{"product_id":"honeywell-fs-sdi-1624-digital-input-module","title":"Honeywell FS-SDI-1624 Digital Input Module","description":"\u003cp\u003eConfigured for 16-channel binary signal acquisition in Honeywell Safety Manager systems, the \u003cstrong\u003eHoneywell FS-SDI-1624\u003c\/strong\u003e (\u003cstrong\u003eFS-SDI-1624\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution.\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\u003eFS-SDI-1624\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.30 lbs (0.14 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4 TE, 3 HE (standard rack size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via internal backplane and field supply (7 mA per channel @ 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 discrete channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (36 VDC maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Thresholds\u003c\/td\u003e\n\u003ctd\u003eHIGH state \u0026gt; 15 VDC; LOW state \u0026lt; 9 VDC (current \u0026lt; 2 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay\u003c\/td\u003e\n\u003ctd\u003e10 ms typical filter delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Keying\u003c\/td\u003e\n\u003ctd\u003eConnector coding holes A5, C5 (module); Pins A5, C5 (chassis)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGalvanic Isolation and 4-20 mA HART Loop Protocol Integration\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates dedicated per-channel galvanic isolation barriers that electrically isolate individual field input circuits from backplane logic and adjacent channels. This isolation architecture blocks high-voltage common-mode surges, preventing field ground loops from compromising central processor safety execution. When deployed alongside analog safety loops carrying 4-20 mA HART loop protocol signals in the same enclosure, the isolated digital input channels prevent inductive switching transients from corrupting real-time process variable telemetry.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the FS-SDI-1624 support both internal and external 24 VDC field power sources?\u003c\/p\u003e\n\u003cp\u003eA: Yes, field power distribution for the 16 input loops can be configured via internal rack power rails or supplied through external isolated 24 VDC power sources.\u003c\/p\u003e\n\u003cp\u003eQ: How do the physical connector keying pins protect against incorrect rack insertion?\u003c\/p\u003e\n\u003cp\u003eA: The chassis interface utilizes mechanical keying pins at positions A5 and C5 that align exclusively with matching coding holes on the FS-SDI-1624 module, preventing accidental installation into incompatible slot locations.\u003c\/p\u003e\n\u003cp\u003eQ: What are the input voltage thresholds for logic state detection on this module?\u003c\/p\u003e\n\u003cp\u003eA: An input signal voltage greater than 15 VDC registers as a logic HIGH state, while a voltage below 9 VDC (with current under 2 mA) registers as a logic LOW state.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that chassis connector coding pins at positions A5 and C5 are correctly oriented before inserting the module into the 4 TE, 3 HE rack slot.\u003c\/li\u003e\n\u003cli\u003eSlide the module smoothly along the guide rails until the backplane connectors fully lock into the card cage receptacle.\u003c\/li\u003e\n\u003cli\u003eFasten the top and bottom panel retention screws to ensure continuous mechanical chassis grounding.\u003c\/li\u003e\n\u003cli\u003eRoute external 24 VDC field input wiring through designated low-voltage trunking, maintaining separation from high-voltage AC distribution circuits.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52827936555304,"sku":"FS-SDI-1624","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/FS-SDI-1624.png?v=1790148518","url":"https:\/\/www.powerdcs.com\/ar\/products\/honeywell-fs-sdi-1624-digital-input-module","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}