{"product_id":"allen-bradley-1771-igd-ttl-output-module","title":"Allen Bradley 1771-IGD TTL Output Module","description":"\u003ch1\u003eAllen-Bradley\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IGD\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL Input Module\u003c\/h1\u003e\n\u003ch2\u003eGeneral Information\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRockwell Automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAllen-Bradley\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number \/ Catalog No.:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IGD\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTTL Input Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Inputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5 Volts DC, TTL\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDC Operating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5.0–5.3 Volts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e130 mA @ 5 VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Status:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEarlier Model\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Arm:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WH\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRack Mountable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLogic \u0026amp; Signal\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLogic State:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSelectable Positive or Negative Logic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Voltage Rating:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePositive Logic: On = 2.0–5.25 VDC, Off = -0.2–0.8 VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNegative Logic: On = -0.2–0.8 VDC, Off = 2.0–5.25 VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible 1771 Chassis:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSeries A or B: 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, 1771-A4B\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible I\/O Chassis:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1771-AM1, 1771-AM2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Delay:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026lt;1 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTypical DC Signal Delay:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOn \u0026lt;1 ms, Off 20 ±9 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTypical AC Signal Delay (Off):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24 ±10 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMax DC Off-State Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eN\/A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePower \u0026amp; Thermal Specifications\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.4–2.7 Watts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.4–9.2 BTU\/hr\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1500 V AC RMS (1 second)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFuse Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.5 A, 250 V Normal Blow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEnvironmental Specifications\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0–60°C (32–131°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHumidity Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5–95% non-condensing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Allen-Bradley\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IGD\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance TTL input module from the 1771 Product line, offering sixteen 5 V DC TTL current-sourcing inputs. It requires a customer-supplied 5 V DC power source with ±0.25 V and less than 50 mV peak-to-peak ripple.\u003c\/p\u003e\n\u003cp\u003eThe module supports selectable logic states. By default, it operates in positive logic, detecting Logic 1 (On) at 2.0–5.25 V DC and Off at -0.2–0.8 V DC. Negative logic can be configured via jumper settings, reversing the On\/Off voltage ranges.\u003c\/p\u003e\n\u003cp\u003eDesigned for compatibility, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IGD\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eworks with Series A or B 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, 1771-A4B chassis, as well as 1771-AM1 or 1771-AM2 I\/O chassis. Signal termination requires the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewiring arm and 14 AWG stranded copper wire, with a maximum insulation thickness of 3\/64 inch (1.2 mm). Recommended cable: Belden 8761 or equivalent, with terminal torque of 9 lb-in (1.0 N·m).\u003c\/p\u003e\n\u003cp\u003eThe module provides fast input response (\u0026lt;1 ms), reliable thermal and power dissipation, and includes 18 LED indicators for quick monitoring of module and logic status. With a robust design, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-IGD\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures accurate and reliable TTL input performance in industrial environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":50615590256936,"sku":"1771-IGD","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/1771-IGDA1.jpg?v=1756973590","url":"https:\/\/www.powerdcs.com\/products\/allen-bradley-1771-igd-ttl-output-module","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}