{"product_id":"allen-bradley-1771-ig-ttl-input-module-8-channel-digital-interface","title":"Allen-Bradley 1771-IG TTL Input Module - 8 Channel Digital Interface","description":"\u003ch2\u003eAllen-Bradley 1771-IG TTL Input Module - High-Speed Digital Interface\u003c\/h2\u003e\n\u003cp\u003eConnect TTL devices to your PLC-5 system with the \u003cstrong\u003e1771-IG module\u003c\/strong\u003e. This digital input module provides fast response times for precision control applications. Requires 5V DC power supply for TTL signal transmission.\u003c\/p\u003e\n\u003ch3\u003eMain Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-fast \u0026lt;1ms response time\u003c\/li\u003e\n\u003cli\u003e8 TTL-compatible input channels\u003c\/li\u003e\n\u003cli\u003eEasy replacement with wiring arm\u003c\/li\u003e\n\u003cli\u003eOptoelectrical isolation protection\u003c\/li\u003e\n\u003cli\u003eCompact single-slot design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley\/Rockwell Automation\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e 1771-IG Series A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e Digital DC Input (TTL)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 8 Points\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Level:\u003c\/strong\u003e 5V DC TTL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Range:\u003c\/strong\u003e 5.0-5.3V DC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eResponse Time:\u003c\/strong\u003e \u0026lt;1ms On \/ 20ms Off\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 122mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Supply:\u003c\/strong\u003e 500mA Maximum\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 3.3W Maximum\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation:\u003c\/strong\u003e Optoelectrical\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCoating:\u003c\/strong\u003e Conformal Coated\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Arm:\u003c\/strong\u003e 1771-WC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAddressing:\u003c\/strong\u003e ½, 1, or 2-slot\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 11.3 BTU\/hr\u003c\/p\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cp\u003eSingle slot in 1771 I\/O chassis\u003c\/p\u003e\n\u003cp\u003eUses 1771-WC wiring arm\u003c\/p\u003e\n\u003cp\u003eKeying bands: pins 34-36 \u0026amp; 4-6\u003c\/p\u003e\n\u003cp\u003eRequires external 5V DC power supply\u003c\/p\u003e\n\u003ch3\u003eCompatible Equipment\u003c\/h3\u003e\n\u003cp\u003eTTL interface devices\u003c\/p\u003e\n\u003cp\u003eBCD encoders\u003c\/p\u003e\n\u003cp\u003eDigital sensors\u003c\/p\u003e\n\u003cp\u003ePLC-5 control systems\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e1771-IG TTL Input Module\u003c\/p\u003e\n\u003cp\u003e1771-WC Wiring Arm\u003c\/p\u003e\n\u003cp\u003eInstallation documentation\u003c\/p\u003e\n\u003ch3\u003eService \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong style=\"color: #2e86ab;\"\u003e12 Month Quality Guarantee\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGlobal delivery: FedEx, UPS, DHL\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supplies does this module need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1771-IG requires both backplane power from the chassis and an external 5V DC power supply for TTL signal operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum response speed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module offers very fast response with less than 1 millisecond signal delay for high-speed applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this with AC voltage devices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the 1771-IG is designed specifically for 5V DC TTL signals and cannot operate with AC voltage inputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many input points are available?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module provides 8 individual TTL input points, each with its own status indicator for easy monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of protection is included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module features optoelectrical isolation and input filtering to protect against electrical noise and transients.\u003c\/p\u003e\n\u003cp\u003e© 2025 Ubest Automation Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e | \u003ca href=\"https:\/\/wa.me\/868618030005825\"\u003e+86 86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51195011236122,"sku":null,"price":173.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1771-IG_3.jpg?v=1760058614","url":"https:\/\/www.ubestplc.com\/fa\/products\/allen-bradley-1771-ig-ttl-input-module-8-channel-digital-interface","provider":"Ubest Automation Limited","version":"1.0","type":"link"}