface\u003c\/td\u003e\n\u003ctd\u003eM4 screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Compatibility\u003c\/td\u003e\n\u003ctd\u003eAKB331 (32-point), AKB337 (64-point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 10 MOhm at 500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e2 kV AC field-to-case (1 min), 500 V AC 24 V to case (1 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa DCS Field Interface Electrical Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe SARM55D implements channel-level galvanic separation between field wiring and internal FIO logic domain. Output switching is executed via mechanical relay contacts driven from ADV-series I\/O modules such as ADV561, ensuring physical isolation of control logic from field-side voltage transients. The terminal structure supports high-density routing of 32 discrete output channels with reduced cross-channel coupling within the rack backplane architecture.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the SARM55D support hot-swap replacement under live DCS operation?\u003cbr\u003eA: Hot-swap capability is not defined at relay terminal board level; replacement requires system-level isolation of FIO power and output loop de-energization.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum electrical isolation level between field terminals and internal circuitry?\u003cbr\u003eA: The insulation system is specified for 2 kV AC withstand between field terminals and case for 1 minute under standard test conditions.\u003c\/p\u003e\n\u003cp\u003eQ: Is channel-to-channel electrical isolation individually implemented?\u003cbr\u003eA: Isolation is primarily implemented between field-side and system-side domains; internal relay grouping governs channel separation behavior.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure all field wiring is terminated using M4 screw torque specifications consistent with industrial control cabinet standards. Maintain segregation between high-voltage switching lines and low-level signal routing to minimize induced noise coupling. Shielded cable grounding should be terminated at a single control panel earth reference point to avoid ground loop formation. Verify all relay output loops are de-energized prior to insertion or removal of the terminal board. Maintain minimum bend radius for AKB-series cables during rack integration to avoid mechanical stress on connector interfaces.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44214288056408,"sku":"SARM55D","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SARM55D.jpg?v=1781060944","url":"https:\/\/www.industriaxplc.com\/products\/fio-relay-terminal-board-yokogawa-sarm55d","provider":"IndustriaX Limited","version":"1.0","type":"link"}