AE21 display control terminal provides a remote, menu driven terminal for controlling AE, AN and CC series displays. Typical systems include the AE21 data entry terminal, and one or more remote displays. Menu items includes (1) set time in 12/24 hour format. (2) start a count up elapsed timer from zero. (3) preset, start, stop, and reset a count down elapsed timer. (4) send up to six numbers. (5) send fire, bell, or help messages. Simply follow the prompting on the alpha-numeric display. The AE21 terminal can be connected to as many as 50 remote displays at distances of up to 2000ft away using a simple two-conductor cable such as Belden 8442. The remote displays, however do require local power to illuminate the digits. Displays are available with two, three, four, five and 6-digit configurations, with digit sizes of 0.56", 1", 1.8", 4", 8", or 12" high digits, which are visible from 5ft to 500ft away. Applicable for clock systems, speech timer systems for meetings or city council chambers, numerical paging, now serving/order up for restaurants or loading docks.