{"product_id":"allen-bradley-1769-ig16-compactlogix-16-point-ttl-input-module","title":"Allen-Bradley 1769-IG16 CompactLogix 16-Point TTL Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eIn discrete manufacturing and process control environments, reliable input sensing is the foundation of accurate machine logic. The Allen-Bradley 1769-IG16 CompactLogix 16-point TTL input module delivers dependable digital input performance for CompactLogix systems. This module accepts 16 current-sourcing low-to-true inputs and operates within a 4.5 to 5.5 V DC range, making it ideal for TTL-level signals common in high-speed counting, position feedback, and interlock circuits.\u003c\/p\u003e\u003cp\u003eAs part of the CompactLogix family, the 1769-IG16 integrates seamlessly with Allen-Bradley controllers and is available in Series A and B revisions. Its compact single-slot design saves panel space while offering robust electrical isolation and flexible mounting options.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe table below lists the key technical parameters for the Allen-Bradley 1769-IG16, sourced directly from the manufacturer's data.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1769-IG16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eCompactLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003e16 Point TTL Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eTTL Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e30 V AC \/ 30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Voltage Range\u003c\/td\u003e\n\u003ctd\u003e4.5 to 5.5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Delay\u003c\/td\u003e\n\u003ctd\u003e8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple Voltage\u003c\/td\u003e\n\u003ctd\u003e50 mV peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Current\u003c\/td\u003e\n\u003ctd\u003e120 mA at 5.1 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e1.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e2.0 to 5.5 V DC at 4.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e2 to 5.5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e75 V DC (reinforced, tested at 1697 V DC for 1 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistance Rating\u003c\/td\u003e\n\u003ctd\u003e8 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Type\u003c\/td\u003e\n\u003ctd\u003eCopper, 90 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size (Solid)\u003c\/td\u003e\n\u003ctd\u003e22-14 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 °C (-40 to 185 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude\u003c\/td\u003e\n\u003ctd\u003eUp to 2000 m (6561 ft) without derating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Rating\u003c\/td\u003e\n\u003ctd\u003e30 G operational\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rating\u003c\/td\u003e\n\u003ctd\u003e5 G at 10 to 500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e250 g (0.55 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e8 x 8 x 5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Terminal Block\u003c\/td\u003e\n\u003ctd\u003e1769-RTBN18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1769-IG16 is well-suited for applications requiring fast, TTL-level digital input detection. Typical uses include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-speed counting:\u003c\/strong\u003e In packaging or material handling lines, the module's 8 ms input delay and 4.5-5.5 V DC range ensure accurate pulse counting from encoders or proximity sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterlock circuits:\u003c\/strong\u003e In machine safety circuits, the 1769-IG16 provides reliable low-to-true input sensing, helping maintain safe operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess control:\u003c\/strong\u003e In chemical or food processing plants, the module monitors discrete sensors (e.g., limit switches, photoelectric sensors) with TTL outputs, feeding status back to the CompactLogix controller.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBecause the 1769-IG16 supports both AC and DC working voltages (30 V AC\/DC), it offers flexibility in mixed-voltage environments.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the 1769-IG16 on a DIN rail or panel using the integrated mounting holes. The module occupies a single slot in the CompactLogix chassis. When wiring, use copper wire rated for 90 °C, with solid wire sizes from 22 to 14 AWG. The recommended terminal block is the 1769-RTBN18. Tighten terminal screws to 6 lb-in. Ensure proper isolation: the module provides 75 V DC isolation between input points and the backplane, tested at 1697 V DC for 1 second.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eTo maximize uptime, follow a simple maintenance routine. Periodically inspect wiring connections for looseness or corrosion. Check the operating environment stays within -40 to 85 °C and 5-95% non-condensing humidity. The module withstands up to 30G shock and 5G vibration (10-500 Hz), so it is robust for most industrial settings. Because the 1769-IG16 is a current product, replacement parts and support remain available, reducing lifecycle risk.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1769-IG16 is designed for CompactLogix controllers and is compatible with Series A and B backplanes. It supports up to 8 modules in a power supply distance rating, allowing flexible system expansion. The module communicates over the CompactLogix backplane; no separate communication cable is needed beyond the terminal block wiring.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your system's power supply capacity and backplane slot availability. Confirm the input voltage range matches your sensor outputs (4.5-5.5 V DC). For replacements, check the revision (A or B) to ensure compatibility with your existing firmware. The 1769-IG16 includes a replacement terminal block (1769-RTBN18) for convenience. For a reliable source, consider PLC Source PRO for genuine Allen-Bradley parts.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44438663397475,"sku":"1769-IG16","price":234.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1769-ADN_2b84ce21-233f-4f41-9e88-534db4cd60df.jpg?v=1785841248","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1769-ig16-compactlogix-16-point-ttl-input-module","provider":"PLC Source PRO","version":"1.0","type":"link"}