{"product_id":"1769-og16-allen-bradley-compactlogix-16-point-ttl-output-module","title":"1769-OG16 Allen-Bradley CompactLogix 16-Point TTL Output Module","description":"\u003ch3\u003e\u003cb\u003eProduct Overview\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1769-OG16\u003c\/strong\u003e is a 16-channel TTL discrete digital output module designed by \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e for the \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1769-compactlogix\"\u003e\u003cstrong style=\"color: #0056b3;\"\u003eCompactLogix\u003c\/strong\u003e\u003c\/a\u003e control system. Operating on low-voltage 5V DC logic, this compact unit provides direct high-speed digital switching between controller backplane logic and external transistor-transistor logic (TTL) field hardware.\u003c\/p\u003e\n\u003cp\u003eFeaturing active high\/low switching levels, the \u003cstrong style=\"color: #0056b3;\"\u003e1769-OG16\u003c\/strong\u003e delivers guaranteed ON-state output logic at 0.0–0.4V DC and guaranteed OFF-state logic at 4.5–5.5V DC. Designed for micro-electronic interfacing, each point drives up to 24 mA load current with a minimum current threshold of 0.15 mA, eliminating the requirement for interposing signal converters when connecting directly to TTL-level equipment.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eModel Number\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong style=\"color: #0056b3;\"\u003e1769-OG16\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBrand \u0026amp; Manufacturer\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eProduct Series\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong style=\"color: #0056b3;\"\u003eCompactLogix\u003c\/strong\u003e \/ Compact I\/O Architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eModule Type\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e16-Point Discrete 5V DC TTL Output Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOperating Voltage Range\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 to 5.5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eGuaranteed ON-State Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 0.4 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eGuaranteed OFF-State Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 to 5.5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eUncertainty Voltage Band\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4 to 4.5 VDC (State indeterminate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Current Limits\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e24 mA Max per Point | 0.15 mA Min Load Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBackplane Communication\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e16-Point Discrete I\/O Memory Array Mapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eMaximum Cable Length\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e30 feet (9.1 meters) for DC I\/O lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eWiring Conductor Compatibility\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e22–14 AWG Solid Copper | 22–16 AWG Stranded Copper (90°C rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTerminal Connection Limit\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eMaximum 2 conductors per terminal screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eEnclosure Type \u0026amp; Mounting\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eOpen-Type \/ 35 mm DIN Rail or Direct Panel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePhysical Dimensions \u0026amp; Weight\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e4.7 x 1.4 x 3.4 in (118 x 35 x 87 mm) | 0.61 lbs (276 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eDiagnostic Capabilities \u0026amp; Circuit Features\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eChannel State LED Indicators:\u003c\/b\u003e Real-time LED status array reflects active bit status for each of the 16 TTL output points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBackplane Memory Mapping:\u003c\/b\u003e Bit-level tag mapping within Logix Designer allows fast status forced manipulation during system debug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNoise \u0026amp; Crosstalk Suppression:\u003c\/b\u003e Onboard low-pass filtering stabilizes logic transition states against high-frequency electromagnetic noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLevel Transition Boundary:\u003c\/b\u003e Hardware logic thresholds prevent illegal cross-state latching outside the 0.4–4.5 VDC undefined zone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTarget Application Scenarios \u0026amp; Equipment Integration\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSemiconductor Test Bench Interfacing:\u003c\/b\u003e Directly drives high-speed 5V TTL logic inputs on automated component testing rigs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCustom Microcontroller Communications:\u003c\/b\u003e Sends digital triggers and strobe signals to embedded 5V microcontrollers without external level shifters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptical Encoder \u0026amp; LED Display Driving:\u003c\/b\u003e Switches low-voltage 5V digital displays, annunciator boards, and optocoupler driver boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eInstallation \u0026amp; Wiring Best Practices\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSignal Wire Distance Cap:\u003c\/b\u003e Keep field wiring runs strictly under 30 feet (9.1 meters) to avoid voltage drop and stray capacitance signal distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTerminal Wire Capacity:\u003c\/b\u003e Never land more than two wires in a single terminal point on the removable terminal block.