Digital; format in terms of hours, minutes, and seconds; real or lapsed time modes; pulse rate outputs; parallel bcd outputs; dc level shift code output; thumbwheel time setting; computer interface provisions; 115/230v AC , 48-62hz, 30w; 3.500 in. H, 19.000 in. W, 17.000 in. D; rack mount configuration standard; 23.0 lb