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The Allen-Bradley 1747-L20P module integrates a power supply and diverse I/O within a compact design, catering to efficient processing with an instruction capacity of 1,024 words. Designed for high-speed applications, its counter can process up to 8 kHz, with Input 0 configurable as a high-speed counter using a selectable jumper filter, and shielded cables recommended to minimize input noise. Operating efficiently within a frequency range of 47-63 Hz, it supports a line voltage of 120-240V AC, delivering reliable performance with its AC Triac output and precise input specifications including a nominal current of 12 mA at 240V AC and a maximum off-state current of 2 mA.