{"product_id":"1492-ifm40ds120a-4-allen-bradley-1492-series-digital-interface-module","title":"1492-IFM40DS120A-4 | Allen-Bradley | 1492 Series Digital Interface Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1492-IFM40DS120A-4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-density digital interface module designed to bridge PLC I\/O modules with field-side devices. This 40-pin module optimizes cabinet space by consolidating complex wiring into a streamlined, fixed terminal block architecture. It specifically handles 120V AC digital signals and incorporates advanced diagnostic features, such as blown fuse indicators, to minimize system downtime. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and factory-original\u003c\/strong\u003e, ensuring maximum electrical conductivity and long-term terminal integrity for your automation control panels.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1492-IFM40DS120A-4 utilizes a specialized layout to manage isolated extra terminals and high-voltage AC signals.\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\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital Interface Module (IFM)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePin Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 Pins\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFixed Terminal Block\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLED Status Indication\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBlown Fuse Indicators for Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWiring Layout\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFour Isolated Terminals per I\/O Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1492 Wiring Systems\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\u003e0.60 lbs (0.27 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\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Diagnostic Feedback:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated LED indicators provide real-time visual status for each I\/O point. This feature allows technicians to identify failed circuits at a glance without probing individual terminals with a multimeter, significantly accelerating site maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Input Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module features an isolated extra terminal with a dedicated blown fuse indicator for input channels. This safeguard isolates electrical faults at the interface level, preventing surges from reaching and damaging expensive PLC I\/O cards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Wiring Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 40-pin design allows for a massive reduction in point-to-point manual wiring. By using pre-wired cables to connect the PLC to this IFM, you eliminate the risk of cross-wiring and reduce labor costs during panel assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClean Signal Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \"four per I\/O\" terminal configuration provides dedicated paths for signal, return, and extra isolated connections. This architecture reduces electromagnetic interference (EMI) and crosstalk between adjacent 120V AC circuits, ensuring logic stability in electrically noisy environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1492-IFM40DS120A-4 support DC voltage?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Allen-Bradley specifically engineered this module for 120V AC digital circuits. Applying DC voltage or different AC levels may prevent the LED indicators from functioning correctly or cause premature component failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I identify a blown fuse on this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module includes dedicated blown fuse indicators. When a fuse fails, the corresponding diagnostic LED illuminates or changes state (depending on your configuration), allowing you to pinpoint the exact input channel requiring service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the terminal block removable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1492-IFM40DS120A-4 features a fixed terminal block design. This ensures the highest level of mechanical vibration resistance, as there are no removable plug-in connectors that could loosen over time in high-impact industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit a \"New-Old-Stock\" or a current production item?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRegardless of its current production cycle status at the OEM, we guarantee this unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e. It arrives in its original factory packaging with pristine terminal screws and zero evidence of previous rail mounting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52847855272245,"sku":"1492-IFM40DS120A-4","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1492-IFM40DS120A-4.png?v=1778225484","url":"https:\/\/www.5gplc.com\/products\/1492-ifm40ds120a-4-allen-bradley-1492-series-digital-interface-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}