Digital display panel 1, toggle switches 30, thumbwheel switches 2, interface connectors on rear panel, paper tape reader, front panel access for rom circuit cards, operating power 115 v ac, 400 hz, 3 phase, 1.5 amps, o/a dim. 17.000 in. Lg, 19.000 in. W, 10.500 in. H, rack mtd, special features internal blower, designed for ground installation