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCabinet Environmental Protection:\u003c\/b\u003e Because this card features an open-type enclosure, install inside an IP54 or NEMA 12 rated cabinet to protect against UV exposure, dust, and electrostatic discharge (ESD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Distances:\u003c\/b\u003e Maintain placement within the recommended power supply distance rating of the host 1769 power module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003ePackaging, Logistics \u0026amp; Warranty Terms\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eShipment Lead Time:\u003c\/b\u003e Dispatches within 24 to 48 hours following payment verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGlobal Express Couriers:\u003c\/b\u003e Express delivery via DHL Express, FedEx, and UPS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStandard Packaging:\u003c\/b\u003e Enclosed in protective anti-static ESD shielding bags and reinforced outer cartons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12-Month Coverage:\u003c\/b\u003e Protected by a full 12-month quality replacement warranty against hardware defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eEngineering Buyer's Guide\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVerify Voltage Logic Compatibility:\u003c\/b\u003e Confirm your driven load accepts 5V TTL levels rather than standard 24V DC discrete sourcing\/sinking signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCalculate Total Load Current:\u003c\/b\u003e Ensure individual point loads stay under 24 mA and exceed the 0.15 mA minimum threshold to guarantee state changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEvaluate Cable Routing Paths:\u003c\/b\u003e Plan cable ducts away from high-power AC motor leads to protect delicate 5V signal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions (FAQ)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: What occurs if the field line voltage sits in the 0.4 to 4.5 VDC region?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: This region represents an indeterminate transition zone where neither ON nor OFF output states can be guaranteed, potentially causing erratic signal switching.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Can this module directly power standard 24V DC industrial solenoid valves?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, this is a 5V DC TTL logic module; connecting 24V loads will cause permanent damage to output drivers and requires intermediate relay isolation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What causes logic signal distortion on output runs exceeding 30 feet?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Excessive line capacitance and resistance attenuate 5V TTL pulses over long distances, introducing noise and signal propagation delay.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Why is electrostatic discharge (ESD) protection critical during handling of this specific module?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: The open-type housing leaves low-voltage TTL silicon driver stages vulnerable to ESD strikes during cabinet installation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: How do I verify that an output point is firing correctly during commissioning?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Check the corresponding channel LED, measure logic voltage across the output terminal relative to return ground with an oscilloscope or digital multimeter, and verify tag status in Studio 5000.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eGlobal PLC Spare HUB's Insight\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eDuring an upgrade project for a high-speed packaging labeler, an automation technician reported intermittent signal losses on an optical mark strobe line connected to a \u003cstrong style=\"color: #0056b3;\"\u003e1769-OG16\u003c\/strong\u003e module. The system was generating false trigger errors during high-speed production runs.\u003c\/p\u003e\n\u003cp\u003eOur engineering team reviewed the layout and found that the technician had extended the unshielded signal cable run to 45 feet, passing through a wire duct adjacent to a 480V VFD output cable. Cable capacitance caused the 5V TTL ON-state voltage to drift into the 1.2V region—falling right into the 0.4–4.5 VDC indeterminate threshold!\u003c\/p\u003e\n\u003cp\u003eBy replacing the long cable run with a 20-foot shielded twisted-pair line, grounding the shield at the cabinet entry, and routing it away from high-voltage AC paths, the signal voltage returned to a clean 0.2V DC ON-state level. Strict adherence to cable distance and isolation rules is vital for 5V TTL reliability!\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013811396790,"sku":"1769-OG16","price":152.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1769-OG16_f518e840-652f-41f0-8891-ac7977e84a6c.jpg?v=1788944898","url":"https:\/\/www.plcsparehub.com\/products\/1769-og16-allen-bradley-compactlogix-16-point-ttl-output-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}