{"product_id":"honeywell-10302-2-1-fsc-series-watchdog-repeater-module","title":"Honeywell 10302\/2\/1 FSC Series Watchdog Repeater Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIntegrating directly into safety-critical system topologies, the \u003cstrong\u003eHoneywell 10302\/2\/1\u003c\/strong\u003e Watchdog Repeater (WDR) acts as a signal replication and distribution node within Honeywell Fail Safe Control (FSC) safety environments. This specialized Eurocard module is engineered to regenerate and extend critical watchdog diagnostic signals, guaranteeing safety-loop integrity across multiple power supply boundaries and high-current demands. The unit is vital for maintaining the safety integrity level of the control system by continuously verifying system health across non-redundant and redundant system segment boundaries.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-PSU Coordination:\u003c\/strong\u003e Required in multi-power supply configurations for each subsequent 24 Vdc to 5 Vdc power supply unit (including PSU 2, 3, and 4 setups).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Voltage Threshold Tolerances:\u003c\/strong\u003e Explicitly required when the secondary 24 Vdc line is supplied via M24-20 HE or M24-12 HE power sources, or any supply that exceeds 31.0 Vdc up to a maximum fault threshold of 37 Vdc.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Boost Capacity:\u003c\/strong\u003e Intervenes automatically when the system's total watchdog current draw exceeds 900 mA.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHybrid I\/O Isolation:\u003c\/strong\u003e Creates and distributes the necessary watchdog output signals for non-redundant I\/O modules operating alongside redundant central architectures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary 5 Vdc Monitoring:\u003c\/strong\u003e Monitors 5 Vdc power rails in configurations with redundant Central Parts and non-redundant I\/O if native 5 Vdc diagnostic monitoring is absent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHoneywell Fail Safe Control (FSC) architectures.\u003c\/li\u003e\n  \u003cli\u003eEmergency Shutdown (ESD) systems and Fire and Gas (F\u0026amp;G) safety loops.\u003c\/li\u003e\n  \u003cli\u003eInterfaced power distribution racks containing M24-series high-efficiency power units.\u003c\/li\u003e\n  \u003cli\u003eMixed safety-redundancy networks requiring segmented watchdog loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 12px; font-weight: bold;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 12px; font-weight: bold;\"\u003eValue \/ Rating\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e10302\/2\/1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eAssociated Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3400126\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModule Type Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12600\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eRequired Software Version\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eRevision 3.00 or higher\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSpace Requirements\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e4 TE, 3 HE (4 HP wide, 3U high standard Eurocard)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCurrent Consumption (5 Vdc)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e35 mA (excluding external WDROUT output current)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCurrent Consumption (24 Vdc)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e25 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInput Signal Current (WDG1 + WDG2)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.1 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePhysical Module Keying\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eHoles at locations A5 and A9\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePhysical Rack Keying\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eLarge pins at locations A5 and A9\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNet Module Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.12 kg (0.26 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1.50 kg (3.30 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSafety Certificates \u0026amp; Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCE, TÜV, UL\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 10302\/2\/1 functions as a drop-in replacement for legacy hardware iterations of the 3400126 series. However, engineers must verify that the FSC system software\/firmware is compiled at or above Version 3.00. Mixing older revisions within subracks containing newer watchdog distributions can result in erratic signal recognition due to subtle changes in internal logic thresholds.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eA common design mistake is utilizing power supplies that allow voltage levels to fluctuate past 37.0 Vdc during transient or double fault conditions. The maximum output voltage of the feeding 24 Vdc supply must be strictly limited to under 37 Vdc. Exceeding this value can permanently damage the internal optical isolation elements of the WDR module, defeating the safety separation barriers between the redundant CPU and non-redundant I\/O subracks.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBefore inserting the 10302\/2\/1 module into the subrack, verify the physical coding keying. The module uses guide holes at A5 and A9 to accept large keying pins on the rack backplane. Forceful insertion without verifying alignment will bend the gold-plated Eurocard pin connections, causing intermittent watchdog faults or complete module failure. Ensure the chassis ground connections of the backplane are bonded directly to a low-impedance master safety ground to eliminate signal noise on WDG1 and WDG2 inputs.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-weight: bold;\"\u003eCRITICAL WARNING: SAFETY DE-ENERGIZATION\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 5px 0 0 0;\"\u003eAlways completely isolate and de-energize the safety subrack and auxiliary power supplies (5 Vdc and 24 Vdc loops) prior to module insertion or removal. Hot-swapping this module in safety-active systems can cause a temporary loss of the watchdog logic signal, inducing an immediate, uncontrolled safe-state trip of all connected field actuators.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; margin-top: 2px;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003e\u003cstrong\u003eVerify Backplane Alignment:\u003c\/strong\u003e Match the A5 and A9 guide pins on the safety backplane with the corresponding receiver holes on the 10302\/2\/1 Eurocard.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; margin-top: 2px;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003e\u003cstrong\u003eInsert and Seat:\u003c\/strong\u003e Slide the module smoothly along the subrack card guides until the DIN connector fully mates with the backplane. Secure the front panel fasteners to prevent vibrational displacement.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; margin-top: 2px;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003e\u003cstrong\u003eValidate Power Paths:\u003c\/strong\u003e Power up the 5 Vdc and 24 Vdc rails sequentially. Confirm that the input current draw on WDG1\/WDG2 matches the nominal design thresholds.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705316307307,"sku":"10302\/2\/1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1030221-dzsbuzcyrcj_b435cd0a-ab7c-4c88-8a56-26f20cae5f06.jpg?v=1766639648","url":"https:\/\/www.plcprotech.com\/ms\/products\/honeywell-10302-2-1-fsc-series-watchdog-repeater-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}