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The Allen-Bradley 1769-IG16 compact input TTL module is a digital input module featuring 16 current-sourcing low-to-true inputs with an operational voltage range of 4.5 to 5.5 Volts DC. This module is equipped with a digital filter offering selectable delay times ranging from 0 to 8 milliseconds and operates with a current draw of 120mA at 5.1 Volts DC, dissipating 1.6 Watts of heat. With robust characteristics including a reinforced insulation design tested at 1697 Volts DC, it is suitable for high-reliability environments supporting shock up to 30G and vibration up to 5G, maintaining performance at altitudes up to 2000 meters and within temperatures from -40 to 85 degrees Celsius.