{"product_id":"fc-tsdi-1648-honeywell-16-channel-digital-input-module","title":"FC-TSDI-1648 Honeywell 16-Channel Digital Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eFC-TSDI-1648\u003c\/strong\u003e is a Honeywell Field Termination Assembly (FTA) that provides a secure, current-limited interface for 16 digital input signals. Optimized for high-voltage loops in Class I, Division 2 hazardous locations, it transfers field data safely via SICC-0001\/Lx system interconnection cables to a redundant pair of SDI-1648 safety modules.\u003c\/p\u003e\n\n\u003ch2\u003eCore Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePTC Protection:\u003c\/strong\u003e Employs Positive Temperature Coefficient resistors to isolate short circuits and prevent full 16-channel dropouts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRedundancy Design:\u003c\/strong\u003e Direct hardware mapping matches with redundant pair SDI-1648 safety cards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Connections:\u003c\/strong\u003e Heavy-duty screw terminals lock down field wires against vibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Profile:\u003c\/strong\u003e Space-saving chassis mounts smoothly onto standard industrial DIN EN rails.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eData\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eModel Numbers\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003eFC-TSDI-1648 \/ FS-TSDI-1648\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e16 Channels\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e48 V DC (-15% to +15%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e≤ 8 mA at 48 V DC (with redundant SDI-1648 load)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003ePTC Base Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e1900 Ω ±25% at 25°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003ePTC Steady State Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003eTypical 17 mA ±35% at 48 V DC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eDimensions \/ Rail Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e90 × 70 × 58 mm \/ 91 mm rail length requirement\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eDIN Rail Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003eTS32 \/ TS35 × 7.5 profile rails\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003eCE, TUV, UL, CSA\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation \u0026amp; Field Termination\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Wire Size:\u003c\/strong\u003e Accepts solid or stranded conductors up to 2.5 mm² (AWG 14).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStrip \u0026amp; Torque:\u003c\/strong\u003e Strip wire casing back to 7 mm (0.28 in) and tighten screws to 0.5 Nm (0.37 ft.-lb).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Layout:\u003c\/strong\u003e Ensure proper ventilation within the cabinet enclosure to maintain predictable PTC current response times.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the main operational advantage of PTC protection over standard fuses?\u003c\/strong\u003e\u003cbr\u003e\nA1: Standard fuses blown by short circuits require manual replacement. PTC resistors act as self-resetting safety links that automatically restore channel operation once the short-circuit fault is cleared from the field line.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: Why does the 48V model (FC-TSDI-1648) consume less current than the 24V model?\u003c\/strong\u003e\u003cbr\u003e\nA2: Higher voltage loops require less nominal current (≤ 8 mA vs ≤ 15 mA) to drive signals over long cable runs, reducing line loss over extreme field wiring distances.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: What does the \"C\" prefix represent on Honeywell modules?\u003c\/strong\u003e\u003cbr\u003e\nA3: It indicates conformal coating applied directly onto the printed circuit boards, protecting vulnerable soldering pads from moisture, salt spray, and corrosive chemical gases.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":51884895240324,"sku":"FC-TSDI-1648","price":251.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/FC-TSDI-1648.jpg?v=1779540432","url":"https:\/\/www.etowonauto.com\/de\/products\/fc-tsdi-1648-honeywell-16-channel-digital-input-module","provider":"Etowon Auto","version":"1.0","type":"link"}