T DLS is an integrated, high-availability platform designed to support application programs for Air Traffic Control (ATC) operations in Airport Traffic Control Towers (ATCTs). TDLS provides a user-friendly interface to air traffic control personnel to communicate with aircraft, airline/user computers, and FAA Air Route Traffic Control Center (ARTCC) host computers.

The TDLS platform is designed to support multiple concurrent applications on one platform. The operating system is SCO UnixWare 7.1.1 which supports and controls the basic interfacing between hardware and software. The data communications mediums include RS-422, RS232, and X.25 communications. The networking portion supports system-to-system and system to X-Terminal communications using Transmission Control Protocol/Internetwork Protocol.

BCI is supporting the FAA in porting the TDLS platform and software to a more reliable and maintainable platform. BCI is also implementing enhancements to include Graphical Man-Machine Interface, improved error detection and reporting, new adaptation management scheme.