{"product_id":"tdc-3000-reserve-controller-switching-card-30735863-001","title":"TDC 3000 Reserve Controller Switching Card 30735863-001","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell 30735863-001\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as the critical hardware link within the Reserve Controller Director (RCD) subsystem of the TDC 2000 and TDC 3000 Distributed Control Systems (DCS). This switching card manages the physical transition between primary and backup controllers. By utilizing a high-density 16-relay array, it automates signal re-routing the moment the system detects a fault or requires scheduled maintenance. We provide this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring it meets the stringent timing and isolation requirements of mission-critical automation loops.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe following parameters define the operational limits and hardware capabilities of the 30735863-001:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30735863-001\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCard Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRelay-Based Switching \/ Interface Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRelay Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Integrated Industrial Relays\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDCS Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHoneywell TDC 2000 \/ TDC 3000 Platforms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReserve Controller Director (RCD) Switchover\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMulti-layer Rugged PCB with EMI Shielding\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Honeywell RCD Rack Mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Monitoring\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOn-board Diagnostic LED Indicators\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.00 lbs (0.45 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 30735863-001 addresses specific architectural challenges in legacy and modernizing DCS environments:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eZero-Downtime Failover:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 16-channel relay architecture executes nearly instantaneous transitions. This prevents process upsets during controller failures, maintaining continuous loop control in chemical, power, and refining applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Signal Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRelay-based switching provides physical galvanic isolation between the primary and reserve circuits. This protects the backup controller from the electrical faults that might have incapacitated the primary unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardened Industrial Build:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHoneywell engineered this PCB to withstand high electromagnetic interference (EMI) and mechanical vibration. The ruggedized traces and solder points resist thermal expansion fatigue in cabinets where temperatures fluctuate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Troubleshooting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated status indicators allow technicians to verify relay positions and logic paths at a glance, significantly reducing Mean Time to Repair (MTTR).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Honeywell 30735863-001 compatible with both TDC 2000 and 3000?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. This card serves as a universal switching component for Reserve Controller Directors across both the TDC 2000 and TDC 3000 ecosystems, facilitating seamless hardware upgrades or replacements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external power for the relay logic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe card draws its required logic and coil power directly from the RCD backplane. Always verify backplane power integrity before hot-swapping or installing new cards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this card handle high EMI environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 30735863-001 features industrial-grade shielding and filtered signal paths. These design elements prevent \"ghost\" switching or signal noise from affecting the sensitive I\/O logic during high-frequency interference events.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the condition of this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe supply this product in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New, original factory condition\u003c\/strong\u003e. It undergoes rigorous quality control to ensure it meets original Honeywell performance benchmarks for RCD switchover speed and reliability.\u003c\/p\u003e","brand":"HONEYWELL","offers":[{"title":"Default Title","offer_id":43685438586979,"sku":"30735863-001","price":240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/558._45657a8c-ef29-440d-bef3-5cccc1934630.jpg?v=1778729416","url":"https:\/\/www.autocontrolglobal.com\/products\/tdc-3000-reserve-controller-switching-card-30735863-001","provider":"AutoControl Global","version":"1.0","type":"link"}