TDCS-255B is provides a clerk controlled, multi-zone display system configurable for any size multi-station requirement. CT-255B controller provides all time, date, and elapsed timer controls from a central location. Attractive desktop enclosure.suitable for RD-255B remote displays provide local display of time, date, and elapsed timer progress for an unlimited number of stations, TDCS-255B timed debate systems can be customized for your specific application. Built-In precision real time clock provides accurate time and date. Modular system easy installation. Low voltage components are connected using modular jacks and CAT 5 cable. DDPS-255B display driver power supply provides power and data for the Clerk's terminal, and up to 48 remote displays.