{"product_id":"allen-bradley-1746-ig16-16-channel-5v-dc-ttl-sourcing-input-module","title":"Allen-Bradley 1746-IG16 SLC 500 16-Channel 5V DC TTL Sourcing Input Module","description":"\u003cp\u003eThe Allen-Bradley 1746-IG16 is a 16-channel digital input module engineered for the SLC 500 platform. Designed specifically for low-voltage applications, this module supports 5V DC TTL (Transistor-Transistor Logic) and BCD signal levels. It provides a reliable interface for high-speed electronic sensors, microcontrollers, and encoders that require current-sourcing input capabilities.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSixteen (16) independent current-sourcing input channels.\u003c\/li\u003e\n\u003cli\u003eOptimized for high-speed response with signal delays of 0.25 ms (ON) and 0.5 ms (OFF).\u003c\/li\u003e\n\u003cli\u003eIntegrated electro-optical isolation rated at 1500V AC to protect the SLC backplane from electrical interference.\u003c\/li\u003e\n\u003cli\u003eCompact design for seamless integration into standard SLC 500 chassis configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is ideal for industrial environments where standard 24V DC or 120V AC input modules are unsuitable due to voltage level requirements or switching speed constraints. It is frequently utilized in precision positioning systems, high-speed counting applications, and interfacing with TTL-compatible electronic logic controllers.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003e5V DC TTL (Sourcing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e4.5 to 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay (ON)\u003c\/td\u003e\n\u003ctd\u003e0.25 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay (OFF)\u003c\/td\u003e\n\u003ctd\u003e0.5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd\u003e140 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e1 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eHandle the module using proper ESD (electrostatic discharge) prevention practices to protect internal circuitry.\u003c\/li\u003e\n\u003cli\u003eSecure the module firmly into the designated slot in the chassis and tighten the retaining screws to ensure proper backplane connection.\u003c\/li\u003e\n\u003cli\u003eRoute signal wiring away from high-voltage cables and heavy inductive loads to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eVerify that the external 5V DC source is within the specified 4.5–5.5V range to ensure correct logic operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat type of signals does the 1746-IG16 accept?\u003c\/h3\u003e\u003cp\u003eThis module is designed for 5V DC TTL and BCD signals. It acts as a current-sourcing input module, meaning it provides the necessary current to the input device.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with standard 24V sensors?\u003c\/h3\u003e\u003cp\u003eNo. The 1746-IG16 is specifically rated for 5V DC logic levels. Connecting 24V DC signals will result in damage to the module. Use appropriate voltage level shifting if 24V signals must be interfaced with this module.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43983189573722,"sku":"1746-IG16","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_5de79b19-03e5-4572-bf9e-79c9e157dfc1.jpg?v=1788244182","url":"https:\/\/www.spareoil.com\/ar\/products\/allen-bradley-1746-ig16-16-channel-5v-dc-ttl-sourcing-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}