The Allen-Bradley 1769-IG16 compact input TTL module features 16 current-sourcing low to true inputs with an operational voltage range of 4.5 to 5.5 Volts DC, and selectable delay times from 0 to 8 milliseconds for ON to OFF and OFF to ON transitions. This module offers robust performance with a reinforced 75 Volts DC isolation voltage, a draw current of 120mA at 5.1 Volts DC, and can dissipate 1.6W of heat. Designed for demanding conditions, the 1769-IG16 operates efficiently in temperatures ranging from -40 to 85 degrees Celsius and can endure shocks up to 30G and vibrations of 5G within frequencies of 10 to 500 Hertz, making it suitable for installation at altitudes up to 2000 meters without performance degradation.