{"product_id":"triconex-ao3481-s2-triconex-tmr-analog-output-module","title":"TRICONEX AO3481 S2 Triconex TMR Analog Output Module","description":"\u003ch2\u003eTRICONEX AO3481 S2 TMR Analog Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTRICONEX AO3481 S2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAO3481 S2\u003c\/strong\u003e TMR Analog Output Module, operates as a dedicated hardware component for safety-critical analog loop manipulation within Triconex safety instrumented system platforms. Configured for redundant field device execution, the assembly translates internal system logic commands into distinct physical current loops, managing final control elements via dedicated voting circuits to sustain plant process boundary control under active fault conditions.\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\u003eAO3481 S2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTRICONEX\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\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.5 cm x 18.8 cm x 20.8 cm (H x W x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +50 deg C (baseplate operating profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHandled via Triconex backplane (24 VDC nominal external loop power, 32 VDC max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Points\u003c\/td\u003e\n\u003ctd\u003e4 points, common-return, DC-coupled architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Range\u003c\/td\u003e\n\u003ctd\u003e0-22 mA (standard mode), 4-40 mA (extended mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver-Range Protection\u003c\/td\u003e\n\u003ctd\u003eContinuous up to 36 VDC, with 44 mA over-range drive capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Accuracy\u003c\/td\u003e\n\u003ctd\u003eLess than 0.25 percent of Full Scale Range (FSR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Barrier\u003c\/td\u003e\n\u003ctd\u003eInternal channel-to-channel and channel-to-bus galvanic isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaseplate Compatibility\u003c\/td\u003e\n\u003ctd\u003eModel 2481 (standard), Model 2483 \/ 2483A (HART-enabled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundancy Safety Integration Technical Attributes\u003c\/h3\u003e\n\u003cp\u003eThe hardware implements a proprietary Triple Modular Redundancy (TMR) 2oo3 architecture to satisfy high-integrity automation requirements up to SIL3 certification limits. Three fully isolated internal processing channels independently compute the output data stream, routing the resultant values to parallel output legs where hardware voter circuitry determines the final current value injected into the 4-20 mA field loop.\u003c\/p\u003e\n\u003cp\u003eAn embedded forced-switch diagnostic (FSD) engine continuously evaluates the execution status of each processing leg, calculating component drifts and internal failures without interrupting the active process loops. If a single channel leg shifts outside operational tolerances, the module achieves fail-safe state execution by isolating the damaged path within a leg failure switch time of 1-3 ms typical, allowing uninterrupted process control through the remaining functional TMR pairs.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the restrictions regarding hot-spare module replacement during active process operations?\u003c\/p\u003e\n\u003cp\u003eA: The chassis supports manual online replacement via an adjacent hot-spare slot on the compatible Model 2481 or 2483 baseplate. Insertion triggers automatic background database synchronization and firmware validation, transferring active execution to the spare assembly without disrupting the physical 4-20 mA field terminal outputs.\u003c\/p\u003e\n\u003cp\u003eQ: How does the integrated mechanical keying design prevent field installation errors?\u003c\/p\u003e\n\u003cp\u003eA: The rear terminal housing features physical alignment slots keyed to match the structural guidance rails of specific Triconex analog output baseplates. This mechanical configuration blocks insertion into slots assigned for digital I\/O or CPU processor units, protecting internal backplane logic pins from electrical mismatch damage.\u003c\/p\u003e\n\u003cp\u003eQ: Can the analog output channels process HART variables concurrently with the safety loop?\u003c\/p\u003e\n\u003cp\u003eA: Yes, when mated with a Model 2483 or 2483A baseplate, the module allows bi-directional HART digital signal transmission superimposed over the standard analog current loop, facilitating asset management without undermining the deterministic 2oo3 safety architecture.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaseplate Retention Lock:\u003c\/strong\u003e Slide the module along the guide tracks of the compatible baseplate until the rear connection block seats firmly against the backplane pins, then tighten the faceplate retention fasteners to secure the unit against vibration-induced displacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Power Termination:\u003c\/strong\u003e Connect the nominal 24 VDC external loop supply to the dedicated termination panel terminals, ensuring over-range protection values do not exceed the 36 VDC continuous hardware limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Matrix:\u003c\/strong\u003e Terminate the copper braided shields of all 4-20 mA field cables at the external termination panel ground bus bar, keeping the shield continuity isolated from intermediate junction box metal structures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow Clearance Layout:\u003c\/strong\u003e Maintain unhindered vertical cabinet space above and below the baseplate assembly to ensure natural thermal convection through the open chassis architecture, keeping the internal environment within the 0 to +50 deg C operational envelope.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":43744113131610,"sku":"3481 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/216._79543b05-3161-4579-ac16-2f0b3a5a4827.jpg?v=1785200356","url":"https:\/\/www.spareoil.com\/products\/triconex-ao3481-s2-triconex-tmr-analog-output-module","provider":"SpareOil Automation","version":"1.0","type":"link"}