The Cisco 1400 series is a new generation of DSL routers-powered by Cisco IOS software, for small and medium-sized businesses and small branch offices of enterprises. The Cisco 1400 series offers high-speed Internet and intranet access with advanced security, high quality-of-service, ease-of-use, and management. The Cisco 1400 series is a key part of Cisco's comprehensive end-to-end DSL networking solutions.The Cisco 1401 router features a 10BaseT Ethernet interface and an ATM25 interface, which allows connectivity to an ATM cell-based WAN infrastructure. The ATM25 interface provides an external demarcation point as required by many telcos and can be combined with an external ATM25 (ADSL) modem to provide high-speed Internet/intranet access up to 8 Mbps.