The Cisco 2500 access server series enables users to connect asynchronous devices such as dumb terminals, modems, router consoles, slot machines, and Integrated Services Digital Network (ISDN) terminal adapters (TAs) into a routed network. New features make these products easier to use than ever. Running the same Cisco IOS software that runs the backbone of the Internet on a high-performance router engine, this product family also gives users integrated synchronous serial ports to backhaul routed traffic through high-speed T1/E1 lines.