Digital Counting Unit

A binary counting unit used to electronically count the quantity of discrete electrical impulses applied to its input terminal. It is normally used in conjuction with other counting units in a counter, electronic, digital readout. The unit is designed to count from zero to a predetermined digit, return to zero, and simultaneously generate an output signal for applications as required, such as to other counting units, meters, or remote indicators. It may be a plug-in or circuit card unit of vacuum tube or transistorized design. It may be nonindicating or indicating with display in the form of vertical, horizontal, in-line, or remote readout. Excludes counter, electrical; counter, electronic, digital; and counter, electronic, digital readout. See also indicator, digital display.