Allen Bradley AC/DC 120V Input Module, CAT # - 1771-IA

Allen Bradley AC/DC (120V) Input Module, CAT # - 1771-IA. This module contains input filtering to limit the effects of voltage transients caused by contact bounce and/or radiated electrical noise. The delay due to filtering is nominally 24 +/- 10 ms for turning AC inputs on or off; and 10 +/- 4 ms for turning DC inputs on, 20 +/- 9 ms for turning DC inputs off. The module receives its power through the 1771 I/O chassis backplane from the chassis power supply.