{"product_id":"honeywell-51401996-100-enhanced-redundancy-assembly-board","title":"Honeywell 51401996-100 Enhanced Redundancy Assembly Board","description":"\u003cp\u003eConfigured for high-availability node arbitration and real-time failure tracking within distributed process control frameworks, the \u003cstrong\u003eHoneywell 51401996-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51401996-100\u003c\/strong\u003e Enhanced Redundancy Assembly Board (EAMR Card), provides direct physical\/electrical execution. It switches data paths and monitors active\/backup states natively at the chassis tier to sustain deterministic operations parallel to master control network platforms.\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\u003e51401996-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e2.0 kg (Approx. 4.41 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard multi-slot rack assembly module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eCalibrated for standard climate-controlled control room environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEAMR Assembly Card (Enhanced Redundancy Board)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Switching\u003c\/td\u003e\n\u003ctd\u003eMillisecond-tier hardware voting loop execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Interface\u003c\/td\u003e\n\u003ctd\u003eMulti-pin high-density male pin grid array\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDistributed Process Control and Channel Isolation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-Channel Isolation and Commutation Security:\u003c\/strong\u003e The assembly board uses high-speed optocouplers to establish physical channel-to-channel isolation between the master controller circuits and the redundant backup tracking loops. This configuration prevents an electrical failure or short-circuit on one module from crossing the backplane, protecting the secondary processor from common-mode faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART Loop Protocol Pass-Through Verification:\u003c\/strong\u003e The card architecture maintains separate signal paths to prevent high-frequency digital components from generating cross-talk. This layout ensures that as the board executes active\/backup switching, connected analog cards can parse 4-20 mA HART loop protocol diagnostics and multi-variable data fields without attenuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Junction Compensation Thermal Reference Stability:\u003c\/strong\u003e Local voltage rails and tracking traces feature low-drift thermal barriers that isolate sensitive components from temperature gradients inside the enclosure. These components keep internal timing clocks and reference tracking levels constant, avoiding data drift when reading values from adjacent thermocouple cards equipped with cold junction compensation (CJC).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What technical tracking behavior manifests on the node network during a primary controller processor fault?\u003c\/p\u003e\n\u003cp\u003eA: The EAMR board's hardware voting circuit detects the loss of the processor heartbeat instantly. It executes a hardware commutation routine, shifting the active control bus to the redundant backup card within millisecond thresholds while logging a diagnostic interrupt frame to the SCADA system.\u003c\/p\u003e\n\u003cp\u003eQ: Can this 2.0 kg enhanced redundancy board be hot-swapped while the primary DCS chassis is active and under load?\u003c\/p\u003e\n\u003cp\u003eA: No. The backplane bus interface connectors on this assembly do not have the staggered pin lengths or logic pre-charging circuits required for live handling. Extracting or inserting the card while powered can cause transient electrical arcs across the bus data tracks, risking damage to processing units and interrupting communication.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Layout Alignment, Clearance Constraints, and Mechanical Seating:\u003c\/strong\u003e Isolate all incoming primary AC and DC power distribution lines, turn off relevant branch breakers, and verify that an anti-static electrostatic discharge (ESD) wrist strap is bonded to an earth ground prior to installation. Position the board squarely over the designated chassis slot rails, push it straight back until the pins seat completely without bending, and lock the retaining levers to secure the board against cabinet vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation, Wireway Constraints, and Shield Grounding:\u003c\/strong\u003e Route all high-speed redundancy link cables and data wires inside separate, grounded wireways isolated from heavy AC motor wires or power lines to prevent inductive noise injection. Connect the main overall cable shield braids directly to the terminal enclosure's copper earth busbar to ensure stable telemetry transmission.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":47800221204670,"sku":"51401996-100","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-26_11-06-49_4b895626-0a30-4dde-9e59-5353ec63f2c5.png?v=1782444924","url":"https:\/\/www.autooiltech.com\/products\/honeywell-51401996-100-enhanced-redundancy-assembly-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}