 XKL deployed DarkStar technology that allows enterprises to take advantage of higher reliability and allow for more control over IT resources at a lower cost.The "plug and play" system allow data network engineers to deploy their own optical transmission systems in metro, regional and long-distance networks.The TOAD-1 System, also known as TD-1, was announced in 1993 and built as an extended version of the DECSYSTEM-20 from Digital Equipment Corporation.